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农作物在生长过程中需三十多种营养元素,而必需营养元素的特殊功能是不能互相代替的,故不论需要量多少,都具有同等重要的作用.1983—1984年,我们对乌鲁木齐地区耕地土壤中作物必需的微量元素——锌、锰、铜、铁、硼的含量进行测定,为施用微肥提供依据.我们普查了乌鲁木齐县各乡、牧场和市农垦局所属团场的耕地,采回土样870多个,按成土母质、地理位置和地下水深度等条件将它们分成23个土属,再按每个土属所代表的面积大小,共选测91个土样,然后对照中
Crops need more than thirty kinds of nutrients during their growth, and the special functions of essential nutrients can not be replaced by one another, so they are equally important regardless of the amount of demand.From 1983 to 1984, The determination of the content of trace elements in crops, such as zinc, manganese, copper, iron and boron, provided the basis for the application of trace fertilizers.We surveyed the cultivated land owned by the townships, pastures and municipal bureau of reclamation in Urumqi County, Soil samples of more than 870, according to the parent material, geographical location and groundwater depth and other conditions will be divided into 23 soil genus, then according to the size of each soil represented by the size of a total of 91 soil samples were selected, and then control