DB41/T 2127-2021 Technical regulations for organic fertilizer replacement and chemical fertilizer reduction in winter wheat and summer corn double cropping system (English Version)
Henan Provincial Standard of the People's Republic of China
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DB41/T 2127-2021
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2021DB41/T 2127-2021 Technical regulations for organic fertilizer replacement and chemical fertilizer reduction in winter wheat and summer corn double cropping system