玉米栽培管理知识模型系统的设计与实现

在广泛搜集整理玉米栽培管理知识、数据和专家经验的基础上,对玉米生育指标和调控技术的地域性和季节性变异规律进行系统分析和量化表示,构建了基于作物-环境关系的、可适用于不同时空环境的玉米栽培管理知识模型系统.系统功能主要包括播前技术方案设计和产中动态调控指标预测两大部分.播前方案设计按照玉米栽培管理流程和生育进程来设计,具体包括:产量目标确定、品种选择和品质目标、播期确定、密度和播种量设计以及水肥管理等;产中动态调控生育指标主要考虑叶龄指数、叶面积指数、干物质积累和粒叶比.该系统克服了传统专家系统区域性、分散

Design and Implementation of a Knowledge Model System for Maize Management

On the basis of relationship between crops and circumstances, by u sing system method and quantitative analysis approach on the maize developing in dexes and control technique, a dynamic knowledge model system of maize managemen t, which can be used in different places and conditions, was developed. the resu lt of examinations indicates that this model overcomes the shortcomings of tradi tional expert system, such as site specific and narrow applicability, and can be used more popularly. As a result, This model provides scientific knowledge syst em and broad decision-making tool for maize management .