摘要
针对玉米种植普遍存在的选种难、盲目施肥等问题,基于多年实测土壤数据,根据示范推广经验,以养分平衡法为理论依据,采用土壤养分有效校正系数方法设计了一套玉米种植技术咨询服务系统,用于指导当地农民如何科学选种、如何精准施肥。系统具有针对性好、实践性强、地域突出等优点,根据地块自然条件因地制宜为农民推荐高产高效品种,利用目标产量法精准计算施肥量。应用结果表明,该系统能有效降低肥料投入成本,提高玉米种植经济效益。
To solve the general problems in difficult seed selection and blind fertilization in corn planting, based on soils data accumulated in the past years, our experience on corn＇s popularization and demonstration, and relied on the theory of balance method of soil nutrient and the technique of effective corrective factor of soil nutrient, we developed the technical advisory service system for corn planting to guide seed seientifieal selection and accurate fertilization. The system has the advantage of good pertinency, strong practical, and prominent regional. It could recommend high productive and efiqeient seed on the basis of field＇s natural conditions and calculate precise fertilization rate using target output method. The result indicated that the system will reduce fertilizer input costs effectively and enhance economic returns.
出处
《山西农业科学》
2013年第9期1013-1016,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省科技基础条件平台建设项目(2011091021)
山西省星火计划项目(20120510044-1)
关键词
养分平衡法
土壤养分有效校正系数
选种
施肥
系统
balance method of nutrient
effective corrective factor of soil nutrient
seed selection
fertilization
system
