安康市耕地土壤养分现状及施肥对策

Status of Soil Nutrients in Cultivated Land and Fertilization Strategies in Ankang City

采用安康市测土配方施肥项目耕地土壤养分化验数据,对不同土类耕地土壤中有机质、全氮、碱解氮、有效磷、速效钾等养分进行综合分析,并与第2次土壤普查时的数据进行对比,摸清了安康市耕地土壤养分现状与变化规律,建议在今后的施肥中坚持"控氮、稳磷、补钾、配微"和"缺啥补啥"的原则,以增施有机肥为主,化肥为辅,大力推广测土配方施肥。

By using soil nutrient test data, organic matter, total N, alkali-hydrolyzable N, available P, available K in soils of various cultivat- ed land were analyzed and were compared with data from the second soil survey, the soil nutrients status and change law of the whole city were grasped. It was suggested that in the future fertilization we should adhere to the principle of ＂controlling nitrogen, stabilizing phosphorus, supplementing potassium and micro fertilizer＂, increase the application of organic fertilizer, vigorously promote the＇ soil testing and formula fertilization.