Effects of Nitrogen Reduction Model on Yield and Nitrogen Absorption and Utilization of Late-maturing Mid-japonica Rice with Different Panicle Types

doi:10.16819/j.1001-7216.2022.211003

Chinese Journal OF Rice Science ›› 2022, Vol. 36 ›› Issue (3): 278-294.DOI: 10.16819/j.1001-7216.2022.211003

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Effects of Nitrogen Reduction Model on Yield and Nitrogen Absorption and Utilization of Late-maturing Mid-japonica Rice with Different Panicle Types

ZHANG Xiaoxiang¹, SHAO Shimei², ZHAO Buhong¹^,^*(), ZHANG Hao²^,^*(), JI Hongjuan¹, XIAO Ning¹, PAN Cunhong¹, LI Yuhong¹, WU Yunyu¹, CAI Yue¹, LIU Jianju¹, JI Chunming¹, ZHANG Xiuqin¹, LIU Guangqing¹, ZHOU Changhai¹, HUANG Niansheng¹, LI Aihong¹

¹Lixiahe Agricultural Research Institute of Jiangsu Province/Co-Innovation Center for Modern Production Technology for Grain Crops, Yangzhou 225007, China
²Yangzhou University/Jiangsu Key Laboratory of Crop Cultivation and Physiology/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou 225009, China

Received:2021-10-13 Revised:2022-01-11 Online:2022-05-10 Published:2022-05-11
Contact: ZHAO Buhong, ZHANG Hao

氮肥减施模式对不同穗型迟熟中粳水稻产量及氮素吸收利用的影响

张小祥¹, 邵士梅², 赵步洪¹^,^*(), 张耗²^,^*(), 季红娟¹, 肖宁¹, 潘存红¹, 李育红¹, 吴云雨¹, 蔡跃¹, 刘建菊¹, 吉春明¹, 张秀琴¹, 刘广青¹, 周长海¹, 黄年生¹, 李爱宏¹

¹江苏里下河地区农业科学研究所/粮食作物现代产业技术协同创新中心，江苏扬州 225007
²扬州大学/江苏省作物遗传生理重点实验室/江苏省作物栽培生理重点实验室，江苏扬州 225009

通讯作者: 赵步洪,张耗
基金资助:
国家自然科学基金资助项目(32071944);国家现代农业产业技术体系建设专项(CARS-01-60);江苏省重点研发计划资助项目(BE2019343);江苏省自然科学基金资助项目(BK20181214);江苏省自然科学基金资助项目(BK20201219);扬州市社会发展项目(YZ2019050);扬州市现代农业项目(YZ2020032);江苏高校优势学科建设工程资助项目。

Abstract

Abstract:

【Objective】The purpose of this study is to clarify the effects of the key period of reduced nitrogen application and appropriate reduced application rate on the yield and nitrogen absorption and utilization efficiency of late-maturing mid-japonica rice with different panicle types. 【Method】Using large panicle cultivar (Fengjing 3227, FJ3227), medium panicle cultivar (Huidao 5, HD5) and small panicle cultivar (Yangfujing 8, YFJ8) as materials, 12 nitrogen fertilizer treatments were designed, namely zero nitrogen application (0N), local conventional nitrogen application (CN, no nitrogen reduction, 300 kg/hm²), basal nitrogen fertilizer reduction by 10% and 20% (BN₁₀, BN₂₀), nitrogen reduction by 10% and 20% in tillering fertilizer(TN₁₀, TN₂₀), nitrogen reduction by 10% and 20% in flower-promoting fertilizer (SPN₁₀, SPN₂₀), nitrogen reduction by 10% and 20% in flower-preserving fertilizer (SNN₁₀, SNN₂₀) and average nitrogen reduction of 10% and 20% (AN₁₀, AN₂₀), to study the effects of different nitrogen reduction modes on yield and nitrogen absorption and utilization of medium-maturing japonica rice varieties differed in panicle type. 【Result】Under reduced nitrogen treatment, the overall yield of FJ3227, HD5 and YFJ8 decreased by 6.17%, 7.67% and 7.81%, respectively, with greater decrease in 20% nitrogen reduction. For FJ3227, HD5 and YFJ8 under the treatment of SPN₁₀, AN₁₀ and SSN₁₀, the yield dropped by 0.17%, 0.79% and 0.23%, insignificantly lower than CN. Under the same nitrogen reduction model, the highest yield decline was observed in small panicle variety, followed by medium panicle type variety, and large panicle type variety. Nitrogen reduction reduced the number of effective panicles and the number of grains per panicle, but increased the seed setting rate and 1000-grain weight. As a result of nitrogen reduction, the number of effective panicles had the greatest promotion effect on the yield of the large panicle cultivar FJ3227, while the number of grains per panicle contributed the most to the yield of the medium panicle cultivar HD5 and the small panicle cultivar YFJ8. Nitrogen reduction treatment reduced the amount of nitrogen transportation and the amount of nitrogen accumulation. And the nitrogen reduction treatments reduced the nitrogen uptake at the jointing stage, heading stage and maturity stage. There were significant differences between treatments and varieties. Nitrogen reduction improved nitrogen fertilizer absorption and utilization and nitrogen partial productivity. Under the nitrogen reduction mode, the large panicle cultivar FJ3227, the medium panicle cultivar HD5, and the small panicle cultivar YFJ8 under the treatments of SPN₁₀, AN₁₀, and SSN₁₀ have higher nitrogen use efficiency. 【Conclusion】The large panicle variety can reduce nitrogen by appropriate amount of fertilizer for promoting flowers, the small panicle variety can reduce nitrogen by medium amount of flower-preserving fertilizer, and the medium panicle variety can achieve nitrogen reduction without reducing yield and improve nitrogen absorption and utilization. Medium nitrogen reduction can adjust the growth characteristics of different panicle rice populations to achieve stable yield. Yet the excessive nitrogen reduction weakens its yield regulation capacity.

Key words: late-maturing mid-japonica rice, panicle type, nitrogen reduction, yield, nitrogen absorption and utilization

摘要：

【目的】阐明氮肥减施关键时期和适宜减施量对不同穗型迟熟中粳水稻的产量及氮肥吸收利用的影响。【方法】以大穗型品种(丰粳3227)、中穗型品种(淮稻5号)和小穗型品种(扬辐粳8号)为材料，设置12种氮肥处理模式，即不施氮(0N)、当地常规施氮(CN，300 kg/hm²)、基肥减总氮10%与20%(BN₁₀、BN₂₀)、分蘖肥减总氮10%与20%(TN₁₀、TN₂₀)、促花肥减总氮10%与20%(SPN₁₀、SPN₂₀)、保花肥减总氮10%与20%(SNN₁₀、SNN₂₀)和均衡减氮10%与20%(AN₁₀、AN₂₀)。【结果】减氮处理下大穗型品种丰粳3227、中穗型品种淮稻5号和小穗型品种扬辐粳8号产量整体降幅分别为6.17%、7.67%和7.81%，尤以减氮20%降幅最大，其中，丰粳3227、淮稻5号和扬辐粳8号在SPN₁₀、AN₁₀和SSN₁₀处理下产量降幅分别为0.17%、0.79%和0.23%，与CN相比略有下降但差异不显著。在相同减氮模式下，产量降幅最高的为小穗型品种，其次是中穗型品种，最后则为大穗型品种。减氮降低了单位面积有效穗数和每穗粒数，但提高了结实率。减氮处理后有效穗数对大穗型品种丰粳3227的产量促进作用最大，每穗粒数则对中穗型品种淮稻5号和小穗型品种扬辐粳8号产量的贡献最大。减氮处理降低了氮素转运量和穗部氮素积累量，提高了氮素吸收利用率和氮肥偏生产力。减氮模式下大穗型品种丰粳3227、中穗型品种淮稻5号、小穗型品种扬辐粳8号分别在SPN₁₀、AN₁₀、SSN₁₀处理下的氮肥利用效率指标总体优于其他处理。【结论】大穗型品种在促花肥适量减氮、小穗型品种在保花肥适量减氮及中穗型品种均衡减氮处理下达到减氮不减产并提高氮肥吸收利用率。适量减氮能够调节不同穗型水稻群体的生长特性以实现产量稳定，但过量减氮使水稻群体自身的产量调节效应变弱。

关键词: 迟熟中粳水稻, 穗型, 氮肥减施, 产量, 氮素吸收利用

ZHANG Xiaoxiang, SHAO Shimei, ZHAO Buhong, ZHANG Hao, JI Hongjuan, XIAO Ning, PAN Cunhong, LI Yuhong, WU Yunyu, CAI Yue, LIU Jianju, JI Chunming, ZHANG Xiuqin, LIU Guangqing, ZHOU Changhai, HUANG Niansheng, LI Aihong. Effects of Nitrogen Reduction Model on Yield and Nitrogen Absorption and Utilization of Late-maturing Mid-japonica Rice with Different Panicle Types[J]. Chinese Journal OF Rice Science, 2022, 36(3): 278-294.

张小祥, 邵士梅, 赵步洪, 张耗, 季红娟, 肖宁, 潘存红, 李育红, 吴云雨, 蔡跃, 刘建菊, 吉春明, 张秀琴, 刘广青, 周长海, 黄年生, 李爱宏. 氮肥减施模式对不同穗型迟熟中粳水稻产量及氮素吸收利用的影响[J]. 中国水稻科学, 2022, 36(3): 278-294.

Figures/Tables 10

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[32]	金树权, 陈若霞, 汪峰, 姚红燕, 谌江华. 不同氮肥运筹模式对稻田田面水氮浓度和水稻产量的影响[J]. 水土保持学报, 2020, 34(1): 242-248.
	Jin S Q, Chen R X, Wang F, Yao H Y, Chen J H. Effects of different nitrogen fertilizer application modes on the variation of nitrogen concentration in paddy field surface water and the yield of rice[J]. Journal of Soil and Water Conservation, 2020, 34(1): 242-248. (in Chinese with English abstract)
[33]	吴立鹏, 张士荣, 娄金华, 魏立兴, 孙泽强, 刘盛林, 丁效东. 秸秆还田与优化施氮对稻田土壤碳氮含量及产量的影响[J]. 华北农学报, 2019, 34(4): 158-166.
	Wu L P, Zhang S R, Lou J H, Wei L X, Sun Z Q, Liu S L, Ding X D. Effects of straw returning and nitrogen fertilizer on soil C and N content and yield of rice[J]. Acta Agriculturae Boreali-Sinica, 2019, 34(4): 158-166. (in Chinese with English abstract)
[34]	仇景涛, 吴壮, 蒋天昊, 刘飞, 张祖建. 不同生育时期氮肥减施对水稻群体生产特征的影响及减肥策略初步分析[J]. 扬州大学学报: 农业与生命科学版, 2020, 41(3): 52-58+65.
	Qiu J T, Wu Z, Jiang T H, Liu F, Zhang Z J. Effects of nitrogen reduction at different growth stages on rice population production characteristics and preliminary analysis of nitrogen reduction strategies[J]. Journal of Yangzhou University: Agricultural and Life Science Edition), 2020, 41(3): 52-58+65. (in Chinese with English abstract)

减施处理 Nitrogen reduction treatment	总氮量 Total nitrogen level /(kg·hm^-2)	基肥 Basal fertilizer level /(kg·hm^-2)	分蘖肥 Tillering fertilizer level /(kg·hm^-2)	促花肥 Spikelet-promoting fertilizer level /(kg·hm^-2)	保花肥 Spikelet-sustaining fertilizer level /(kg·hm^-2)	运筹比例 Ratio
不施氮 0N	0	0	0	0	0	0﹕0﹕0﹕0
当地常规施氮 CN	300	120	60	60	60	4﹕2﹕2﹕2
基肥减氮10% BN₁₀	270	90	60	60	60	3.33﹕2.22﹕2.22﹕2.22
分蘖肥减氮10% TN₁₀	270	120	30	60	60	4.44﹕1.11﹕2.22﹕2.22
促花肥减氮10% SPN₁₀	270	120	60	30	60	4.44﹕2.22﹕1.11﹕2.22
保花肥减氮10% SSN₁₀	270	120	60	60	30	4.44﹕2.22﹕2.22﹕1.11
均衡减氮10% AN₁₀	270	112.5	52.5	52.5	52.5	4.17﹕1.94﹕1.94﹕1.94
基肥减氮20% BN₂₀	240	60	60	60	60	2.5﹕2.5﹕2.5﹕2.5
分蘖肥减氮20% TN₂₀	240	120	0	60	60	5﹕0﹕2.5﹕2.5
促花肥减氮20% SPN₂₀	240	120	60	0	60	5﹕2.5﹕0﹕2.5
保花肥减氮20% SSN₂₀	240	120	60	60	0	5﹕2.5﹕2.5﹕0
均衡减氮20% AN₂₀	240	105	45	45	45	4.375﹕1.875﹕1.875﹕1.875

减施处理 Nitrogen reduction treatment	总氮量 Total nitrogen level /(kg·hm^-2)	基肥 Basal fertilizer level /(kg·hm^-2)	分蘖肥 Tillering fertilizer level /(kg·hm^-2)	促花肥 Spikelet-promoting fertilizer level /(kg·hm^-2)	保花肥 Spikelet-sustaining fertilizer level /(kg·hm^-2)	运筹比例 Ratio
不施氮 0N	0	0	0	0	0	0﹕0﹕0﹕0
当地常规施氮 CN	300	120	60	60	60	4﹕2﹕2﹕2
基肥减氮10% BN₁₀	270	90	60	60	60	3.33﹕2.22﹕2.22﹕2.22
分蘖肥减氮10% TN₁₀	270	120	30	60	60	4.44﹕1.11﹕2.22﹕2.22
促花肥减氮10% SPN₁₀	270	120	60	30	60	4.44﹕2.22﹕1.11﹕2.22
保花肥减氮10% SSN₁₀	270	120	60	60	30	4.44﹕2.22﹕2.22﹕1.11
均衡减氮10% AN₁₀	270	112.5	52.5	52.5	52.5	4.17﹕1.94﹕1.94﹕1.94
基肥减氮20% BN₂₀	240	60	60	60	60	2.5﹕2.5﹕2.5﹕2.5
分蘖肥减氮20% TN₂₀	240	120	0	60	60	5﹕0﹕2.5﹕2.5
促花肥减氮20% SPN₂₀	240	120	60	0	60	5﹕2.5﹕0﹕2.5
保花肥减氮20% SSN₂₀	240	120	60	60	0	5﹕2.5﹕2.5﹕0
均衡减氮20% AN₂₀	240	105	45	45	45	4.375﹕1.875﹕1.875﹕1.875

品种/处理Cultivar/treatment	穗数 Panicle number /(×10⁴ hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate/%	千粒重 1000-grain weight/g	产量 Yield/(t·hm^-2)
丰粳3227 Fengjing 3227
0N	265.66±1.50 c	133.94±2.65 c	90.5±1.98 a	26.65±0.13 a	8.58±0.18 f
CN	318.92±28.43 a	162.14±7.25 a	86.7±2.20 bc	25.58±0.77 bc	11.47±0.12 a
BN₁₀	298.43±5.57 ab	161.53±6.12 a	88.0±2.34 ab	25.93±0.44 abc	11.00±0.01 b
TN₁₀	295.45±3.91 ab	161.79±5.91 a	88.5±2.93 ab	26.01±0.70 abc	11.00±0.03 b
SPN₁₀	317.98±14.02 a	156.23±4.31 ab	88.6±2.81 ab	26.01±0.92 abc	11.45±0.07 a
SSN₁₀	319.15±10.00 a	162.07±5.82 a	83.9±1.66 cd	25.19±0.47 c	10.93±0.08 b
AN₁₀	304.64±8.89 ab	159.48±4.41 a	87.1±1.38 b	25.65±0.18 bc	10.86±0.09 bc
BN₂₀	285.66±19.62 bc	160.69±7.28 a	88.1±2.24 ab	26.08±0.07 ab	10.54±0.06 cde
TN₂₀	278.42±12.78 bc	162.33±2.00 a	88.3±2.33 ab	26.07±0.14 ab	10.40±0.16 de
SPN₂₀	317.77±12.74 a	145.31±6.73 b	88.6±1.50 ab	26.08±0.24 ab	10.67±0.17 bcd
SSN₂₀	316.37±8.54 a	162.79±5.52 a	82.0±1.10 d	24.18±0.48 d	10.20±0.13 e
AN₂₀	299.15±8.78 ab	156.79±5.43 a	86.2±0.99 bc	25.54±0.28 bc	10.32±0.40 de
淮稻5号 Huaidao 5
0N	277.75±3.47 c	99.69±4.10 d	94.6±0.84 a	29.52±0.21 a	7.73±0.25 f
CN	323.45±17.36 a	130.07±4.95 a	91.6±0.40 abc	28.21±0.51 b	10.87±0.04 a
BN₁₀	310.11±9.72 ab	129.09±5.25 a	92.0±1.69 ab	28.40±0.08 b	10.46±0.02 bc
TN₁₀	309.29±10.56 ab	129.22±3.18 a	92.1±1.48 ab	28.40±0.28 b	10.46±0.08 bc
SPN₁₀	322.48±8.70 a	117.03±6.58 bc	92.1±1.30 ab	28.45±0.21 b	9.89±0.29 d
SSN₁₀	324.03±28.20 a	130.61±9.18 a	90.2±1.10 bc	27.37±0.65 cd	10.45±0.05 bc
AN₁₀	316.44±8.74 ab	129.76±3.70 a	92.2±1.20 ab	28.49±0.18 b	10.78±0.08 ab
BN₂₀	293.79±11.13 bc	129.97±4.20 a	92.9±0.97 ab	28.51±0.29 b	10.11±0.11 cd
TN₂₀	293.24±9.73 bc	130.35±3.23 a	93.2±1.15 ab	28.60±0.22 b	10.19±0.09 cd
SPN₂₀	323.33±3.51 a	110.31±5.11 cd	93.2±0.35 ab	28.61±0.31 b	9.51±0.26 e
SSN₂₀	322.85±7.72 a	128.03±2.70 a	88.8±1.49 c	26.79±0.33 d	9.83±0.40 de
AN₂₀	311.04±11.27 ab	123.19±4.62 ab	91.5±0.86 bc	28.16±0.75 bc	9.88±0.34 de
扬辐粳8号Yangfujing 8
0N	291.82±8.34 c	91.86±4.28 c	91.4±1.64 a	26.98±0.89 a	6.61±0.49 e
CN	342.79±15.22 a	112.27±4.44 a	88.9±2.12 ab	25.74±0.15 b	8.80±0.08 a
BN₁₀	322.14±15.69 ab	112.42±9.25 a	89.5±1.73 a	25.79±0.63 b	8.36±0.02 b
TN₁₀	321.50±43.88 ab	112.82±14.85 a	89.5±0.76 a	25.78±0.79 b	8.37±0.00 b
SPN₁₀	342.16±4.96 a	102.24±2.95 abc	89.9±1.10 a	25.81±0.19 b	8.11±0.28 b
SSN₁₀	342.96±12.40 a	112.73±5.25 a	88.5±0.47 ab	25.68±0.19 b	8.78±0.08 a
AN₁₀	330.99±11.11 ab	109.36±4.16 a	89.5±1.30 a	25.87±0.36 b	8.38±0.01 b
BN₂₀	310.31±6.10 bc	112.00±6.36 a	89.9±0.82 a	25.83±0.35 b	8.07±0.16 bc
TN₂₀	307.15±7.06 bc	112.84±5.12 a	90.3±0.73 a	25.85±0.41 b	8.09±0.14 b
SPN₂₀	342.06±2.50 a	95.54±3.79 bc	90.4±2.54 a	25.85±0.20 b	7.64±0.23 d
SSN₂₀	341.58±6.66 a	112.09±5.78 a	85.9±2.05 b	24.69±0.15 c	8.12±0.08 b
AN₂₀	318.20±4.48 abc	106.30±5.87 ab	88.7±1.16 ab	25.68±0.46 b	7.70±0.28 cd
F值F-value
品种Variety(V)	47.022^**	185.485^**	18.904^**	114.049^**	1442.01^**
氮肥处理Nitrogen(N)	8.338^**	14.835^**	7.425^**	11.58^**	79.032^**
V×N	0.062^ns	0.253^ns	0.344^ns	0.42^ns	3.87^**

品种/处理Cultivar/treatment	穗数 Panicle number /(×10⁴ hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate/%	千粒重 1000-grain weight/g	产量 Yield/(t·hm^-2)
丰粳3227 Fengjing 3227
0N	265.66±1.50 c	133.94±2.65 c	90.5±1.98 a	26.65±0.13 a	8.58±0.18 f
CN	318.92±28.43 a	162.14±7.25 a	86.7±2.20 bc	25.58±0.77 bc	11.47±0.12 a
BN₁₀	298.43±5.57 ab	161.53±6.12 a	88.0±2.34 ab	25.93±0.44 abc	11.00±0.01 b
TN₁₀	295.45±3.91 ab	161.79±5.91 a	88.5±2.93 ab	26.01±0.70 abc	11.00±0.03 b
SPN₁₀	317.98±14.02 a	156.23±4.31 ab	88.6±2.81 ab	26.01±0.92 abc	11.45±0.07 a
SSN₁₀	319.15±10.00 a	162.07±5.82 a	83.9±1.66 cd	25.19±0.47 c	10.93±0.08 b
AN₁₀	304.64±8.89 ab	159.48±4.41 a	87.1±1.38 b	25.65±0.18 bc	10.86±0.09 bc
BN₂₀	285.66±19.62 bc	160.69±7.28 a	88.1±2.24 ab	26.08±0.07 ab	10.54±0.06 cde
TN₂₀	278.42±12.78 bc	162.33±2.00 a	88.3±2.33 ab	26.07±0.14 ab	10.40±0.16 de
SPN₂₀	317.77±12.74 a	145.31±6.73 b	88.6±1.50 ab	26.08±0.24 ab	10.67±0.17 bcd
SSN₂₀	316.37±8.54 a	162.79±5.52 a	82.0±1.10 d	24.18±0.48 d	10.20±0.13 e
AN₂₀	299.15±8.78 ab	156.79±5.43 a	86.2±0.99 bc	25.54±0.28 bc	10.32±0.40 de
淮稻5号 Huaidao 5
0N	277.75±3.47 c	99.69±4.10 d	94.6±0.84 a	29.52±0.21 a	7.73±0.25 f
CN	323.45±17.36 a	130.07±4.95 a	91.6±0.40 abc	28.21±0.51 b	10.87±0.04 a
BN₁₀	310.11±9.72 ab	129.09±5.25 a	92.0±1.69 ab	28.40±0.08 b	10.46±0.02 bc
TN₁₀	309.29±10.56 ab	129.22±3.18 a	92.1±1.48 ab	28.40±0.28 b	10.46±0.08 bc
SPN₁₀	322.48±8.70 a	117.03±6.58 bc	92.1±1.30 ab	28.45±0.21 b	9.89±0.29 d
SSN₁₀	324.03±28.20 a	130.61±9.18 a	90.2±1.10 bc	27.37±0.65 cd	10.45±0.05 bc
AN₁₀	316.44±8.74 ab	129.76±3.70 a	92.2±1.20 ab	28.49±0.18 b	10.78±0.08 ab
BN₂₀	293.79±11.13 bc	129.97±4.20 a	92.9±0.97 ab	28.51±0.29 b	10.11±0.11 cd
TN₂₀	293.24±9.73 bc	130.35±3.23 a	93.2±1.15 ab	28.60±0.22 b	10.19±0.09 cd
SPN₂₀	323.33±3.51 a	110.31±5.11 cd	93.2±0.35 ab	28.61±0.31 b	9.51±0.26 e
SSN₂₀	322.85±7.72 a	128.03±2.70 a	88.8±1.49 c	26.79±0.33 d	9.83±0.40 de
AN₂₀	311.04±11.27 ab	123.19±4.62 ab	91.5±0.86 bc	28.16±0.75 bc	9.88±0.34 de
扬辐粳8号Yangfujing 8
0N	291.82±8.34 c	91.86±4.28 c	91.4±1.64 a	26.98±0.89 a	6.61±0.49 e
CN	342.79±15.22 a	112.27±4.44 a	88.9±2.12 ab	25.74±0.15 b	8.80±0.08 a
BN₁₀	322.14±15.69 ab	112.42±9.25 a	89.5±1.73 a	25.79±0.63 b	8.36±0.02 b
TN₁₀	321.50±43.88 ab	112.82±14.85 a	89.5±0.76 a	25.78±0.79 b	8.37±0.00 b
SPN₁₀	342.16±4.96 a	102.24±2.95 abc	89.9±1.10 a	25.81±0.19 b	8.11±0.28 b
SSN₁₀	342.96±12.40 a	112.73±5.25 a	88.5±0.47 ab	25.68±0.19 b	8.78±0.08 a
AN₁₀	330.99±11.11 ab	109.36±4.16 a	89.5±1.30 a	25.87±0.36 b	8.38±0.01 b
BN₂₀	310.31±6.10 bc	112.00±6.36 a	89.9±0.82 a	25.83±0.35 b	8.07±0.16 bc
TN₂₀	307.15±7.06 bc	112.84±5.12 a	90.3±0.73 a	25.85±0.41 b	8.09±0.14 b
SPN₂₀	342.06±2.50 a	95.54±3.79 bc	90.4±2.54 a	25.85±0.20 b	7.64±0.23 d
SSN₂₀	341.58±6.66 a	112.09±5.78 a	85.9±2.05 b	24.69±0.15 c	8.12±0.08 b
AN₂₀	318.20±4.48 abc	106.30±5.87 ab	88.7±1.16 ab	25.68±0.46 b	7.70±0.28 cd
F值F-value
品种Variety(V)	47.022^**	185.485^**	18.904^**	114.049^**	1442.01^**
氮肥处理Nitrogen(N)	8.338^**	14.835^**	7.425^**	11.58^**	79.032^**
V×N	0.062^ns	0.253^ns	0.344^ns	0.42^ns	3.87^**

品种/处理Cultivar/treatment	穗数 Panicle number /(×10⁴ hm^-2)	每穗粒数 Spikelet number per panicle	结实率 Seed-setting rate/%	千粒重 1000-grain weight/g	产量 Yield/(t·hm^-2)
丰粳3227 Fengjing 3227
0N	262.00±5.36 d	130.78±1.08 f	90.15±0.85 a	26.28±0.09 a	8.12±0.24 g
CN	329.49±20.28 a	157.56±1.84 abc	86.83±1.27 cd	25.59±0.71 bc	11.51±0.11 a
BN₁₀	301.76±10.46 b	157.38±1.02 abc	87.41±0.82 cd	25.92±0.44 abc	10.75±0.12 cd
TN₁₀	306.00±8.69 b	157.92±2.59 ab	86.24±0.77 de	25.89±0.22 abc	10.78±0.14 cd
SPN₁₀	309.75±3.49 ab	158.59±1.26 a	87.67±1.24 cd	26.08±0.27 abc	11.23±0.27 ab
SSN₁₀	312.54±5.29 ab	157.69±342 abc	86.24±0.55 de	25.49±0.55 c	10.83±0.16 cd
AN₁₀	307.69±5.56 b	158.27±1.00 ab	87.45±0.69 cd	25.66±0.10 abc	10.93±0.28 bc
BN₂₀	300.47±4.16 b	153.03±1.70 cde	87.51±0.82 cd	26.15±0.10 ab	10.52±0.15 de
TN₂₀	281.98±6.38 c	157.55±2.00 abc	89.35±0.57 ab	26.11±0.15 abc	10.36±0.18 ef
SPN₂₀	312.40±8.76 ab	148.88±2.62 e	88.30±0.80 bc	26.12±0.12 ab	10.72±0.07 cd
SSN₂₀	309.60±4.62 ab	153.64±1.72 bcd	84.15±0.83 f	25.84±0.25 abc	10.34±0.05 ef
AN₂₀	300.50±8.60 b	152.72±2.19 de	85.11±1.12 ef	25.71±0.12 abc	10.04±0.11 f
淮稻5号 Huaidao 5
0N	287.59±7.34 d	98.69±2.69 g	92.41±0.94 ab	28.95±0.20 a	7.59±0.08 g
CN	317.49±8.73 abc	130.07±4.95 a	91.17±0.20 bc	28.50±0.07 ab	10.72±0.11 a
BN₁₀	315.74±7.45 abc	125.11±2.92 bcd	91.08±0.51 bc	28.49±0.13 ab	10.25±0.05 bcd
TN₁₀	310.42±2.67 bc	125.90±1.22 abc	91.74±0.59 abc	28.51±0.13 ab	10.22±0.12 bcd
SPN₁₀	320.78±5.34 abc	123.54±2.70 cde	91.44±0.82 abc	28.45±0.05 ab	10.31±0.09 bc
SSN₁₀	332.39±10.80 a	124.04±2.47 cde	91.01±0.18 bc	27.02±0.32 c	10.13±0.09 cde
AN₁₀	315.17±4.60 abc	129.57±1.48 ab	91.00±0.60 bc	28.42±0.14 ab	10.56±0.06 ab
BN₂₀	312.65±9.99 abc	121.02±1.34 de	92.37±0.71 ab	28.35±0.11 ab	9.90±0.11 def
TN₂₀	301.80±6.61 cd	122.01±1.37 cde	92.91±0.41 a	28.52±0.16 ab	9.75±0.08 f
SPN₂₀	333.92±11.57 a	113.79±2.60 f	90.71±0.55 bc	28.52±0.12 ab	9.83±0.45 ef
SSN₂₀	330.56±8.61 ab	120.13±1.20 e	90.14±0.50 c	27.29±0.26 c	9.76±0.15 f
AN₂₀	316.25±7.30 abc	121.06±1.35 de	90.81±0.51 bc	28.18±0.17 b	9.79±0.13 ef
扬辐粳8号Yangfujing 8
0N	315.19±9.54 de	89.93±1.92 e	91.31±0.60 a	26.57±0.31 a	6.88±0.25 f
CN	334.98±6.43 bcd	111.63±1.96 a	90.38±0.67 abcd	25.84±0.24 b	8.73±0.16 a
BN₁₀	327.02±2.21 cde	110.12±1.97 ab	89.64±0.41 abcd	25.79±0.34 b	8.32±0.15 bc
TN₁₀	329.65±5.74 bcd	108.84±1.29 ab	89.27±0.78 cd	25.78±0.79 b	8.25±0.18 bc
SPN₁₀	350.12±8.95 ab	102.24±2.95 d	90.48±0.64 abc	25.71±0.05 b	8.32±0.11 bc
SSN₁₀	332.20±6.49 bcd	112.14±1.43 a	89.20±0.60 cd	25.80±0.05 b	8.57±0.12 ab
AN₁₀	329.38±2.91 bcd	106.90±1.85 bc	88.91±0.52 cd	26.01±0.29 b	8.14±0.06 cd
BN₂₀	307.28±3.12 e	112.43±1.92 a	89.50±0.44 bcd	26.14 ±0.14 ab	8.08±0.04 cde
TN₂₀	316.66±18.23 de	110.25±3.98 ab	91.01±0.32 ab	25.80±0.32 b	8.18±0.07 cd
SPN₂₀	345.03±12.13 abc	99.13±1.12 d	88.68±1.20 de	26.01±0.16 b	7.88±0.15 de
SSN₂₀	359.67±19.52 a	103.70±4.13 cd	87.18±1.71 e	24.82±0.10 c	8.05±0.09 cde
AN₂₀	335.34±9.03 bcd	100.22±2.19 d	89.08±0.32 cd	25.96±0.10 b	7.77±0.15 e
F值F-value
品种Variety(V)	760.85^**	2202.77^**	108.45^**	264.60^*	1934.99^**
氮肥处理Nitrogen(N)	12.59^**	71.21^**	12.95^**	9.80^*	112.32^**
V×N	1.75^**	3.62^**	1.80^*	2.53^**	5.33^**

Effects of Nitrogen Reduction Model on Yield and Nitrogen Absorption and Utilization of Late-maturing Mid-japonica Rice with Different Panicle Types

氮肥减施模式对不同穗型迟熟中粳水稻产量及氮素吸收利用的影响

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品种 Cultivar	产量构成因素 Yield components				Y效应 Effect on Y (P_i-Y)
品种 Cultivar	X₂	X₃	X₄	Y(Yield)	Y效应 Effect on Y (P_i-Y)
丰粳3227 Fengjing 3227
单位面积有效穗数Panicle number（X₁）	0.011^ns	-0.540^**	-0.491^**	0.547^**	1.015
每穗粒数Spikelet number per panicle（X₂）		-0.298^ns	-0.381^*	0.651^**	0.917
结实率Full-filled grain rate（X₃）			0.519^**	-0.112^ns	0.478
千粒重1000-grain weight（X₄）				-0.153^ns	0.447
淮稻5号 Huaidao 5
单位面积有效穗数Panicle number（X₁）	-0.007^ns	-0.409^*	-0.560^**	0.460^**	0.756
每穗粒数Spikelet number per panicle（X₂）		-0.500^**	-0.406^*	0.800^**	1.064
结实率Full-filled grain rate（X₃）			0.722^**	-0.354^*	0.335
千粒重1000-grain weight（X₄）				-0.344^*	0.245
扬辐粳8号 Yangfujing 8 -0.322ns
单位面积有效穗数Panicle number（X₁）	-0.243^ns	-0.214^ns	-0.322^ns	0.458^**	0.925
每穗粒数Spikelet number per panicle（X₂）		-0.515^**	-0.429^**	0.665^**	1.192
结实率Full-filled grain rate（X₃）			0.432^**	-0.368^*	0.356
千粒重1000-grain weight（X₄）				-0.327^ns	0.289

品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	拔节期 Jointing period		抽穗期 Heading date		成熟期 Maturity
品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%
丰粳3227 Fengjing 3227
0N	0	81.46±5.18 e	1.82±0.02 e	97.93±1.26 g	1.23±0.00 e	137.74±4.45 f	0.87±0.02 b
CN	300	135.43±3.75 a	2.28±0.04 a	199.80±0.46 a	1.89±0.01 a	243.95±0.74 a	1.17±0.02 a
BN₁₀	270	120.80±5.28 b	2.19±0.06 ab	186.89±5.45 b	1.85±0.02 ab	238.55±2.83 c	1.16±0.01 a
TN₁₀	270	118.58±1.98 bc	2.19±0.04 ab	183.46±2.73 bc	1.81±0.02 bc	235.38±1.66 cd	1.16±0.00 a
SPN₁₀	270	130.61±3.92 a	2.26±0.07 a	198.66±4.27 a	1.89±0.01 a	243.34±2.44 ab	1.17±0.01 a
SSN₁₀	270	117.28±1.64 bc	2.14±0.03 bc	178.89±3.18 cd	1.81±0.01 bc	239.23±1.95 bc	1.17±0.01 a
AN₁₀	270	115.88±2.67 bc	2.18±0.03 ab	179.92±2.24 cd	1.79±0.01 cd	239.58±2.39 abc	1.17±0.00 a
BN₂₀	240	99.86±4.88 d	1.96±0.04 d	175.37±6.27 de	1.77±0.05 cd	232.19±2.14 de	1.15±0.01 a
TN₂₀	240	111.12±3.16 c	2.12±0.03 bc	169.86±3.04 ef	1.75±0.03 cd	233.92±1.08 de	1.16±0.00 a
SPN₂₀	240	112.96±3.13 bc	2.13±0.02 bc	171.37±5.35 e	1.74±0.04 d	232.09±0.91 de	1.14±0.01 a
SSN₂₀	240	111.48±6.14 c	2.08±0.09 bc	164.40±4.15 f	1.79±0.02 bcd	230.66±1.83 de	1.14±0.01 a
AN₂₀	240	103.37±2.26 d	2.06±0.06 c	173.74±2.70 de	1.78±0.02 cd	230.37±1.46 e	1.15±0.01 a
淮稻5号 Huaidao 5
0N	0	87.74±0.81 d	1.93±0.01 e	104.00±0.68 f	1.32±0.01 f	131.07±2.18 d	0.90±0.00 e
CN	300	140.39±1.17 a	2.43±0.02 a	208.85±3.67 a	2.03±0.01 a	238.11±1.25 a	1.15±0.01 cd
BN₁₀	270	122.35±5.64 b	2.31±0.12 bc	183.08±2.81 bc	1.91±0.02 b	233.83±1.30 ab	1.18±0.01 ab
TN₁₀	270	121.14±1.04 b	2.24±0.02 cd	180.15±7.07 bc	1.88±0.01 bc	230.12±4.07 b	1.15±0.01 cd
SPN₁₀	270	120.71±2.70 b	2.23±0.04 cd	185.45±1.98 b	1.92±0.02 b	235.83±1.95 a	1.16±0.03 bcd
SSN₁₀	270	122.58±2.16 b	2.16±0.01 d	181.45±3.19 bc	1.85±0.03 c	234.69±1.03 a	1.18±0.00 ab
AN₁₀	270	136.21±3.55 a	2.39±0.02 ab	202.95±3.00 a	2.02±0.02 a	238.02±1.21 a	1.20±0.00 a
BN₂₀	240	116.73±4.38 bc	2.21±0.03 cd	172.06±4.01 de	1.83±0.01 cd	220.60±2.03 c	1.14±0.00 d
TN₂₀	240	116.58±1.78 bc	2.27±0.01 cd	177.63±3.83 cd	1.92±0.04 b	219.97±2.42 c	1.16±0.01 bcd
SPN₂₀	240	111.94±3.92 c	2.16±0.06 d	171.75±0.98 de	1.83±0.03 cd	220.11±1.09 c	1.15±0.00 cd
SSN₂₀	240	109.48±3.55 c	2.17±0.05 d	173.00±1.66 de	1.77±0.03 e	219.68±1.42 c	1.15±0.00 cd
AN₂₀	240	110.33±1.17 c	2.19±0.02 d	170.02±0.68 e	1.78±0.02 de	223.22±0.89 c	1.17±0.00 abc
扬辐粳8号Yangfujing 8
0N	0	71.98±2.20 f	1.78±0.01 g	91.97±2.94 g	1.18±0.02 f	129.37±4.81 c	0.81±0.02 e
CN	300	127.30±3.30 a	2.30±0.06 a	184.54±1.17 a	1.85±0.02 a	233.01±1.53 a	1.20±0.01 a
BN₁₀	270	112.78±5.99 cd	2.26±0.03 ab	166.04±2.58 bc	1.77±0.01 bc	230.40±1.86 a	1.18±0.01 a
TN₁₀	270	114.85±3.13 bc	2.22±0.04 abc	168.84±3.99 b	1.81±0.03 ab	230.15±1.81 a	1.19±0.02 a
SPN₁₀	270	114.03±1.74 bc	2.19±0.04 bcd	162.23±0.35 bcd	1.74±0.02 cd	230.29±0.71 a	1.18±0.01 a
SSN₁₀	270	120.79±2.24 ab	2.27±0.05 ab	179.23±0.45 a	1.82±0.01 ab	232.93±1.35 a	1.18±0.01 a
AN₁₀	270	114.12±0.53 bc	2.21±0.05 abcd	161.66±5.19 cde	1.73±0.03 cd	229.10±3.12 a	1.12±0.05 bc
BN₂₀	240	101.68±2.86 e	2.03±0.02 f	157.83±2.00 def	1.73±0.02 cd	220.79±0.65 b	1.15±0.01 b
TN₂₀	240	104.94±1.53 de	2.12±0.06 def	154.48±1.85 ef	1.71±0.03 de	219.97±0.47 b	1.12±0.01 bc
SPN₂₀	240	105.35±6.88 de	2.08±0.08 ef	156.85±3.96 def	1.72±0.05 cde	220.27±1.86 b	1.08±0.03 d
SSN₂₀	240	105.72±1.16 de	2.09±0.01 ef	151.48±2.25 f	1.66±0.05 e	220.93±2.63 b	1.12±0.01 c
AN₂₀	240	105.42±5.61 de	2.15±0.10 cde	157.12±2.19 cde	1.71±0.02 de	219.55±1.44 b	1.10±0.01 cd
F值F-value
品种Variety(V)		142.204^**	19.829^**	198.183^**	178.999^**	224.359^**	6.562^ns
氮肥处理Nitrogen(N)		82.725^**	41.964^**	328.554^**	245.86^**	1058.211^**	266.323^**
V×N		3.497^**	2.484^**	7.805^**	5.992^**	2.107^**	7.927^**

品种/减施处理 Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	抽穗期至成熟期氮素转运量 Nitrogen transport/(kg·hm^-2)		抽穗期至成熟期氮素转运率 Nitrogen transfer rate/%		成熟期穗部氮素增加量 Increase of nitrogen/(kg·hm^-2)
品种/减施处理 Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	2019	2020	2019	2020	2019	2020
丰粳3227 Fengjing 3227
0N	0	38.22±2.28 e	46.13±1.27 g	52.20±2.13 a	55.29±1.13 b	81.09±3.92 e	85.94±4.37 f
CN	300	87.80±2.07 a	105.45±1.57 a	53.83±1.20 a	60.37±0.59 a	131.52±3.43 a	149.60±1.93 a
BN₁₀	270	75.37±3.85 b	87.73±4.14 bc	50.34±2.08 a	53.42±1.29 bcd	129.06±2.61 ab	139.39±1.42 b
TN₁₀	270	82.04±8.70 ab	80.18±3.03 cd	52.02±2.63 a	49.95±1.37 cde	128.14±1.64 abc	132.10±1.20 cde
SPN₁₀	270	84.22±2.91 ab	94.90±2.35 b	53.01±0.91 a	54.59±0.86 bc	128.61±4.37 abc	139.58±4.95 b
SSN₁₀	270	61.66±1.93 c	77.40±1.39 de	44.83±0.56 b	49.46±1.73 de	127.13±1.52 abc	137.74±2.38 bc
AN₁₀	270	64.39±2.77 c	73.47±4.48 def	43.90±1.06 bc	46.46±2.70 e	124.21±1.23 bc	133.13±1.80 cde
BN₂₀	240	47.18±3.02 d	77.13±9.80 de	38.59±2.30 cde	50.10±4.45 cde	127.42±3.32 abc	133.94±2.59 cd
TN₂₀	240	47.31±6.40 d	69.53±4.66 ef	38.05±3.40 de	46.69±2.31 e	128.23±1.11 abc	133.59±3.11 cd
SPN₂₀	240	49.79±5.98 d	69.41±6.81 ef	39.04±3.16 cde	46.13±2.97 e	122.00±2.13 cd	130.06±0.75 de
SSN₂₀	240	51.18±1.80 d	65.10±4.53 f	39.69±0.40 bcd	45.43±2.05 e	126.67±1.31 abc	131.37±0.60 de
AN₂₀	240	43.12±2.74 de	70.94±1.56 ef	33.68±1.69 e	46.31±0.53 e	117.48±3.23 d	127.56±2.90 e
淮稻5号 Huaidao 5
0N	0	33.67±5.78 e	49.83±0.85 d	45.53±5.53 a	55.45±1.52 a	74.88±1.89 c	76.91±0.99 f
CN	300	69.90±3.78 a	95.21±5.97 a	42.83±13.8 ab	51.29±2.44 ab	112.38±1.16 ab	124.47±4.64 ab
BN₁₀	270	53.36±2.87 bc	68.93±6.45 bc	36.64±1.12 cd	42.06±3.61 c	114.46±1.45 ab	119.68±2.48 bc
TN₁₀	270	58.70±1.93 b	69.44±6.45 b	39.84±1.17 bc	43.17±2.66 c	115.74±3.05 a	119.41±4.27 bc
SPN₁₀	270	48.87±3.69 c	66.32±3.26 bc	34.70±2.28 cde	39.82±1.61 c	114.63±1.39 ab	116.69±2.96 c
SSN₁₀	270	45.08±3.01 cd	65.82±3.15 bc	32.86±1.67 def	40.84±1.08 c	113.48±5.29 ab	119.06±2.02 bc
AN₁₀	270	70.72±4.81 a	90.14±3.77 a	43.57±2.51 ab	49.66±1.48 b	113.11±3.09 ab	125.20±1.06 a
BN₂₀	240	32.83±5.92 e	61.65±2.72 bc	26.06±3.60 gh	40.22±0.95 c	110.07±0.90 ab	110.18±2.59 de
TN₂₀	240	29.39±6.33 e	66.62±3.31 bc	23.49±4.19 h	41.85±2.06 c	107.77±3.29 b	108.96±2.25 de
SPN₂₀	240	35.28±1.72 de	59.83±1.14 c	28.07±1.01 fgh	39.07±0.65 c	113.27±2.07 ab	108.19±2.00 e
SSN₂₀	240	37.59±0.94 de	64.11±1.74 bc	29.57±0.76 efg	41.49±0.99 c	111.90±2.32 ab	110.79±1.00 de
AN₂₀	240	33.14±3.89 e	61.39±4.44 bc	26.71±2.50 gh	40.46±2.71 c	112.89±1.52 ab	114.40±3.79 cd
扬辐粳8号Yangfujing 8
0N	0	33.46±2.36 cd	28.67±1.48 c	44.16±1.98 a	36.75±1.19 a	68.54±2.74 c	66.07±2.65 c
CN	300	53.58±2.93 a	52.43±3.08 a	33.55±1.64 b	32.35±1.61 b	100.38±1.33 ab	100.89±3.89 ab
BN₁₀	270	40.33±5.55 bc	36.65±4.27 bc	27.70±3.21 cde	24.76±2.61 d	96.34±1.09 b	101.02±1.34 ab
TN₁₀	270	46.50±1.72 ab	39.76±1.49 b	31.30±0.93 bc	26.47±0.38 d	100.62±1.48 ab	101.07±0.87 ab
SPN₁₀	270	41.32±7.18 bc	35.27±1.85 bc	28.71±4.47 bcd	24.42±1.24 d	101.90±8.08 ab	103.33±2.78 a
SSN₁₀	270	48.96±4.68 ab	49.62±2.88 a	31.90±2.79 bc	31.31±1.78 bc	99.00±2.13 ab	103.33±4.00 a
AN₁₀	270	40.25±2.76 bc	35.01±7.17 bc	28.30±1.67 bcd	24.70±5.19 d	104.15±4.42 a	102.45±5.78 a
BN₂₀	240	30.21±4.53 de	36.13±2.02 bc	23.39±2.90 def	25.90±1.34 d	97.55±1.56 ab	99.08±1.06 ab
TN₂₀	240	32.61±4.17 cd	37.85±6.01 bc	25.37±2.69 de	27.62±4.06 cd	103.78±1.39 a	103.34±3.77 a
SPN₂₀	240	21.24±0.99 e	35.68±4.07 bc	17.38±0.93 g	25.43±2.15 d	97.41±3.62 ab	99.10±1.71 ab
SSN₂₀	240	22.89±7.26 e	30.88±0.63 bc	18.62±5.11 fg	22.90±0.64 d	100.66±1.38 ab	100.33±2.09 ab
AN₂₀	240	28.77±3.00 de	33.00±1.76 bc	22.55±1.96 efg	23.78±1.14 d	98.78±0.72 ab	95.43±1.09 b
F值F-value
品种Variety(V)		326.78**	842.881^**	390.92**	654.203^**	1230.22**	191.522^**
氮肥处理Nitrogen(N)		57.33**	36.976^**	42.1*	20.663^**	87.06**	144.074^**
V×N		6.28**	7.275^**	3.85**	3.779^**	2.82**	5.864^**

[1]	GUO Zhan, ZHANG Yunbo. Research Progress in Physiological，Biochemical Responses of Rice to Drought Stress and Its Molecular Regulation [J]. Chinese Journal OF Rice Science, 2024, 38(4): 335-349.
[2]	WEI Huanhe, MA Weiyi, ZUO Boyuan, WANG Lulu, ZHU Wang, GENG Xiaoyu, ZHANG Xiang, MENG Tianyao, CHEN Yinglong, GAO Pinglei, XU Ke, HUO Zhongyang, DAI Qigen. Research Progress in the Effect of Salinity, Drought, and Their Combined Stresses on Rice Yield and Quality Formation [J]. Chinese Journal OF Rice Science, 2024, 38(4): 350-363.
[3]	LÜ Zhou, YI Binghuai, CHEN Pingping, ZHOU Wenxin, TANG Wenbang, YI Zhenxie. Effects of Nitrogen Application Rate and Transplanting Density on Yield Formation of Small Seed Hybrid Rice [J]. Chinese Journal OF Rice Science, 2024, 38(4): 422-436.
[4]	ZHAO Yiting, XIE Keran, GAO Ti, CUI Kehui. Effects of Drought Priming During Tillering Stage on Panicle Development and Yield Formation Under High Temperature During Panicle Initiation Stage in Rice [J]. Chinese Journal OF Rice Science, 2024, 38(3): 277-289.
[5]	ZHOU Tian, WU Shaohua, KANG Jianhong, WU Hongliang, YANG Shenglong, WANG Xingqiang, LI Yu, HUANG Yufeng. Effects of Planting Patterns on Starch Content and Activities of Key Starch Enzymes in Rice Grains [J]. Chinese Journal OF Rice Science, 2024, 38(3): 303-315.
[6]	LIU Huimin, ZHOU Jieqiang, HU Yuanyi, TIAN Yan, LEI Bin, LI Jianwu, WEI Zhongwei, TANG Wenbang. Super-high Yield Characteristics of Two-line Hybrid Rice Zhuoliangyou 1126 [J]. Chinese Journal OF Rice Science, 2024, 38(2): 160-171.
[7]	PENG Xianlong, DONG Qiang, ZHANG Chen, LI Pengfei, LI Bolin, LIU Zhilei, YU Cailian. Effects of Straw Return Rate on Soil Reducing Substances and Rice Growth Under Different Soil Conditions [J]. Chinese Journal OF Rice Science, 2024, 38(2): 198-210.
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品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	拔节期 Jointing period		抽穗期 Heading date		成熟期 Maturity
品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%
丰粳3227 Fengjing 3227
0N	0	76.44±2.30 f	1.73±0.04 g	86.63±1.78 f	1.21±0.01 f	129.49±4.96 g	0.82±0.02 d
CN	300	133.99±3.01 a	2.32±0.03 a	190.36±1.67 a	1.87±0.01 a	234.08±0.89 a	1.17±0.03 a
BN₁₀	270	120.48±1.39 b	2.21±0.03 bc	175.15±2.42 c	1.82±0.01 ab	228.85±1.47 bc	1.14±0.00 bc
TN₁₀	270	118.79±3.05 b	2.18±0.03 cd	182.17±7.00 b	1.80±0.02 b	228.27±2.34 bcd	1.14±0.01 bc
SPN₁₀	270	129.90±4.80 a	2.26±0.02 ab	186.10±5.35 ab	1.82±0.01 ab	230.48±2.10 ab	1.16±0.02 ab
SSN₁₀	270	118.04±2.98 b	2.15±0.04 cde	162.29±3.23 d	1.71±0.02 c	227.76±1.93 bcd	1.14±0.01 bc
AN₁₀	270	116.00±0.37 bc	2.14±0.01 cde	169.60±2.38 c	1.79±0.02 b	229.43±1.41 bc	1.16±0.01 ab
BN₂₀	240	106.57±1.86 de	2.07±0.04 e	144.01±1.54 e	1.61±0.03 e	224.26±0.31 def	1.12±0.00 c
TN₂₀	240	106.80±2.41 de	2.14±0.02 cde	144.11±6.43 e	1.62±0.04 e	225.03±2.50 cde	1.14±0.01 bc
SPN₂₀	240	108.17±3.40 de	2.10±0.06 de	147.73±5.15 e	1.64±0.02 de	219.94±1.44 f	1.14±0.01 bc
SSN₂₀	240	111.12±3.86 cd	2.07±0.04 e	146.52±3.46 e	1.68 ±0.02 cd	222.00±3.07 ef	1.12±0.02 c
AN₂₀	240	103.97±1.30 e	1.99±0.04 f	147.13±2.68 e	1.69±1.69 cd	221.50±0.82 ef	1.12±0.01 c
淮稻5号 Huaidao 5
0N	0	82.97±0.79 e	1.88±0.01 f	85.70±3.89 f	1.32±0.05 f	126.91±2.29 d	0.91±0.01 e
CN	300	136.65±1.94 a	2.40±0.02 a	188.39±4.03 a	1.94±0.01 a	230.87±1.42 a	1.15±0.01 abc
BN₁₀	270	119.31±3.14 b	2.32±0.02 bc	166.66±3.73 bc	1.88±0.03 bc	227.76±1.62 ab	1.16±0.01 a
TN₁₀	270	120.68±0.50 b	2.32±0.01 bc	168.69±0.94 b	1.85±0.03 c	225.74±2.05 b	1.13±0.01 cd
SPN₁₀	270	121.88±3.05 b	2.29±0.07 c	160.82±1.22 cd	1.78±0.01 d	226.58±2.05 ab	1.16±0.01 ab
SSN₁₀	270	122.61±3.69 b	2.28±0.04 c	158.50±3.47 d	1.68±0.02 e	226.91±2.89 ab	1.16±0.01 abc
AN₁₀	270	132.96±0.79 a	2.38±0.01 ab	186.11±1.74 a	1.92±0.03 ab	228.51±0.64 ab	1.14±0.02 abcd
BN₂₀	240	108.88±3.82 cd	2.10±0.03 e	141.23±5.62 e	1.65±0.02 e	218.47±2.00 c	1.12±0.01 d
TN₂₀	240	112.28±1.32 c	2.24±0.03 cd	141.14±5.10 e	1.68±0.07 e	219.51±0.61 c	1.13±0.00 bcd
SPN₂₀	240	107.43±7.05 cd	2.17±0.06 de	141.63±1.75 e	1.69±0.00 e	219.61±0.89 c	1.14±0.01 abcd
SSN₂₀	240	105.68±2.47 d	2.11±0.03 e	144.35±1.34 e	1.67±0.02 e	218.66±1.04 c	1.13±0.01 cd
AN₂₀	240	109.82±0.66 cd	2.16±0.01 e	140.57±3.17 e	1.65±0.02 e	220.31±1.95 c	1.14±0.01 abcd
扬辐粳8号Yangfujing 8
0N	0	65.37±1.59 d	1.67±0.03 e	87.93±2.24 g	1.20±0.02 e	123.01±2.29 d	0.81±0.01 f
CN	300	125.57±2.52 a	2.26±0.02 a	181.52±2.58 a	1.82±0.03 a	228.32±1.63 a	1.18±0.01 a
BN₁₀	270	111.61±1.24 b	2.23±0.05 ab	164.08±2.97 cd	1.73±0.04 bc	220.08±1.86 b	1.14±0.01 cd
TN₁₀	270	107.11±1.74 b	2.16±0.02 bc	166.32±1.23 c	1.75±0.01 b	220.44±1.22 b	1.17±0.00 ab
SPN₁₀	270	108.42±1.50 b	2.13±0.06 c	160.78±2.82 cd	1.69±0.03 c	221.36±2.43 b	1.17±0.02 ab
SSN₁₀	270	124.55±2.63 a	2.29±0.06 a	174.14±2.83 b	1.76±0.02 b	224.18±1.73 b	1.16±0.01 bc
AN₁₀	270	111.69±1.92 b	2.17±0.01 bc	157.76±1.21 d	1.73±0.00 bc	221.66±2.60 b	1.13±0.02 cde
BN₂₀	240	98.97±1.41 c	2.03±0.04 d	143.33±3.39 e	1.61±0.02 d	210.67±0.72 c	1.11±0.01 de
TN₂₀	240	97.80±3.48 c	2.03±0.07 d	142.26±2.41 ef	1.59±0.01 d	213.42±1.00 c	1.12±0.01 de
SPN₂₀	240	97.91±4.50 c	2.00±0.03 d	136.52±1.46 ef	1.61±0.02 d	212.71±3.63 c	1.11±0.01 e
SSN₂₀	240	99.82±1.45 c	2.04±0.01 d	135.38±5.52 f	1.57±0.04 d	213.16±2.31 c	1.11±0.01 de
AN₂₀	240	97.37±1.53 c	2.01±0.03 d	141.99±2.64 ef	1.61±0.01 d	211.99±2.11 c	1.11±0.01 de

品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	拔节期 Jointing period		抽穗期 Heading date		成熟期 Maturity
品种/减施处理Cultivar/treatment	施氮量 Total nitrogen level/(t·hm^-2)	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%	植株氮积累量Nitrogen accumulation /(kg·hm^-2)	植株含氮率Nitrogen content /%
丰粳3227 Fengjing 3227
0N	0	76.44±2.30 f	1.73±0.04 g	86.63±1.78 f	1.21±0.01 f	129.49±4.96 g	0.82±0.02 d
CN	300	133.99±3.01 a	2.32±0.03 a	190.36±1.67 a	1.87±0.01 a	234.08±0.89 a	1.17±0.03 a
BN₁₀	270	120.48±1.39 b	2.21±0.03 bc	175.15±2.42 c	1.82±0.01 ab	228.85±1.47 bc	1.14±0.00 bc
TN₁₀	270	118.79±3.05 b	2.18±0.03 cd	182.17±7.00 b	1.80±0.02 b	228.27±2.34 bcd	1.14±0.01 bc
SPN₁₀	270	129.90±4.80 a	2.26±0.02 ab	186.10±5.35 ab	1.82±0.01 ab	230.48±2.10 ab	1.16±0.02 ab
SSN₁₀	270	118.04±2.98 b	2.15±0.04 cde	162.29±3.23 d	1.71±0.02 c	227.76±1.93 bcd	1.14±0.01 bc
AN₁₀	270	116.00±0.37 bc	2.14±0.01 cde	169.60±2.38 c	1.79±0.02 b	229.43±1.41 bc	1.16±0.01 ab
BN₂₀	240	106.57±1.86 de	2.07±0.04 e	144.01±1.54 e	1.61±0.03 e	224.26±0.31 def	1.12±0.00 c
TN₂₀	240	106.80±2.41 de	2.14±0.02 cde	144.11±6.43 e	1.62±0.04 e	225.03±2.50 cde	1.14±0.01 bc
SPN₂₀	240	108.17±3.40 de	2.10±0.06 de	147.73±5.15 e	1.64±0.02 de	219.94±1.44 f	1.14±0.01 bc
SSN₂₀	240	111.12±3.86 cd	2.07±0.04 e	146.52±3.46 e	1.68 ±0.02 cd	222.00±3.07 ef	1.12±0.02 c
AN₂₀	240	103.97±1.30 e	1.99±0.04 f	147.13±2.68 e	1.69±1.69 cd	221.50±0.82 ef	1.12±0.01 c
淮稻5号 Huaidao 5
0N	0	82.97±0.79 e	1.88±0.01 f	85.70±3.89 f	1.32±0.05 f	126.91±2.29 d	0.91±0.01 e
CN	300	136.65±1.94 a	2.40±0.02 a	188.39±4.03 a	1.94±0.01 a	230.87±1.42 a	1.15±0.01 abc
BN₁₀	270	119.31±3.14 b	2.32±0.02 bc	166.66±3.73 bc	1.88±0.03 bc	227.76±1.62 ab	1.16±0.01 a
TN₁₀	270	120.68±0.50 b	2.32±0.01 bc	168.69±0.94 b	1.85±0.03 c	225.74±2.05 b	1.13±0.01 cd
SPN₁₀	270	121.88±3.05 b	2.29±0.07 c	160.82±1.22 cd	1.78±0.01 d	226.58±2.05 ab	1.16±0.01 ab
SSN₁₀	270	122.61±3.69 b	2.28±0.04 c	158.50±3.47 d	1.68±0.02 e	226.91±2.89 ab	1.16±0.01 abc
AN₁₀	270	132.96±0.79 a	2.38±0.01 ab	186.11±1.74 a	1.92±0.03 ab	228.51±0.64 ab	1.14±0.02 abcd
BN₂₀	240	108.88±3.82 cd	2.10±0.03 e	141.23±5.62 e	1.65±0.02 e	218.47±2.00 c	1.12±0.01 d
TN₂₀	240	112.28±1.32 c	2.24±0.03 cd	141.14±5.10 e	1.68±0.07 e	219.51±0.61 c	1.13±0.00 bcd
SPN₂₀	240	107.43±7.05 cd	2.17±0.06 de	141.63±1.75 e	1.69±0.00 e	219.61±0.89 c	1.14±0.01 abcd
SSN₂₀	240	105.68±2.47 d	2.11±0.03 e	144.35±1.34 e	1.67±0.02 e	218.66±1.04 c	1.13±0.01 cd
AN₂₀	240	109.82±0.66 cd	2.16±0.01 e	140.57±3.17 e	1.65±0.02 e	220.31±1.95 c	1.14±0.01 abcd
扬辐粳8号Yangfujing 8
0N	0	65.37±1.59 d	1.67±0.03 e	87.93±2.24 g	1.20±0.02 e	123.01±2.29 d	0.81±0.01 f
CN	300	125.57±2.52 a	2.26±0.02 a	181.52±2.58 a	1.82±0.03 a	228.32±1.63 a	1.18±0.01 a
BN₁₀	270	111.61±1.24 b	2.23±0.05 ab	164.08±2.97 cd	1.73±0.04 bc	220.08±1.86 b	1.14±0.01 cd
TN₁₀	270	107.11±1.74 b	2.16±0.02 bc	166.32±1.23 c	1.75±0.01 b	220.44±1.22 b	1.17±0.00 ab
SPN₁₀	270	108.42±1.50 b	2.13±0.06 c	160.78±2.82 cd	1.69±0.03 c	221.36±2.43 b	1.17±0.02 ab
SSN₁₀	270	124.55±2.63 a	2.29±0.06 a	174.14±2.83 b	1.76±0.02 b	224.18±1.73 b	1.16±0.01 bc
AN₁₀	270	111.69±1.92 b	2.17±0.01 bc	157.76±1.21 d	1.73±0.00 bc	221.66±2.60 b	1.13±0.02 cde
BN₂₀	240	98.97±1.41 c	2.03±0.04 d	143.33±3.39 e	1.61±0.02 d	210.67±0.72 c	1.11±0.01 de
TN₂₀	240	97.80±3.48 c	2.03±0.07 d	142.26±2.41 ef	1.59±0.01 d	213.42±1.00 c	1.12±0.01 de
SPN₂₀	240	97.91±4.50 c	2.00±0.03 d	136.52±1.46 ef	1.61±0.02 d	212.71±3.63 c	1.11±0.01 e
SSN₂₀	240	99.82±1.45 c	2.04±0.01 d	135.38±5.52 f	1.57±0.04 d	213.16±2.31 c	1.11±0.01 de
AN₂₀	240	97.37±1.53 c	2.01±0.03 d	141.99±2.64 ef	1.61±0.01 d	211.99±2.11 c	1.11±0.01 de

品种/减施处理 Cultivar/treatment	氮素吸收利用率 Nitrogen apparent recovery efficiency/%		氮肥偏生产力 Partial factor productivity of nitrogen/(kg·kg^-1)
品种/减施处理 Cultivar/treatment	2019	2020	2019	2020
丰粳3227 Fengjing 3227
CN	34.95±0.30 e	35.16±0.15 d	38.37±0.35 f	38.23±0.40 d
BN₁₀	36.90±0.54 cd	37.55±0.79 bc	39.81±0.44 e	40.74±0.04 c
TN₁₀	36.69±0.86 d	36.08±0.65 cd	39.94±0.53 e	40.75±0.11 c
SPN₁₀	37.50±0.78 bcd	39.63±0.65 a	41.59±0.99 cd	42.40±0.24 b
SSN₁₀	36.50±0.72 d	37.70±0.94 b	40.10±0.60 e	40.49±0.29 c
AN₁₀	37.12±0.52 bcd	37.88±0.59 b	40.49±1.04 de	40.20±0.34 c
BN₂₀	39.60±0.13 a	39.07±1.15 ab	43.83±0.61 ab	43.94±0.25 ab
TN₂₀	39.92±1.04 a	39.85±0.66 a	43.17±0.73 b	43.35±0.69 ab
SPN₂₀	37.80±0.60 bcd	39.68±0.51 a	44.68±0.30 a	44.46±0.70 a
SSN₂₀	38.66±1.28 ab	38.30±1.03 ab	43.08±0.21 b	42.55±0.55 b
AN₂₀	38.45±0.34 abc	38.60±0.40 ab	41.82±0.48 c	43.01±1.67 ab
淮稻5号 Huaidao 5
CN	34.82±0.47 d	35.32±0.25 c	35.72±0.37 d	36.24±0.12 d
BN₁₀	37.54±0.60 abc	37.91±0.70 ab	37.95±0.18 bc	38.74±0.09 c
TN₁₀	36.79±0.76 c	36.59±1.68 bc	37.86±0.46 bc	38.72±0.29 c
SPN₁₀	37.10±0.76 bc	38.25±0.69 ab	38.17±0.32 bc	36.62±1.08 d
SSN₁₀	37.22±1.07 bc	38.02±0.80 ab	37.52±0.35 c	38.70±0.17 c
AN₁₀	37.82±0.24 abc	38.92±0.63 a	39.11±0.23 b	39.94±0.28 bc
BN₂₀	38.36±0.84 abc	37.08±0.25 b	41.26±0.44 a	42.14±0.47 a
TN₂₀	38.79±0.25 ab	36.90±0.93 bc	40.64±0.35 a	42.45±0.37 a
SPN₂₀	38.84±0.37 ab	36.75±0.56 bc	40.96±1.89 a	39.59±1.09 bc
SSN₂₀	38.44±0.43 abc	36.74±0.65 bc	40.68±0.61 a	40.98±1.66 ab
AN₂₀	39.13±0.81 a	38.32±0.63 ab	40.81±0.55 a	41.14±1.42 ab
扬辐粳8号 Yangfujing 8
CN	34.91±0.54 d	34.82±0.37 c	29.11±0.55 e	29.36±0.28 d
BN₁₀	37.82±0.69 c	37.44 ±0.80 ab	30.82±0.55 d	30.96±0.09 bc
TN₁₀	37.95±0.45 bc	37.66 ±0.91 ab	30.57±0.67 d	31.00±0.02 bc
SPN₁₀	38.29±0.90 abc	37.19 ±0.22 ab	30.81±0.41 d	30.06±1.05 cd
SSN₁₀	39.34±0.64 abc	38.79 ±0.70 a	31.75±0.44 cd	32.54±0.29 ab
AN₁₀	38.40±0.96 abc	38.38 ±0.31 ab	30.67±0.37 d	33.63±0.67 a
BN₂₀	38.62±0.30 abc	36.79 ±0.70 b	33.67±0.16 ab	31.04±0.04 bc
TN₂₀	39.77±0.42 a	38.15 ±0.28 ab	34.07±0.31 a	33.71±0.59 a
SPN₂₀	39.47±1.51 abc	38.08 ±0.75 ab	32.85±0.62 abc	31.79±0.96 b
SSN₂₀	39.66±0.96 ab	38.44 ±0.93 ab	33.54±0.36 ab	33.77±0.33 a
AN₂₀	39.17±0.88 abc	38.08±0.30 ab	32.36±0.62 bc	32.10±1.15 b
F值F-value
品种Variety(V)	16.2^*	22.224^**	3170.17^**	1568.163^**
氮肥处理Nitrogen(N)	17.2^*	10.481^**	46.25^**	31.383^**

品种/减施处理 Cultivar/treatment	氮素吸收利用率 Nitrogen apparent recovery efficiency/%		氮肥偏生产力 Partial factor productivity of nitrogen/(kg·kg^-1)
品种/减施处理 Cultivar/treatment	2019	2020	2019	2020
丰粳3227 Fengjing 3227
CN	34.95±0.30 e	35.16±0.15 d	38.37±0.35 f	38.23±0.40 d
BN₁₀	36.90±0.54 cd	37.55±0.79 bc	39.81±0.44 e	40.74±0.04 c
TN₁₀	36.69±0.86 d	36.08±0.65 cd	39.94±0.53 e	40.75±0.11 c
SPN₁₀	37.50±0.78 bcd	39.63±0.65 a	41.59±0.99 cd	42.40±0.24 b
SSN₁₀	36.50±0.72 d	37.70±0.94 b	40.10±0.60 e	40.49±0.29 c
AN₁₀	37.12±0.52 bcd	37.88±0.59 b	40.49±1.04 de	40.20±0.34 c
BN₂₀	39.60±0.13 a	39.07±1.15 ab	43.83±0.61 ab	43.94±0.25 ab
TN₂₀	39.92±1.04 a	39.85±0.66 a	43.17±0.73 b	43.35±0.69 ab
SPN₂₀	37.80±0.60 bcd	39.68±0.51 a	44.68±0.30 a	44.46±0.70 a
SSN₂₀	38.66±1.28 ab	38.30±1.03 ab	43.08±0.21 b	42.55±0.55 b
AN₂₀	38.45±0.34 abc	38.60±0.40 ab	41.82±0.48 c	43.01±1.67 ab
淮稻5号 Huaidao 5
CN	34.82±0.47 d	35.32±0.25 c	35.72±0.37 d	36.24±0.12 d
BN₁₀	37.54±0.60 abc	37.91±0.70 ab	37.95±0.18 bc	38.74±0.09 c
TN₁₀	36.79±0.76 c	36.59±1.68 bc	37.86±0.46 bc	38.72±0.29 c
SPN₁₀	37.10±0.76 bc	38.25±0.69 ab	38.17±0.32 bc	36.62±1.08 d
SSN₁₀	37.22±1.07 bc	38.02±0.80 ab	37.52±0.35 c	38.70±0.17 c
AN₁₀	37.82±0.24 abc	38.92±0.63 a	39.11±0.23 b	39.94±0.28 bc
BN₂₀	38.36±0.84 abc	37.08±0.25 b	41.26±0.44 a	42.14±0.47 a
TN₂₀	38.79±0.25 ab	36.90±0.93 bc	40.64±0.35 a	42.45±0.37 a
SPN₂₀	38.84±0.37 ab	36.75±0.56 bc	40.96±1.89 a	39.59±1.09 bc
SSN₂₀	38.44±0.43 abc	36.74±0.65 bc	40.68±0.61 a	40.98±1.66 ab
AN₂₀	39.13±0.81 a	38.32±0.63 ab	40.81±0.55 a	41.14±1.42 ab
扬辐粳8号 Yangfujing 8
CN	34.91±0.54 d	34.82±0.37 c	29.11±0.55 e	29.36±0.28 d
BN₁₀	37.82±0.69 c	37.44 ±0.80 ab	30.82±0.55 d	30.96±0.09 bc
TN₁₀	37.95±0.45 bc	37.66 ±0.91 ab	30.57±0.67 d	31.00±0.02 bc
SPN₁₀	38.29±0.90 abc	37.19 ±0.22 ab	30.81±0.41 d	30.06±1.05 cd
SSN₁₀	39.34±0.64 abc	38.79 ±0.70 a	31.75±0.44 cd	32.54±0.29 ab
AN₁₀	38.40±0.96 abc	38.38 ±0.31 ab	30.67±0.37 d	33.63±0.67 a
BN₂₀	38.62±0.30 abc	36.79 ±0.70 b	33.67±0.16 ab	31.04±0.04 bc
TN₂₀	39.77±0.42 a	38.15 ±0.28 ab	34.07±0.31 a	33.71±0.59 a
SPN₂₀	39.47±1.51 abc	38.08 ±0.75 ab	32.85±0.62 abc	31.79±0.96 b
SSN₂₀	39.66±0.96 ab	38.44 ±0.93 ab	33.54±0.36 ab	33.77±0.33 a
AN₂₀	39.17±0.88 abc	38.08±0.30 ab	32.36±0.62 bc	32.10±1.15 b
F值F-value
品种Variety(V)	16.2^*	22.224^**	3170.17^**	1568.163^**
氮肥处理Nitrogen(N)	17.2^*	10.481^**	46.25^**	31.383^**