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8 氮肥缓速配施对2种机插杂交稻产量及其构成的影响

Table 8 Effects of different machine-transplanted methods and N treatments on rice yield and its components

年份 Year 处理 Treatment 有效穗数 Panicle (×104 hm-2) 每穗粒数 No. of spikelet per panicle 结实率 Grain filling percentage (%) 千粒重 1000-grain weight (g) 产量 Yield ( kg·hm-2) 单穗重 Panicle weight (g) 收获指数 Harvest index (%) 2016 M1N0 164.80±3.20c 170.34±1.35d 92.68±0.18a 31.59±0.01a 7647.32±191.73c 4.99±0.04c 61.09a M1N1 259.21±3.64a 190.43±2.04b 87.52±0.55c 30.83±0.17c 12057.53±175.03b 5.14±0.06b 58.72b M1N2 250.16±0.24b 183.67±3.74c 89.33±0.46b 30.73±0.16c 11665.74±182.51b 5.04±0.10bc 57.59b M1N3 263.95±4.42a 197.27±2.65a 87.88±0.36c 31.25±0.10b 12608.57±197.97a 5.42±0.06a 59.35ab M2N0 173.75±1.50b 162.35±1.50c 89.34±0.04a 30.87±0.14a 7066.64±123.93c 4.48±0.04c 60.45a M2N1 237.64±3.37a 186.55±2.03a 86.04±0.65b 30.60±0.09b 10830.51±272.57b 4.91±0.05ab 55.49b M2N2 235.83±1.80a 179.36±1.84b 86.82±0.31b 30.53±0.20b 10501.40±159.28b 4.75±0.06b 54.82b M2N3 240.56±0.92a 191.68±1.88a 86.02±0.19b 30.69±0.06ab 11410.96±151.36a 5.06±0.05a 55.09b M 110.55** 34.10* 78.34* 571.60** 272.61** 756.27** 104.74** N 334.08** 53.39** 84.00** 27.84** 267.08** 23.22** 11.89** M×N 11.86** 0.31ns 3.69* 6.00** 1.43ns 1.92ns 1.70ns 2017 M1N0 160.79±2.87b 165.62±2.64c 96.26±0.67a 31.31±0.03a 7336.30±169.64d 4.99±0.10b 59.36a M1N1 260.10±5.46a 175.54±2.09b 94.66±0.99ab 29.71±0.12bc 11636.94±176.42b 4.94±0.10bc 57.50bc M1N2 252.80±5.63a 171.46±2.36b 91.87±3.56b 29.64±0.20c 11191.95±256.75c 4.73±0.21c 56.25c M1N3 256.03±3.04a 183.52±1.67a 94.95±0.67ab 30.14±0.12b 12178.10±187.51a 5.25±0.10a 57.79ab M2N0 164.35±0.93c 152.05±1.35c 97.08±0.43a 31.25±0.37a 6889.11±145.79c 4.62±0.04b 58.90a M2N1 243.06±4.88ab 171.69±1.68b 93.85±1.01ab 29.78±0.29b 10794.88±111.85ab 4.82±0.05ab 55.25b M2N2 234.95±0.23b 166.68±3.02b 95.78±0.28a 29.94±0.06b 10527.79±198.08b 4.78±0.11ab 55.14b M2N3 247.44±2.61a 178.14±2.46a 91.78±1.51b 30.09±0.21b 11242.41±171.13a 4.91±0.06a 54.71b M 30.90* 7.62ns 0.04ns 1.02ns 52.26* 4.19ns 40.34* N 239.15** 42.39** 1.96ns 23.35** 233.49** 4.42* 11.55** M×N 3.14ns 2.49ns 1.99ns 0.35ns 0.61ns 2.11ns 1.65ns