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在选购叶面肥时,应注意包装标明的叶面肥的类型和功能,使叶面施肥的目的与叶面肥的功能一致;还应注意产品有无农业部颁发的叶面肥登记证号及产品标准证号,以确保叶面肥质量和施用效果。根据作物的生长发育及营养状况选择适宜的叶面肥品种。在作物生长初期,为促进其生长发育选择调节型叶面肥,若作物营养缺乏或生长后期
In the purchase of foliage fertilizer, should pay attention to packaging the type and function of the indicated foliar fertilizer, the purpose of foliar fertilization consistent with the function of foliar fertilizer; should also pay attention to whether the product foliar registration certificate issued by the Ministry of Agriculture Number and product standard number to ensure the quality and application of foliar fertilizer. According to the growth of crops and nutritional status of the selection of suitable foliar fertilizer varieties. In the early crop growth, in order to promote its growth and development of selective foliar fertilizer, if the crop is lack of nutrition or growth late