摘要
以新疆兵团农七师 12 5团为例 ,探讨建立了乡镇、团场级土壤肥力信息管理和棉花施肥推荐支持决策系统。通过应用地理信息系统 (GIS)、数学模型等方法建立了土壤肥力评价模型和评价体系 ,结合肥料试验建立了棉花施肥推荐支持决策系统。系统具有生成乡镇、团场地理信息土壤肥力分布图、分析土壤肥力资源、提供棉花施肥咨询与配方推荐等功能。系统应用的结果表明 ,12 5团土壤肥力大多处于中等水平 ,高、中、低肥力土壤的面积所占比例分别为 30 .5 %、4 1.5 %和 2 8.0 % ;2 0 0 0年推广 2 .87万ha,每公顷节约化肥投入成本 114元 ,增产皮棉 12 3kg ,合计节本、增效 15
Taking 125th Regiment of the 7th Agricultural Division as example in Xinjiang, an evaluation model of soil fertility was established by using GIS and mathematical method. Chart of soil fertility information was built in 125 Regiment, based on these, a cotton fertilization recommendation support decision system was established. Fertilization recommendation, fertilization consultation and prescription, making GIS chart, soil fertility resource analysis can be realized. With the system. The results showed that the soil fertility in this area was mainly middle level, and the ratio of soil area with high, middle and low fertility amount was to 30.5%, 41.5% and 28.0% respectively. Main reasons that affect the full utilization of soil fertility were soil fertility input
出处
《中国农业科学》
CAS
CSCD
北大核心
2002年第7期883-887,共5页
Scientia Agricultura Sinica
基金
石河子大学自然科学基金
国家"十五"重大攻关 (2 0 0 1BA5 0 7A0 4)支持项目
