多元化种植模式下秸秆还田配合水氮管理对水稻产量形成与氮素吸收利用的影响

胡明明, 丁峰, 彭志芸, 向开宏, 李郁, 张宇杰, 杨志远, 孙永健, 马均

Effects of straw returning to field combined with water and N management on rice yield formation and N uptake and utilization under diversified cropping patterns

HU Ming-Ming, DING Feng, PENG Zhi-Yun, XIANG Kai-Hong, LI Yu, ZHANG Yu-Jie, YANG Zhi-Yuan, SUN Yong-Jian, MA Jun

表2 多元化种植模式下秸秆还田配合水氮管理对水稻产量及产量构成因素的影响

Table 2 Effects of straw returning to field combined with water and N management on rice yield and yield components under diversified cropping patterns

处理 Treatment 有效穗数 Effective panicles (×104 hm-2) 每穗颖花数 Spikelets per panicle 结实率 Seed-setting rate (%) 千粒重 1000-grain weight (g) 产量 Yield (kg hm-2) Py W0 N0 90.1 d 225.54 a 93.94 ab 31.97 d 6068.44 c N1 137.3 b 231.66 a 91.38 bc 32.84 bcd 9303.67 ab N2 119.2 c 229.43 a 90.34 c 33.35 abc 8772.68 b 均值Average 115.5 228.81 91.90 32.72 8046.26 W1 N0 91.2 d 221.17 a 95.45 ab 32.23 cd 6149.43 c N1 147.5 a 230.92 a 91.40 bc 33.79 ab 9796.36 a N2 128.8 bc 228.27 a 91.27 c 34.40 a 9698.83 a 均值Average 122.5 226.79 92.71 33.47 8548.21 Px W0 N0 85.9 c 244.59 a 93.17 a 31.49 c 5983.57 b N1 127.7 ab 245.62 a 92.98 a 32.50 ab 9166.53 a N2 122.5 b 242.99 ab 92.34 a 32.98 a 8910.31 a 均值Average 112.0 244.40 92.83 32.32 8020.14 W1 N0 94.4 c 218.67 c 93.31 a 31.92 bc 5990.72 b N1 136.7 a 227.50 abc 92.98 a 32.75 a 9292.24 a N2 136.2 ab 222.92 bc 92.41 a 33.09 a 9200.85 a 均值Average 122.4 223.03 92.90 32.59 8161.27 Pq W0 N0 91.6 c 219.91 a 91.84 a 31.23 c 5215.41 b N1 126.3 ab 221.25 a 90.65 a 32.64 b 8194.23 a N2 117.9 b 220.72 a 88.82 a 33.06 ab 7913.04 a 均值Average 111.9 220.62 90.44 32.31 7107.56 W1 N0 94.0 c 200.20 a 94.94 a 31.68 c 5423.67 b N1 138.4 a 205.83 a 92.41 a 33.53 ab 8532.27 a N2 134.2 a 200.85 a 92.13 a 33.87 a 8394.27 a 均值Average 122.2 202.29 93.16 33.03 7450.07 F值 F-value P 0.35 ns 3.70 ns 0.26 ns 18.61** 80.42** W 32.71** 6.79** 7.82** 7.30** 6.70** N 202.22** 0.18 ns 8.50** 54.68** 302.79** P×W 0.48 ns 1.27 ns 6.36* 0.55 ns 0.67 ns P×N 4.43* 0.26 ns 6.30* 1.00 ns 0.35 ns W×N 5.03* 0.12 ns 0.35 ns 0.51 ns 1.26 ns P×W×N 0.28 ns 0.27 ns 0.09 ns 0.53 ns 0.21 ns