长期定位施肥对土壤有机质、不同形态氮含量及作物产量的影响
刘学彤, 郑春莲, 曹薇, 党红凯, 曹彩云, 李晓爽, 李科江, 马俊永

Effects of Long-Term Located Fertilization on Soil Organic Matter, Nitrogen Forms and Crop Yields
Liu Xuetong, Zheng Chunlian, Cao Wei, Dang Hongkai, Cao Caiyun, Li Xiaoshuang, Li Kejiang, Ma Junyong
表1 试验处理
Table 1 Experimental treatments kg/hm2
处理Treatment N P2O5 玉米秸秆Maize straw
CK 0 0 0
N180+P120 180 120 0
N360+P240 360 240 0
N540+P360 540 360 0
S9000 0 0 9000
N180+P120+S9000 180 120 9000
N360+P240+S9000 360 240 9000
N540+P360+S9000 540 360 9000