玉米精准作业系统中土壤养分空间变异图的制作技术研究

玉米是我国的三大粮食作物之一,同时也是我国农业生产中的支柱产业。玉米的生产同时受许多不确定因素的影响。长期以来,盲目施肥、过量施肥现象普遍,不仅造成农业生产成本增加,而且带来严重的环境污染,威胁农产品质量安全。利用地理信息系统地统计分析模块,分析和绘制玉米核心技术示范区和辐射推广区的土壤养分空间变异图,探讨土壤养分的空间变异规律,为精准变量施肥提供基础数据。

Study on Manufacturing Technology of Soil Nutrient Spatial Variation Diagram in Precise Operation System of Corn

Corn was one of the three major grain crops,and the pillar industry in China.The production of corn suffered from many uncertain factors.The phenomenon of blind fertilizing and excess fertilization was common for a long time,which not only resulted in the increase of agriculture production cost,but also brought the serious pollution of the environment,and threated the safety of the agricultural product quantity.The statistics mold of GIS was used to analyze and draw the soil nutrient spatial variation diagram in core technique demonstration area and radiation extension area.The spatial variation rule of soil nutrient was discussed,which offered foundation data for precise variable fertilization.