摘要
研究了银川市兴庆区掌政乡不同种植年限的节能日光温室土壤养分状况,以期对银川市节能日光温室土壤养分的合理管理提出理论依据。结果表明:银川市日光温室土壤磷、钾肥超标而氮肥不足,化肥施用氮、磷、钾比例失调。建议采取限制磷、钾化肥用量、改进施肥技术等措施。
Fertilizer application status was studied in different planting age in Zhangzhen Township,Xingqing District,Yinchuan.The status and distribution of accumulating nutrient in different profile of cover greenhourse in Yinchuan city were surveyed.The results showed that over-application of phosphorus and potassium was common and the application of nitrogen was lack.Significant maladjustment of N,P and K application ratio existed in greenhouse vegetable in Yinchuan.We suggested to limit phosphorus and potassium application rate,to improve fertilizer practice.
出处
《北方园艺》
CAS
北大核心
2011年第22期138-140,共3页
Northern Horticulture
基金
国家大宗蔬菜产业技术体系银川综合试验站资助项目(CARS-25-G-50)
