有机肥配施氮肥对滴灌春玉米产量及土壤肥力状况的影响

王艳丽,吴鹏年,李培富,王西娜,朱旭

Effects of organic manure combined with nitrogen fertilizer on spring maize yield and soil fertility under drip irrigation

Yan-Li WANG,Peng-Nian WU,Pei-Fu LI,Xi-Na WANG,Xu ZHU

表1 玉米不同生育期灌水和施肥情况

Table 1 Irrigation and fertilization status during growing stage of maize

播种 Sowing period 苗期 Seeding period 拔节期 Jointing period 抽雄期 Tasseling period 吐丝期 Silking period 灌浆期 Filling period 成熟期 Mature period 灌水日期 Irrigation date (month/day) 4/27 5/18 6/7, 6/22 7/3, 7/14 7/26 8/5, 8/22 9/3 灌水量Irrigation quantity (m3 hm-2) 225 150 225, 375 375, 300 375 300, 225 225 尿素Urea - 15% 20%, 20% 15%, 15% 5% 5%, 5% - 磷酸二氢钾KH2PO4 - 25% -, 25% -, 25% - 25%, - -