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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
1
(
), 郑春莲
1
, 曹薇
2
, 党红凯
1
, 曹彩云
1
,
3
, 李晓爽
4
, 李科江
1
,
3
, 马俊永
1
,
3
(
)
Effects of Long-Term Located Fertilization on Soil Organic Matter, Nitrogen Forms and Crop Yields
Liu Xuetong
1
(
), Zheng Chunlian
1
, Cao Wei
2
, Dang Hongkai
1
, Cao Caiyun
1
,
3
, Li Xiaoshuang
4
, Li Kejiang
1
,
3
, Ma Junyong
1
,
3
(
)
图2.
不同处理土壤全氮含量
Fig.2.
Soil total nitrogen contents in different treatments