作物生长除需氮、磷、钾等大量元素外,还需要一些微量元素。各种元素在作物中的含量悬殊很大,但都具有其特定的生理功能,互相不能代替。1983年土壤普查以来,群众对磷肥和锌肥有了一定的认识,不计算经济效益,盲目施用,既浪费资金又达不到高产的目的,为模清磷、锌的适宜配合施用量,我们于1986年在本县营子乡张庙村进行了小麦磷,锌配比试验。 Crop growth in addition to nitrogen, phosphorus, potassium and other large elements, but also need some trace elements. The content of various elements in crops vary greatly, but all have their specific physiological functions, can not replace each other. Since the 1983 Census of Soil, people have got a certain understanding of phosphate fertilizer and zinc fertilizer. Without calculating the economic benefits and blindly applying it, it is not only wasteful of funds nor high yield, In 1986, Zhangmiao Village, Yingzi Township, carried out experiments of phosphorus and zinc ratio.