摘要
鱼台县棉花苗期病害主要有立枯病、炭疽病和褐斑病等。结合5月温度、降水和光照等气象条件,对该县棉花苗期常见病害的发生程度进行了分析。结果表明:温度、降水和光照条件与棉花苗期病害的发生有密切关系,其中5月上中旬降水过多,空气和田间土壤湿度过大,有利于棉花苗期病害的发生,在此期间,如果气温过低,再加上连续阴天,田间光照不足,就会使棉花苗期病害严重发生。
Cotton seedling diseases in Yutai County are blight, anthracnose, leaf spot and so on. Combined with temperature, precipitation, light and other weather conditions in May, the occurrence degree of cotton seedling common diseases in Yutai County was analyzed. The results showed that temperature, precipitation and light conditions were closely related to the occurrence of cotton seedling diseases, including excessive rainfall, large moisture of air and field soil in early and middle of May were conducive to the occurrence of cotton seedling diseases. In the meantime, if the temperature was too low, coupled with continuous cloudy and field illumination was insufficient, it will make a serious outbreak of cotton seedling diseases.
出处
《河北农业科学》
2013年第4期40-42,52,共4页
Journal of Hebei Agricultural Sciences
关键词
棉花
苗期病害
温度
降水
光照
Cotton
Seedling diseases
Temperature
Precipitation
Light
