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江淮丘陵地区的成土母质为下蜀系黄土,土壤的主要含钾矿物为长石,缓效钾约为400ppm.供钾水平中等.但是,由于地形和耕种方式不同,土壤中钾素的转化积累也是不同的.这个地区的几种土壤耕种方式差别很大,土壤中有效钾的含量也会因耕种方式不同而产生差异.钾素是促进作物生长健壮的元素.它通过增强作物抗病力和壮大根系来防止倒状和消除氮多的害处.当土壤有效钾供应不足时,就要施用钾肥来调节土壤养分的平衡,保证作物正常生长.当前农业生产发展很快,氮、磷化肥用量显著增加,土壤中被消耗的钾量也日益增多.探讨江淮丘陵地
The soil parent material in the Jianghuai hilly region is loess in the Lower Shu, and the main potassium-bearing mineral in the soil is feldspar, the slow-acting potassium is about 400ppm, the middle-level potassium is available, but because of different topography and cultivation methods, Accumulation is also different: There are several different ways of soil cultivation in this area, and the available potassium content in the soil varies according to the way in which it is cultivated: Potassium is a strong element that promotes crop growth by enhancing crop disease resistance And strengthen the root system to prevent inverted and eliminate the harmful effects of nitrogen.When the available potassium supply is insufficient, it is necessary to use potassium fertilizer to regulate the balance of soil nutrients to ensure the normal growth of crops.At present, the rapid development of agricultural production, nitrogen and phosphorus fertilizer consumption A significant increase in the amount of potassium consumed in the soil is also increasing