论文部分内容阅读
微量元素(主要指铜、铁、锌、锰、硼)在作物体内的含量虽少,却是作物正常生长发育不可缺少的,也是其它元素不能代替的.随着农作物产量的不断提高和氮磷化肥用量的逐渐增加,作物对微量元素的吸收量也相应增多.世界各国早已注重施用微肥,澳大利亚把施用微肥作为作物增产的关键性措施.我国于六十年代开始注意这个问题,七十年代普遍对土壤微量元素含量和施用微肥问题开展了研究.新疆从1980年起,由自治区农业厅组织各地、县土壤普查办公室接全国化肥网的要求,重点采集耕地土壤样品.
Trace elements (mainly copper, iron, zinc, manganese, boron) in the content of the crop is small, but it is essential for the normal growth and development of crops, but also other elements can not be replaced.With the continuous increase of crop yield and nitrogen and phosphorus The amount of chemical fertilizer is gradually increased and the amount of trace elements absorbed by crops also increases correspondingly.Monotypes in the world have long been concerned with the use of trace fertilizers and the application of trace fertilizers in Australia as a key measure to increase crop production.China began to pay attention to this problem in the 1960s, Since the 1980s, the Agriculture Department of Xinjiang Uygur Autonomous Region has organized all the prefectures and counties’ soil census offices to accept the requirements of the National Fertilizer Network, focusing on the collection of arable land soil samples.