摘要
稻飞虱是影响江西水稻生产的主要害虫,其发生发展与气象条件关系密切。本文基于统计学、物候学方法,分析确定气温25～29℃且相对湿度在75%以上为稻飞虱繁殖为害的适宜气象条件;以具有生物学意义的湿温比（R）作为稻飞虱气象等级监测预警指标,R〉6、3%@
Rice Plant Hopper is one of the main pests in the rice production in Jiangxi Province and its occurrence is closely correlated to the meteorological conditions. Based on statistical and phenological analysis, it was confirmed that the air temperature at 25 -2922 and relative humidity higher than 75% were the suitable meteorological conditions for the reproduction and outbreak of the rice plant hopper. The index R, defined as the ratio of the air temperature to the relative humidity, was used as the index for monitoring and warning of the meteorological grades for the Rice Plant Hopper. R 〉 6, 3 〈 R≤6 and R ≤ 3 was represented the easy, relative easy and uneasy meteorological condition for the occurrence of the Rice Plant Hopper respectively. The results verified by the historical data and application analysis showed that the index R could indicate the meteorological suitability for and be used to make scientific decision for the Rice Plant Hopper prevention.
出处
《中国农业气象》
CSCD
2008年第3期371-374,共4页
Chinese Journal of Agrometeorology
基金
中国气象局2005年气象新技术推广项目重点项目"主要病虫害发生发展气象条件预报与影响评价"(CMATG2005Z02)
关键词
稻飞虱
气象等级
监测
Rice Plant Hopper
Meteorological grade
Monitoring
