１棉田土壤钾素含量现状喀什地区土壤属石灰性母质，土壤含钾丰富，长期以来人们只注重氮、磷肥的施用，忽视钾肥的补充。随着棉花生产的快速发展，氮磷化肥投入量增加，棉花产量不断提高，土壤中的钾处于入不敷出的状态，棉田土壤钾素亏损严重。１９９６～１９９７年对辖... Status of soil potassium in cotton field The soil in Kashgar region is characterized by calcareous parent material and rich soil potassium. For a long time, people only paid attention to the application of nitrogen and phosphate fertilizer while neglecting the supplement of potassium fertilizer. With the rapid development of cotton production, inputs of nitrogen and phosphorus fertilizers have increased, cotton production has been continuously increased, potassium in the soil has been unable to make ends meet, and the soil potassium depletion in the cotton field has been seriously affected. From 1996 to 1997 ...