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通过对辽宁省阜新县耕地土壤有效养分监测和田间肥料试验,开展作物氮磷钾需求规律和最佳施肥模式研究,并根据阜新地区土壤养分特点,生产氮磷钾配方专用肥。采用常规化验方法和肥料效应函数法,从土壤化验结果上看,阜新县土壤中碱解氮和速效磷含量接近中等水平,速效钾含量属于中下等水平。从小区肥料试验结果看,阜新县在生产上钾肥和磷肥的投入量明显不足,氮肥的增产作用始终列于首位。据此阜新县土壤肥料工作站设计了适合阜新县土壤养分含量和作物需肥规律,适合在阜新县各种土壤和多种作物上施用,有较强针对性的配方,实现了测、配、产、供、施一条龙服务体系。平衡配套施肥技术可比习惯施肥增产15.5%,应在全县全面推广。
Based on the monitoring of soil available nutrients and field fertilizers in Fuxin County of Liaoning Province, the demand of nitrogen, phosphorus and potassium fertilizers and the best fertilization pattern were studied. Based on the characteristics of soil nutrients in Fuxin area, NPK formula fertilizers were produced. Using routine test methods and fertilizer effect function method, from the soil test results, the content of available nitrogen and available phosphorus in the soils of Fuxin County is close to the middle level, and the available potassium content belongs to the middle and lower levels. From the community fertilizer test results, Fuxin County in the production of potash and phosphate fertilizer input was significantly less, nitrogen fertilizer production has always been in the first place. Therefore, Fuxin County Soil and Fertilizer Workstation designed for the Fuxin County soil nutrient content and fertilizer requirements of the law for a variety of Fuxin County soil and a variety of crops on the application of a strong, targeted to achieve the measurement, distribution, production , For, Shi Shi through-train service system. Balanced fertilization technology than the conventional fertilization yield 15.5%, should be fully promoted in the county.