Guangdong Provincial Standard of the People's Republic of China
Latest
DB44/T 1247-2013
Scope
This standard specifies the environmental conditions of the production area, the main types of nitrogen fertilizers and their usage principles, nitrogen fertilizer application technology and nitrogen fertilizer storage methods for leafy vegetables.
DB44/T 1247-2013 history
2013DB44/T 1247-2013 Technical regulations on nitrogen fertilizer application for leafy vegetables