控失尿素减施及不同配比对夏玉米产量及氮肥效率的影响

张倩, 韩本高, 张博, 盛开, 李岚涛, 王宜伦

Reduced application and different combined applications of loss-control urea on summer maize yield and fertilizer efficiency improvement

ZHANG Qian, HAN Ben-Gao, ZHANG Bo, SHENG Kai, LI Lan-Tao, WANG Yi-Lun

表1 供试土壤基本理化性状

Table 1 Basic nutrient status of the tested soils

地点 Place 产量水平 Yield level 年份 Year pH 有机质 Soil organic matter (g kg-1) 碱解氮 Alkali-hydrolysis N (mg kg-1) 速效磷 Available P (mg kg-1) 速效钾 Available K (mg kg-1) 鹤壁Hebi 高产田High-yield 2016 7.78 19.26 102.90 36.84 181.34 修武Xiuwu 中产田Middle-yield 2016 7.41 15.42 87.67 20.43 163.82 原阳Yuanyang 低产田Low-yield 2017 7.87 14.95 79.80 35.51 93.88