有机肥替代化肥对旱地小麦产量和养分利用效率的影响及其经济环境效应

张奇茹,谢英荷,李廷亮,刘凯,姜丽伟,曹静,邵靖琳

Effects of Organic Fertilizers Replacing Chemical Fertilizers on Yield, Nutrient Use Efficiency, Economic and Environmental Benefits of Dryland Wheat

ZHANG QiRu,XIE YingHe,LI TingLiang,LIU Kai,JIANG LiWei,CAO Jing,SHAO JingLin

表6 2018年各处理收获期表层土壤肥力及硝态氮残留状况

Table 6 Surface soil fertility and nitrate nitrogen residues during the harvest period of each treatment in 2018

处理 Treatment 有机质 Organic matter (g·kg-1) 全氮 Total nitrogen (g·kg-1) 有效磷 Available phosphorus (mg·kg-1) 速效钾 Available potassium (mg·kg-1) 硝态氮 Nitrate nitrogen (kg·hm-2) pH FP 14.3c 0.8a 27.6b 183b 69.4a 8.1a OF 14.5bc 0.8a 20.8b 213b 48.8b 8.0a OFM 15.0ab 0.8a 31.4ab 254a 37.6d 7.9a OFB 15.2a 0.8a 39.0a 251a 44.1c 7.9a