DB14/T 1167-2015 Technical regulations for deep fertilization of corn stalks sown in Yuanping dry land in winter and spring mulching and returning to the field (English Version)
Shanxi Provincial Standard of the People's Republic of China
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DB14/T 1167-2015
DB14/T 1167-2015 history
2015DB14/T 1167-2015 Technical regulations for deep fertilization of corn stalks sown in Yuanping dry land in winter and spring mulching and returning to the field