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微量元素是指土壤和植物体中含量很少的营养元素。一般占作物干重的百分之几至百万分之几。目前研究和使用较多的微量元素有硼、钼、锌、锰、铁、铜等六种。 微量元素在作物体内含量虽少,但由于它们是植物体或生物酶和辅酶的组成部分,其生理功能具有很强的专一性,是作物正常生长发育不可缺少和不可互相代替的。因而,只有了解微量元素的营养功能,土壤中微量养分的供应状况,进行微肥的合理施用,才能达到高产。 一、新疆土壤微量元素状况 1、全疆土壤微量元素状况:全疆微量元素普查工作,在八十四个县、市中进行了六十八个,采土样一千多个,从分析结果
Trace elements are nutrients that are present in very little amounts in soils and plants. Generally accounted for a few percent of the crop dry weight to a few millionths. The current research and use of more trace elements are boron, molybdenum, zinc, manganese, iron, copper and other six. Trace elements in the body although the content is small, but because they are part of plant or biological enzymes and coenzymes, its physiological function has a strong specificity, the normal growth and development of crops is indispensable and can not be replaced each other. Therefore, only to understand the nutritional function of trace elements, the supply of trace nutrients in the soil, the rational application of micronutrients in order to achieve high yield. I. Soil Microelement Status in Xinjiang 1. Situation of Soil Microelements in Xinjiang: The survey of trace elements in Xinjiang has carried out 68 surveys and more than 1000 soil sampling in 84 counties and cities. From the analysis results