水稻监测信息系统的应用与改进

为改善农业气象情报服务效果,本文对气象部门1980—1985年水稻系统监测年报进行了整理分析。针对系统监测资料品种更迭频繁,地区生产力差异明显之特点,提出了品种生育期特征系数、品种分夔力与成穗力系数、品种产量系数等参数化特征值概念。通过对资料提供的166项信息的多元回归分析证实:采用组建分地区、分类型按发育进程的中近期配套模式系统,对发育进程和产量及其结构要素作动态追踪预测,现行资料已可用于实践使用,发育期追踪的剩余方差可缩小至1—4天。本文根据试验数据还对现行监测方法的正确性进行了分析,提出了改进意见。

APPLICATION AND IMPROVEMENT OF SUPERVISING INFORMATION SYSTEM OF RICE IN CHINA

This paper disscusses the regional service effect of the current supervising information system of rice in China according to about one thousand AGROMETEOROLOGICAL FORMS OF RICE NO: 1. It is proved that the information provided by the current system can be used in information forecasting service within provinces in south China, only if the growing period cofficients, the tillering and earing ability cofficients, and the yielding cofficients of varifies are introduced by taking the difference among the growing period of varities, their tillering and producting ability into accont, and the regions and the types of planting are classed according to climatic featuer. The effect is good. It is also proved that the precision of the current method for yielding analysis is low, and this affects its service quality. Observing precision and the service quality of the system can be improved if sampling number can be determind by density variance and proper sampling method is used.