[shandong agricultural science] choose good fertilizer for farmers -- new nongda liangjian ningbo phosphate compound fertilizer

Large agricultural groups with

Nongda humic acid and black songtu nonggao

Show up at the phosphate compound fertilizer exhibition 

Please click the link below to read:

https://mp.weixin.qq.com/s/qSbA8nZKmfhuYEbmNRYMWA