信息技术在测土配方施肥中的运用

Application of Information Technology in Soil Determination and Prescription Fertilization

论述了国外欧美等发达国家信息技术在土壤养分管理和施肥技术上的运用特点,分析了中国测土配方施肥对信息技术的要求、发展趋势,提出了中国目前测土配方施肥信息化处理的要求、任务和内容,分析了县市农业技术推广部门在测土配方施肥运用信息技术存在的问题。测土配方施肥中信息技术的运用主要包括:(1)应用数据库技术和地理信息系统,按照标准处理和整理土壤肥料等数据和相关图件,建立属性数据库和空间数据库与管理系统;(2)利用地理信息系统和基础数据库,结合应用模型,建立耕地地力评价系统、施肥决策系统等测土配方施肥应用系统;(3)将网络技术与已建立的应用系统结合起来,实现数据库的共享化和测土配方施肥的网络化。

This paper discussed the characteristic of information technology applied on son nument management and fertilizing technology in occident, analyzed the requests of soil determination and prescription fertilization for information technology and it developing trend in china, pointed out the requests, tasks and contents of information processing in it at present in our country, and analyzed the existing problems at agricultural technology extension station in counties. The application of information technology in soil determination and prescription fertilization was mainly concluded as follow, （1） applying the database technology and GIS, and processing the data about soil and fertilizer and the maps connected according to the standard, to establish the attribute database and space database, and management system. （2） using GIS and database, combining the application, to establish application system such as tilth estimate system and applying decision system.（3）utilizing network technology to realize database sharing and long-distance applying decision on web.