DB43/T 1958-2020 Technical regulations for reducing the application of chemical fertilizers and pesticides and increasing efficiency in rice in double-cropping rice areas of Hunan (English Version)
Hunan Provincial Standard of the People's Republic of China
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DB43/T 1958-2020
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2020DB43/T 1958-2020 Technical regulations for reducing the application of chemical fertilizers and pesticides and increasing efficiency in rice in double-cropping rice areas of Hunan