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In situ nitrogen mineralization, nitrification, and ammonia volatilization in maize field fertilized with urea in Huanghuaihai region of northern China
In situ nitrogen mineralization, nitrification, and ammonia volatilization in maize field fertilized with urea in Huanghuaihai region of northern China
Spatial variation in carbon and nitrogen in cultivated soils in Henan Province, China
Spatial variation in carbon and nitrogen in cultivated soils in Henan Province, China