氮肥缓速配施对机插杂交稻氮素利用特征的影响

吕腾飞,谌洁,马鹏,代邹,杨志远,徐徽,郑传刚,马均

Effects of Combined Application of Slow Release Nitrogen Fertilizer and Urea on the Nitrogen Utilization Characteristics in Machine- Transplanted Hybrid Rice

LÜ TengFei,SHEN Jie,MA Peng,DAI Zou,YANG ZhiYuan,XU Hui,ZHENG ChuanGang,MA Jun

表4 氮肥缓速配施对2种机插杂交稻不同生育阶段氮素积累速率与比例的影响

Table 4 Effects of different machine-transplanted and N treatments on N accumulation rate and ratio in different growth periods

年份 Year 处理 Treatment 氮素积累速率 N accumulation rate (kg·hm-2·d-1) 氮素积累比例 N accumulation ratio (%) 播种—拔节 Sowing to elongation 拔节—抽穗 Elongation to heading 抽穗—成熟 Heading to maturity 播种—拔节 Sowing to elongation 拔节—抽穗 Elongation to heading 抽穗—成熟 Heading to maturity 2016 M1N0 0.35±0.01d 2.35±0.03d 0.92±0.03a 19.68±0.30d 47.66±0.87c 32.67±1.06a M1N1 1.12±0.03b 4.77±0.10b 0.28±0.04c 37.16±0.67b 57.01±1.51b 5.83±0.85c M1N2 1.20±0.02a 3.40±0.05c 0.55±0.03b 43.42±0.71a 44.16±0.75d 12.42±0.70b M1N3 0.91±0.03c 5.66±0.08a 0.23±0.07c 29.37±0.86c 66.00±1.04a 4.63±1.48c M2N0 0.52±0.01d 1.26±0.06d 1.08±0.06a 31.17±0.82c 29.90±1.55d 38.93±1.76a M2N1 1.08±0.01b 3.44±0.11b 0.61±0.04b 38.58±0.44b 48.39±1.17b 13.03±0.97c M2N2 1.14±0.01a 2.30±0.05c 1.02±0.03a 43.16±0.75a 33.97±0.37c 22.86±0.43b M2N3 0.97±0.01c 4.65±0.20a 0.30±0.03c 32.73±0.87c 61.20±1.63a 6.07±0.76d M 9.21ns 196.32** 86.12* 190.45** 125.75** 96.84* N 771.49** 506.80** 160.60** 204.77** 255.15** 508.37** M×N 18.15** 1.11ns 11.28** 22.80** 13.20** 9.67** 2017 M1N0 0.40±0.01d 1.66±0.06d 1.40±0.02a 18.90±0.44d 41.31±0.71c 39.79±0.28a M1N1 1.34±0.02b 3.45±0.09b 0.72±0.09c 37.57±0.34b 50.43±1.69b 12.00±1.41c M1N2 1.48±0.03a 2.02±0.07c 1.03±0.07b 47.02±0.67a 33.54±1.02d 19.44±1.39b M1N3 1.21±0.04c 3.76±0.06a 0.74±0.08c 33.49±0.69c 54.31±0.83a 12.21±1.37c M2N0 0.44±0.01c 1.13±0.01d 1.49±0.03a 23.62±0.55d 30.50±0.41c 45.87±0.32a M2N1 1.29±0.02a 2.41±0.10b 1.20±0.08b 40.16±0.48b 38.13±1.78b 21.71±1.44b M2N2 1.34±0.04a 1.89±0.06c 1.15±0.06b 45.21±1.31a 32.41±0.87c 22.38±0.75b M2N3 1.19±0.01b 3.27±0.07a 0.83±0.04c 35.85±0.14c 49.80±0.64a 14.35±0.71c M 7.91ns 113.62** 27.63* 28.89* 61.40* 41.16* N 653.02** 432.46** 40.13** 546.40** 157.13** 358.70** M×N 4.99* 17.03** 4.75* 9.36** 14.64** 6.01**