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1 试验田土壤基础养分状况

Table 1 The basic fertility of tested soil

土层 Soil layer 有机质 Organic matter (g·kg-1) 全氮 Total N (g·kg-1) 碱解氮 Available N (mg·kg-1) 有效磷 Available P (mg·kg-1) 速效钾 Available K (mg·kg-1) pH 0-20 cm 17.4 12.2 102.4 35.9 109.4 8.1 20-40 cm 14.1 9.0 83.9 28.1 91.1 7.9