Shandong Provincial Standard of the People's Republic of China
Latest
DB37/T 051-1990
Scope
This standard specifies the treatment of grass handles, setting up of storage holes, mulch covering and management of storage holes during mulching of fertilizer water in holes.
DB37/T 051-1990 history
1990DB37/T 051-1990 Technical specification for plastic film mulching for water storage in apple holes