Heilongjiang Provincial Standard of the People's Republic of China
Latest
DB2308/T 071-2020
Scope
This procedure is applicable to the construction of reasonable tillage layer in black soil type rice fields and saline soil type rice fields in the Sanjiang Plain.
DB2308/T 071-2020 history
2020DB2308/T 071-2020 Technical regulations for the construction of rational tillage layer of paddy field soil in the Sanjiang Plain