humic acid granular
Yunnan GreenTech Co., Ltd. [China] 
2~5mm granular Organic matter:60%~75% HA:50%~70% Water content:25%max PH:4.5~6
humic acid granular
2~5mm granular Organic matter:60%~75% HA:50%~70% Water content:25%max PH:4.5~6
humic acid granular
