万天叶绿灵使用说明书　[2018-04-07]

EDDHA-Fe is high active chelated iron, and is more easily to be absorbed by plants.Its assimilation effect is far better than common EDTA chelated iron, and hundreds times the traditional iron fertilizer. The fertilizer can be well absorbed by plants when the soil PH is 4.5-11(the higher the PH is, ......　[查看详情]