施磷水平对不同茬口下冬小麦生长发育及产量的影响

薛华龙,娄梦玉,李雪,王飞,郭彬彬,郭大勇,李海港,焦念元

Effects of Phosphorus Application Levels on Growth and Yield of Winter Wheat Under Different Crops for Rotation

XUE HuaLong,LOU MengYu,LI Xue,WANG Fei,GUO BinBin,GUO DaYong,LI HaiGang,JIAO NianYuan

表2 施磷水平对不同茬口下冬小麦干物质分配的影响

Table 2 Effects of P level on dry matter distribution of winter wheat under different crops for rotation

年份 Year 磷水平 P level 茬口 Crops for rotation 分配量Allocation (g·m-2) 分配比率Distribution rate (%) 茎 Stem 叶 Leaf 颖壳及穗轴 Glume and rachis 籽粒 Grain 茎 Stem 叶 Leaf 颖壳及穗轴 Glume and rachis 籽粒 Grain 2018-2019 P0 PCR 253.9g 79.8e 130.7e 301.6f 33.1d 10.4h 17.1a 39.4g MCR 199.8h 66.7e 86.1f 256.4g 32.8e 11.0g 14.1c 42.1d ICR 229.4gh 76.1e 119.1ef 305.1f 31.4h 10.4h 16.3b 41.8d P90 PCR 714.57f 260.4d 252.8c 965.6d 32.6e 11.9cd 11.5f 44.0b MCR 686.8f 240.1d 245.1c 880.9e 33.5c 11.7ef 11.9e 42.9c ICR 728.5f 260.4d 263.8c 935.8d 33.4c 11.6f 12.1e 42.9c P180 PCR 903.1d 333.7c 331.7ab 1238.6b 32.2f 11.9cd 11.8ef 44.1b MCR 842.6e 322.0c 313.7b 1164.5c 31.9g 12.2b 11.9e 44.1b ICR 952.8c 356.6b 360.2a 1341.8a 31.6h 11.8de 12.0e 44.6a P270 PCR 1006.1b 362.1b 354.4ab 1229.2b 33.3cd 12.0c 14.0c 40.7e MCR 985.8bc 357.6b 370.2a 1124.8c 34.3a 12.4a 14.2c 39.1g ICR 1060.9a 387.2a 363.9a 1260.9b 33.9b 12.4a 13.6d 40.2f 2019-2020 P0 PCR 350.3g 93.7h 188.6d 367.2g 35.1a 9.4g 18.9a 36.7h MCR 173.0h 56.0h 87.1f 192.7h 34.0bc 11.0f 17.1b 37.9g ICR 326.0g 100.7h 143.8e 363.6g 34.9ab 10.8f 15.4c 38.9ef P90 PCR 878.0de 399.0ef 326.1b 1097.9d 32.2de 14.6cd 12.2g 41.0c MCR 782.3f 288.0g 277.3c 958.3f 33.9c 12.5e 12.0g 41.6b ICR 810.7ef 374.7f 338.9b 1016.8e 31.9de 14.7bc 13.3ef 40.0d P180 PCR 902.3d 431.3cd 388.9a 1274.4b 30.1g 14.4cd 13.0f 42.5a MCR 877.0de 412.0de 339.8b 1164.7c 31.4ef 14.7bc 12.2g 41.7b ICR 970.7ab 444.0c 390.2a 1356.1a 30.7fg 14.0d 12.3g 42.9a P270 PCR 1011.0ab 473.3ab 428.9a 1196.6c 32.5d 15.2b 13.8de 38.5f MCR 941.0cd 458.0bc 404.7a 1085.6d 32.6d 15.9a 14.0d 37.6g ICR 1040.3a 488.7a 430.9a 1271.2b 32.2de 15.1b 13.3ef 39.3e