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为探明“十一五”期间南疆高产棉田土壤养分现状,以巴州典型高产棉田为研究对象,对籽棉产量在6750～7500kg/hm2的棉田进行连续2年的定点取样,测试分析大、中、微量元素含量。结果表明,48.33%的样品全氮含量属低水平;63.33%的样品碱解氮含量属中等水平;46.67%的样品有效磷含量属中等水平;61.67%的样品的有效钾含量属低水平;100%的样品交换性钙、交换性镁、有效硫属于极高水平;81.48%的样品的有效硼含量属中等水平;88.88%的样品有效铜含量属中等水平;77.78%的样品有效铁含量属于低水平;92.59%的样品有效锌含量属于低水平。要在“十二五”期间保持棉花高产优质,生产中要重视钾肥的使用,同时要保证有机肥充足施用,合理配施氮磷肥,微量元素中要重视锌肥、铁肥施用,对硼肥、铜肥根据棉花长势适量配施。
In order to find out the status of soil nutrients in high-yielding cotton field in Southern Xinjiang during the 11th Five-year Plan period, taking typical high-yielding cotton fields in Bazhou as the research object, the cotton field with a yield of 6750 ~ 7500kg / hm2 was sampled and tested continuously for 2 years Large, medium and trace element content. The results showed that the content of total nitrogen in 48.33% of the samples was low, 63.33% of the samples were of medium level, 46.67% of the samples were moderately available phosphorus, 61.67% of the samples had a low level of available potassium, and 100 Exchangeable magnesium and effective sulfur belong to very high level; 81.48% of samples have moderate boron content; 88.88% of samples have moderate copper content; 77.78% of samples have low iron content Level; 92.59% of the sample effective zinc content is low level. It is necessary to maintain the high yield and quality of cotton during the “Twelfth Five-Year Plan” period, and pay more attention to the use of potash fertilizer in the production. At the same time, it is necessary to ensure adequate application of organic fertilizers and proper application of nitrogen and phosphorus fertilizers, and the application of zinc fertilizer and iron fertilizer in trace elements. Boron, copper fertilizer grow according to the amount of cotton with facilities.