基于GIS的县域肥料配方设计

Formula Design of Compound Fertilizer for County Region Based on GIS

以湖北省洪湖市为例,利用土壤养分丰缺指标法,结合运用了ArcGIS 9.0软件的地统计分析模块(Geostatistical Analyst)和空间分析模块(Spatial Analyst),研究了湖北省洪湖市中稻、棉花适宜的复混肥料配方及其在县域上的分布。结果表明,中稻、棉花适宜的复混肥料配方(N-P2O5-K2O比例)各3个,中稻配方为21%-6%-18%、20%-9%-16%、20%-11%-14%,棉花配方为19%-8%-18%、20%-9%-16%、21%-12%-12%。

Balance fertilization theory combined with geostatistical analyst and spatial analyst of ArcGIS 9.0 software was applied to design formula of compound fertilizer for middle-season rice and cotton crop in Honghu city of Hubei province. The statistical results showed that the formula（N-P2O5-K2O ratio） 21%-6%-18%,20%-9%-16%,20%-11%-14% adapt to middleseason rice and 19%-8%-18%,20%-9%-16%,21%-12%-12% adapt to cotton crop.