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鄂西自治州属于山区,在海拔200—1300米的地区均可种植水稻,以800—1200米的二高山面积较大,占一半以上。其气候特点是:日照少,日照率仅28%左右;气温低,8月水稻穗期气温22℃左右;雨量多、湿度大,年雨量在1500—1700毫米,仅8月份雨日就有16天左右,全年雾多露重,相对湿度常达80%以上,这样的气候条件很适合稻瘟病流行。八十年代以来,随着杂交稻的发展,
Hubei Autonomous Prefecture belongs to the mountainous area, and rice can be planted in the area of 200-1300 meters above sea level. The area of the two high mountains with 800-1200 meters is larger, accounting for more than half. The climate is characterized by: a small sunshine, the sunshine rate of only about 28%; low temperature, August paddy temperature of about 22 ℃; rainfall, humidity, annual rainfall in 1500-1700 mm, only the rainy day in August 16 Days or so, heavy fog throughout the year, the relative humidity often up to 80%, this climate is suitable for the epidemic of rice blast. Since the eighties, with the development of hybrid rice,