通过在沈阳棕壤上的5年定位试验，对不同施肥处理土壤进行锌、铜、锰各形态系统分析，结果表明：覆膜栽培加剧了土壤中锌、铜、锰各形态的消耗，不同施肥处理，三种元素各形态含量存在较大差异，土壤有机态锌、铜，氧化物结合态铜，交换态锰，碳酸盐结合态锰是玉米吸收的主要形态。 Based on the five-year experiment of locating on brown soil in Shenyang, the morphological analysis of zinc, copper and manganese in different fertilization treatments was carried out. The results showed that the plastic film mulching intensified the consumption of various forms of zinc, copper and manganese in soil, Treatment, there is a big difference in the content of the three elements. Soil organic zinc, copper, oxide-bound copper, exchangeable manganese and carbonate bound manganese are the main forms of corn absorption.