共 25 条
[2]
Long-term effects of potassium fertilization and straw return on soil potassium levels and crop yields in north-central China.[J].Shicheng Zhao;Ping He;Shaojun Qiu;Liangliang Jia;Mengchao Liu;Jiyun Jin;Adrian M. Johnston.Field Crops Research.2014,
[3]
Potassium assessment of grain producing soils in North China.[J].Deshui Tan;Jiyun Jin;Lihua Jiang;Shaowen Huang;Zhaohui Liu.Agriculture; Ecosystems and Environment.2011,
[4]
Research on potassium in agriculture: needs and prospects.[J]..Plant and Soil.2010, 1
[6]
[7]
[8]
[9]
[10]

