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3 多元化种植模式下秸秆还田配合水氮管理对秸秆腐解率及氮素释放率的影响
Table 3 Effects of straw returning to field combined with water and N management on straw decomposition rate and N release rate under diversified cropping patterns
处理
Treatment		 秸秆腐解率Straw decomposition rate (%) N释放率N release rate (%)
拔节期
Jointing		 齐穗期
Heading		 成熟期
Maturity		 拔节期
Jointing		 齐穗期
Heading		 成熟期Maturity
Py
 W0
 N0 14.53 e 26.44 d 33.76 d 24.58 b 40.77 b 48.97 c
N1 23.81 c 35.47 c 49.57 c 27.47 a 41.53 ab 50.08 c
N2 25.35 bc 36.53 bc 51.28 c 26.83 a 42.56 ab 52.30 ab
均值Average 21.23 32.81 44.88 26.30 41.63 50.79
W1
 N0 16.49 d 27.54 d 35.65 d 22.45 c 41.90 ab 49.64 c
N1 25.62 b 37.62 b 53.69 b 27.18 a 42.03 ab 52.13 b
N2 27.61 a 42.62 a 56.50 a 26.61 a 43.81 a 53.65 a
均值Average 23.24 35.93 48.62 25.42 42.58 51.81
Px
 W0
 N0 18.43 d 27.63 b 34.47 c 21.71 d 44.29 c 53.86 c
N1 24.47 c 38.66 a 55.36 b 30.88 a 44.92 c 55.06 bc
N2 27.57 b 40.60 a 55.53 b 29.72 ab 46.25 c 58.28 a
均值Average 23.48 35.63 48.46 27.57 45.17 55.74
W1
 N0 19.33 d 28.50 b 36.47 c 24.35 c 44.90 c 55.80 b
N1 26.47 b 39.55 a 56.30 b 29.54 ab 50.70 b 57.92 a
N2 29.63 a 40.52 a 59.27 a 28.72 b 53.61 a 58.83 a
均值Average 25.15 36.19 50.68 27.54 49.73 57.52
Pq
 W0
 N0 70.57 e 74.50 c 79.53 d 72.06 a 72.83 b 74.17 b
N1 76.40 c 78.67 b 86.59 ab 73.57 a 74.65 a 75.06 ab
N2 77.68 bc 80.30 b 87.46 b 73.55 a 75.03 a 76.21 ab
均值Average 74.89 77.83 84.53 73.05 74.17 75.14
W1
 N0 73.63 d 75.51 c 81.37 c 71.62 a 73.92 ab 74.93 ab
N1 78.82 b 82.53 a 88.35 ab 72.56 a 74.98 a 75.74 ab
N2 80.68 a 83.46 a 89.63 a 72.00 a 75.13 a 76.98 a
均值Average 77.71 80.50 86.45 72.06 74.68 75.88
F值
F-value		 P 65,359.04** 200,044.57** 47,149.16** 132,294.38** 24,912.98** 1474.51**
W 413.85** 2563.92** 282.93** 3.00 ns 38.62** 21.45**
N 408.47** 15,057.63** 5254.44** 109.74** 22.64** 66.51**
P×W 10.64* 355.69** 12.95** 1.42ns 15.77** 1.16 ns
P×N 8.02** 507.66** 364.99** 19.99** 4.03** 2.02 ns
W×N 0.27 ns 127.02** 14.59** 1.50 ns 2.51 ns 1.70 ns
P×W×N 0.31 ns 120.63** 5.94** 5.00* 4.24** 1.18 ns