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4 多元化种植模式下秸秆还田配合水氮管理对水稻干物质积累的影响

Table 4 Effects of straw returning to field combined with water and N management on rice dry matter accumulation under diversified cropping patterns

处理 Treatment 拔节期Jointing 齐穗期Heading 成熟期Maturity 收获指数 Harvest index 茎鞘 Stem sheath 叶 Leaf 茎鞘 Stem sheath 叶 Leaf 穗 Panicle 茎鞘 Stem sheath 叶 Leaf 穗 Panicle Py W0 N0 1113.38 c 664.05 b 2962.43 b 917.18 c 1006.92 b 2100.04 c 740.80 b 6200.61 c 0.69 a N1 1704.77 ab 1048.62 a 5129.31 a 2009.36 b 1482.33 a 3469.70 b 1585.77 a 9344.37 ab 0.65 b N2 1637.99 b 1011.64 a 5245.73 a 1976.31 b 1392.52 a 3489.79 ab 1540.37 a 9030.19 b 0.64 b 均值Average 1485.38 908.11 4445.82 1634.30 1293.93 3019.85 1288.98 8191.72 0.66 W1 N0 1124.75 c 682.53 b 2831.02 b 939.17 c 1027.17 b 2136.47 c 755.35 b 6189.72 c 0.68 a N1 1945.54 a 1195.29 a 5568.86 a 2085.37 ab 1520.01 a 3678.36 ab 1645.97 b 9870.51 a 0.65 b N2 1811.08 ab 1115.25 a 5880.09 a 2164.15 a 1421.79 a 3763.46 a 1669.77 a 9759.62 ab 0.64 b 均值Average 1627.12 997.69 4759.99 1729.60 1322.98 3192.76 1357.03 8606.62 0.65 Px W0 N0 1024.72 b 657.27 b 2867.01 c 898.54 c 982.48 b 2081.99 c 731.87 b 6011.75 a 0.68 a N1 1655.94 a 989.93 a 4681.76 b 1891.40 b 1362.11 a 3199.36 b 1505.76 a 9182.41 a 0.66 bc N2 1638.72 a 981.22 a 4915.01 ab 1920.15 a 1312.71 a 3332.93 ab 1522.19 a 8952.41 a 0.65 c 均值Average 1439.79 876.14 4154.59 1570.00 1219.10 2871.43 1253.28 8048.86 0.66 W1 N0 1121.58 b 664.59 b 2961.35 c 914.22 c 983.14 b 2230.11 c 735.10 b 6034.48 b 0.67 ab N1 1731.74 a 1083.37 a 4892.76 ab 1931.60 ab 1379.68 a 3240.28 b 1511.84 a 9333.28 a 0.66 bc N2 1714.86 a 1050.06 a 5289.58 a 2038.32 a 1315.27 a 3469.19 a 1587.60 a 9211.06 a 0.65 c 均值Average 1522.73 932.67 4381.23 1628.10 1226.03 2979.86 1278.18 8192.94 0.66 Pq W0 N0 1014.59 b 612.13 b 2702.58 b 758.84 c 960.42 b 1927.36 c 643.92 c 6008.35 b 0.70 a N1 1648.50 a 980.37 a 4199.52 a 1530.1 b 1358.73 a 2912.69 b 1221.16 b 8481.31 a 0.67 b N2 1638.79 a 917.29 a 4417.26 a 1664.74 ab 1293.68 a 3067.35 ab 1283.36 ab 8244.25 a 0.65 c 均值Average 1433.96 836.60 3773.13 1317.90 1204.28 2635.80 1049.48 7577.97 0.67 W1 N0 1103.21 b 641.05 b 2613.99 b 786.33 c 967.75 b 1954.44 c 653.04 c 6027.06 b 0.70 a N1 1708.05 a 992.62 a 4259.65 a 1638.75 ab 1374.99 a 3066.94 ab 1304.95 a 8534.76 a 0.66 bc N2 1676.24 a 885.18 a 4499.22 a 1702.75 a 1318.13 a 3081.24 a 1305.02 a 8476.73 a 0.66 bc 均值Average 1495.83 839.62 3790.95 1375.90 1220.30 2700.88 1087.67 7679.52 0.67 F值 F-value P 2.60 ns 14.96** 20.01** 94.39** 10.63** 181.21** 28.35** 22.58** 0.78 ns W 7.51* 11.88** 2.05 ns 12.13** 0.98 ns 21.90** 11.89** 2.79 ns 0.17 ns N 152.64** 82.21** 232.55** 976.82** 124.78 ns 485.82** 485.21** 318.66** 3.92* P×W 0.28 ns 6.06* 0.46 ns 0.38 ns 0.14 ns 1.61 ns 1.01 ns 0.55 ns 0.04 ns P×N 0.30 ns 0.67 ns 3.43** 6.30** 0.54 ns 4.94** 4.16** 2.99* 0.14 ns W×N 0.26 ns 0.49 ns 1.69 ns 1.55 ns 0.03 ns 0.35 ns 0.64 ns 1.08 ns 0.12 ns P×W×N 0.58 ns 0.29 ns 0.37 ns 0.64 ns 0.01 ns 0.77 ns 0.32 ns 0.25 ns 0.04 ns