Long-term potash application and straw return on yield and soil fertility in intercropped wheat-maize system in Ningxia

Youhong Li, Soil and Fertilizer Institute (SFI), Ningxia Academy of Agricultural Sciences
Phone: 86-951-5043086
Fax: 86-951-6084114
Email:
High Tech Developing Region
Yinchuan, Ningxia
750002

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