Author expatiates framework design method of model library system in agricultural information decision support systems and the process of form model in cost benefit analysis.
阐述了农业信息决策支持系统中模型库系统结构设计方法，以及经济效益分析的构模过程。
2
The mathematical model established on the basis of agriculturalsystem principle and method is used to analysis the effects of SRI technique on effective tiller.
采用农业系统原理和方法，建立数学模型，分析了SRI栽培技术对有效分蘖的影响。
3
This article applies a GM (1, 1) model of Grey System Theory established to forecasts the agricultural water demand of an area in northern China.