蔬菜保护地不同施肥处理对土壤钾含量的影响  

Effect of Different Fertilization Ways on K Content of Vegetable Planted Soils in Greenhouse

作　　者：杜立宇[1] 潘大伟[1] 张鸿玲[1] 梁成华[1] 徐志强 

机构地区：[1]沈阳农业大学土地与环境学院,辽宁沈阳110161 [2]辽宁省土肥站,辽宁沈阳110034

出　　处：《土壤通报》2006年第5期945-949,共5页Chinese Journal of Soil Science

基　　金：国家自然科学基金项目(30370972);沈阳农业大学青年基金项目资助

摘　　要：采用田间试验与室内分析相结合的方法,研究了长期定位施肥条件下,不同施肥处理对蔬菜保护地土壤钾含量的影响,结果表明:保护地土壤各不同施肥处理中全钾的含量发生了显著的变化,表现为长期单施钾肥的处理土壤全钾含量较高,而有机肥施用对土壤全钾含量的影响却不大。有机肥的施用可以明显提高土壤缓效钾和速效钾的含量,氮磷钾养分比例协调对于土壤速效钾含量发挥起到比较大的促进作用,表现为BNPK处理速效钾含量最高。The effects of different fertilization on K content of vegetable soil greenhouse were investigated through the cooperation of field experiment and the chemical analysis. The results showed that the amount of total potassium obviously changed under different fertilization in greenhouse soil. Long - term application of potassium increased the amount of total potassium in the soil, while the application of organic fertilizer had little effect. The application of organic matter significantly increased the amount of slowly available potassium and readily available potassium. The amount of readily available potassium was the highest in the BNPK treatment.

关 键 词：长期定位 蔬菜保护地 土壤钾含量 

分 类 号：S626[农业科学—园艺学] S153.61