一种新型的叶面喷施多元螯合型微量元素肥料的施肥方法，改变了传统的粗放型施肥方法，不仅大大提高了农作物产量，而且降低了农业成本，提高了农作物品质。由我省民营企业兰州施尔丰微肥厂研制生产出的这种肥料新技术产品，经过３年多的研究试验，近日通过了由省科技厅和兰州 A new type of foliar application of multiple chelated trace element fertilizers fertilization methods, changing the traditional extensive application of fertilizers, not only greatly increase the crop yield, but also reduce agricultural costs and improve crop quality. By the province’s Lanzhou Shi Erfeng fertilizer plant private enterprises to develop this fertilizer new technology products, after more than three years of research and experiment, recently passed by the provincial Science and Technology Department and Lanzhou