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6 氮肥缓速配施对2种机插杂交稻氮素转运特性的影响

Table 6 Effects of different machine-transplanted methods and N treatments on N transport characteristics

年份 Year 处理 Treatment 氮素转运率 N transportation efficiency (%) 氮素转运对穗部的贡献率 Contribution rate of N transportation (%) 干物质生产效率 N use efficiency for biomass production (kg·kg-1) 稻谷生产效率 N use efficiency for grain yield (kg·kg-1) 氮素收获指数 N harvest index (%) 茎鞘 Stem-sheath 叶片 Leaf 2016 M1N0 27.98±0.75c 66.64±1.04c 44.91±1.30c 139.03±1.01b 55.33±1.55a 73.21±0.39a M1N1 50.08±0.81a 69.39±0.71b 89.47±1.50a 132.92±0.26c 51.46±0.51c 68.72±0.40c M1N2 44.89±1.08ab 68.38±0.58b 77.65±1.10b 145.64±0.71a 54.18±0.98ab 69.68±0.11bc M1N3 42.00±0.51b 74.34±1.24a 91.29±2.72a 130.10±0.60c 52.46±0.80bc 70.02±0.37b M2N0 13.36±2.71c 52.54±0.46d 30.26±1.32d 129.50±2.29a 54.07±0.52a 69.81±1.19a M2N1 23.01±2.74b 65.23±0.68a 73.50±1.97b 122.54±2.90b 49.17±1.28b 63.89±0.17b M2N2 9.69±1.74c 62.29±0.73b 54.60±0.82c 126.96±0.23a 50.15±0.57b 63.62±0.44b M2N3 35.79±3.16a 59.85±0.77c 86.67±1.76a 127.23±0.25a 48.49±0.23b 61.06±0.04c M 441.98** 262.13** 171.53** 202.50** 58.86* 629.25** N 30.67** 41.48** 599.12** 14.82** 11.31** 53.50** M×N 17.87** 22.91** 16.72** 8.85** 1.24ns 10.18** 2017 M1N0 25.57±2.70c 53.20±0.98d 32.27±0.90c 146.40±4.18a 50.73±0.11a 71.58±0.51a M1N1 56.20±0.47a 62.66±1.12c 79.06±2.38a 145.45±0.19a 47.20±0.45c 69.53±0.10b M1N2 36.46±1.85b 66.76±0.54b 65.39±2.13b 149.30±1.70a 51.58±0.75a 69.73±0.29b M1N3 38.16±1.14b 72.64±0.65a 78.23±2.44a 132.69±0.70b 48.92±1.01b 69.88±0.33b M2N0 3.92±2.55d 41.78±1.23d 17.77±0.09c 128.86±4.39ab 51.85±0.29a 69.05±0.74a M2N1 18.14±2.70b 61.41±0.06b 58.17±2.38b 124.22±0.51b 47.52±0.45b 64.89±0.44b M2N2 10.36±0.70c 65.68±0.92a 57.46±0.98b 127.83±2.49ab 50.14±0.65a 64.66±0.68b M2N3 30.34±1.91a 60.79±0.42b 71.38±1.26a 134.26±1.16a 47.62±0.33b 63.36±0.53c M 146.60** 391.46** 72.26* 37.02* 0.35ns 224.07** N 55.92** 212.10** 392.87** 1.94ns 23.48** 19.23** M×N 20.93** 23.94** 8.37** 10.32** 2.49ns 4.66*