The news often reports pesticide residue on vegetables market always exceeds bid that make our healthy and life in great danger.Lived in the cities with lots of tall building, the people prefer to plant vegetables by myself market on rooftops kind for its safety and fun. Plants need a lot of fertilizers, such as zinc sulfate, ferrous sulfate. Now Rech Chemical introduce six essential fertilizers for family roof vegetable planting as follow. [Read More]