摘要
[目的]研究长沙地区早稻播种气候条件及农业气象服务。[方法]利用长沙市1910～2011年气候资料,采用统计分析方法,对长沙地区早稻播种气候条件进行了分析,并根据早稻播种农业气象指标,确定该地区早稻播种期,揭示早稻播种育秧与气候条件的关系。[结果]长沙市日平均气温稳定通过10℃初日出现时段以3月26～31日最多,其次为3月16～20日,再次为3月21～25日;该地区早稻播种期可分为3批进行:薄膜覆盖育秧和旱育秧可在春分边播种;水育秧大面积育秧可在春分后抢住冷尾暖头下泥;油菜田、草子留种田可在4月初抢住冷尾暖头播种。[结论]该研究为长沙地区早稻播种提供科学理论依据。
[Objective] To study the climate conditions and agriculture meteorological services of early rice planting in Changsha area.[Method] Using the climatological data from 1910 to 2011 in Changsha City and adopting the method of statistical analysis,the climate conditions of early rice planting in Changsha area were analyzed;the planting period of early rice was determined by the agro-meteorological indicators of early rice planting,the relationship between early rice planting and climatic conditions has been revealed.[Result] The period of the first date for the daily temperature to steadily pass 10 ℃ was the most on March 26 to 31,followed by March 16 to 20 and March 21 to 25.The early rice planting period can be divided into three batches： the film-covered seedling and dry seedbed can be planted around vernal equinox;large-area water sprout should be cultivated after vernal equinox before the temperature gets warming;the rape fields and grass stay in farming can be planted in April when the weather is neither too hot nor too cold.[Conclusion] The study provides scientific basis for the sowing of eary rice in Changsha.
出处
《安徽农业科学》
CAS
2012年第23期11763-11764,11790,共3页
Journal of Anhui Agricultural Sciences
关键词
早稻播种
气候条件
分析
服务
长沙地区
Early rice planting
Climate condition
Analysis
Service
Changsha
