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3 施磷水平对不同茬口下冬小麦花前干物质转移的影响

Table 3 Effects of P levels on the transfer of dry matter before winter wheat flower under different crops for rotation

年份 Year 磷水平 P level 茬口 Crops for rotation 干物质转移量 Dry matter transfer (g·m-2) 干物质转移率 Dry matter transfer ratio (%) 对籽粒贡献率 Contribution rate to grain (%) 茎 Stem 叶 Leaf 茎 Stem 叶 Leaf 茎 Stem 叶 Leaf 2018-2019 P0 PCR 101.2h 72.1g 28.9b 47.8a 33.6b 23.9b MCR 89.5 64.1g 30.9a 49.0a 34.9a 25.0a ICR 97.7 71.6g 28.8b 48.4a 32.0c 23.5b P90 PCR 268.9a 133.4a 27.2cd 34.8b 29.4d 14.5c MCR 263.4b 127.6b 27.7c 35.6b 29.9d 14.4c ICR 259.2c 135.6a 26.2d 33.7c 28.6e 14.9c P180 PCR 216.0e 115.2d 19.3e 25.6d 19.4f 10.3d MCR 199.2f 100.2f 19.1e 22.7e 19.8f 9.9d ICR 226.3d 119.0c 19.8e 26.3d 19.2f 10.1d P270 PCR 130.2g 108.1e 11.4f 22.9f 12.5g 10.4d MCR 102.3h 98.4f 9.4g 21.5f 10.3h 9.9d ICR 132.5g 106.5e 11.1f 21.5f 12.4g 10.0d 2019-2020 P0 PCR 121.4e 96.8h 26.8b 48.8a 33.0b 26.4b MCR 75.6f 58.6 30.4a 44.8b 35.6a 27.6a ICR 120.9e 92.1 27.1b 44.7b 33.2b 25.3c P90 PCR 261.4a 145.a 24.5c 30.0c 25.6d 14.2e MCR 245.7a 134.1c 24.6c 30.9c 27.9c 15.2d ICR 247.2a 139.3b 23.8c 28.2d 24.8d 13.9e P180 PCR 222.6b 125.6e 19.8de 25.7e 19.2f 10.9fg MCR 199.9c 117.5f 18.0e 23.7fg 18.4f 10.8fg ICR 245.4a 131.1d 20.9d 24.4f 20.8e 11.2f P270 PCR 174.9d 113.2g 14.5f 23.0g 15.9g 10.2g MCR 168.5d 119.3f 15.1f 23.3g 15.5g 10.9fg ICR 174.1d 114.1g 14.3f 20.0h 15.5g 10.2g