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农作物叶面喷肥具有肥效快、利用率高、节省肥料、效果显著、简便易行等优点。但在具体操作时要做到科学合理,避免浪费和引起肥害,具体要掌握以下技术要点。 1、肥料品种要适宜肥料的种类很多,但有的适于叶面喷施,有的不适于叶面喷施。如尿素、磷酸二氢钾、过磷酸钙浸出液、硫酸钾、硼砂、硫酸锌等均可叶面喷施,而一些含氯离子、易挥发及难溶性肥料(如氯化铵、碳酸氢铵、钙镁磷肥等)就不可叶面喷施。
Foliar crop foliar fertilizer with fast, high utilization, fertilizer savings, the effect is obvious, simple and easy. However, in the specific operation to be scientific and reasonable, to avoid waste and fat, specifically to grasp the following technical points. 1, fertilizer varieties should be suitable for many types of fertilizers, but some suitable for foliar spray, and some unsuitable for foliar spray. Such as urea, potassium dihydrogen phosphate, superphosphate leaching solution, potassium sulfate, borax, zinc sulfate can be foliar spray, and some chloride, volatile and insoluble fertilizer (such as ammonium chloride, ammonium bicarbonate, Calcium magnesium phosphate fertilizer, etc.) can not be foliar spray.