覆膜滴灌条件下基于玉米产量和土壤磷素平衡的 磷肥适用量研究

侯云鹏,王立春,李前,尹彩侠,秦裕波,王蒙,王永军,孔丽丽

Research on Optimum Phosphorus Fertilizer Rate Based on Maize Yield and Phosphorus Balance in Soil Under Film Mulched Drip Irrigation Conditions

YunPeng HOU,LiChun WANG,Qian LI,CaiXia YIN,YuBo QIN,Meng WANG,YongJun WANG,LiLi KONG

表3 不同施磷处理农田磷素收支表观平衡

Table 3 Phosphorus apparent balance under different phosphorus application treatments

年份 Year 处理 Treatment 施磷量 P application rate (kg·hm-2) 地上部磷积累量 Aboveground P accumulation (kg·hm-2) 磷素表观平衡 Apparent P balance (kg·hm-2) 磷素盈余率 P surplus rate (%) 2015 P0 0 68.3±3.2e -68.3±3.2f -100.0±0.0 f P40 40 79.8±2.5d -39.8±2.5e -49.8±1.6 e P70 70 84.8±1.9c -14.8±1.9d -17.5±1.9 d P100 100 91.5±3.6a 8.5±3.6c 9.4±4.4 c P130 130 88.7±1.5ab 41.3±1.5b 46.7±2.5 b P160 160 86.3±2.3bc 73.7±2.3a 85.4±5.0 a 2016 P0 0 72.0±3.1d -72.0±3.1f -100.0±0.0 f P40 40 84.9±3.3c -44.9±3.3e -52.9±1.9 e P70 70 95.4±1.7b -25.4±1.7d -26.6±1.3 d P100 100 102.1±2.4a -2.1±2.4c -2.0±2.3 c P130 130 101.7±2.4a 28.3±2.4b 27.9±3.1 b P160 160 99.8±2.0ab 60.2±2.0a 60.4±3.2 a 2017 P0 0 67.2±1.0e -67.2±1.0f -100.0±0.0 f P40 40 80.8±2.8d -40.8±2.8e -50.5±1.7 e P70 70 87.6±3.2c -17.6±3.2d -20.0±3.0 d P100 100 97.7±2.8a 2.3±2.8c 2.4±3.0 c P130 130 94.5±2.1ab 35.5±2.1b 37.7±3.0 b P160 160 91.7±2.2bc 68.3±2.2a 74.5±4.2 a 均值 Mean P0 0 69.2±1.6d -69.2±1.6f -100.0±0.0f P40 40 81.8±1.1c -41.8±1.1e -51.1±0.7e P70 70 89.3±1.3b -19.3±1.3d -21.6±1.2d P100 100 97.1±2.0a 2.9±2.0c 3.0±2.1c P130 130 94.9±0.5ab 35.1±0.5b 36.9±0.8b P160 160 92.6±0.9b 67.4±0.9a 72.8±1.6a 方差分析 ANOVA 年份 Year (Y) ** ** ** 施磷处理 Fertilization (P) ** ** ** 年份×施磷处理 Y×P * * **