众所周知,微量元素对作物物质代谢起重要作用。近几年,很多试验证明,微量元素对棉花生长发育有良好影响。但是使用微量元素的效果,取决于很多因素,首先是地区的土壤和气候特点。前几年的研究虽证实,在早春气候不利的条件下,利用锰、铜、铝混合溶液处理棉花种子明显增产;在大田试验,供试品种,塔什干1号,以种子处理或蕾、花期根外追施微量元素等方式,施用效果都很好。一九七五至一九七七年在撒马尔汗省阿克达尔恩斯克地区,列宁农庄进行试验。土壤是草甸灰钙土,老灌溉地,土壤腐植质含量为1.20％,活动态氮40毫克/公 It is well-known that trace elements play an important role in crop metabolism. In recent years, many experiments have proved that trace elements have a good effect on cotton growth and development. However, the effectiveness of using trace elements depends on many factors, above all the soil and climate characteristics of the area. A few years ago the study confirmed that in the early spring weather adverse conditions, the use of manganese, copper, aluminum mixed solution significantly increased cotton seed; in field trials, the tested varieties, Tashkent 1, with seed treatment or bud, External trace elements such as trace elements, the application effect is very good. From 1975 to 1977, tests were carried out in the Lenin farms in the area of ​​Enschede in Samarkand province. The soil is meadow, calcareous soil, old irrigated land, soil humus content is 1.20%, active nitrogen is 40 mg /