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一、示范区的基本情况 示范区选择在南昌县历年螟害发生最严重的向塘、吴石两个区,沙潭等10个乡,共有水田面积154,457亩。其中:双季稻田占35.42%;一季早稻田占43.36%;一季晚稻田占21.22%。栽培制度极为复杂,群众有“栽要栽到秋,割要过霜降”的说法,恰当的形容了水稻移栽、收割的连贯性,因此也就为三化螟的生长繁殖创造了有利条件。解放
I. Basic Conditions of the Demonstration Area Demonstration Area Select 10 townships such as Xiangtan, Wushi two districts and Shatan which have the worst occurrence in the past years in Nanchang County. The total area of paddy fields is 154,457 mu. Among them, the double paddy fields accounted for 35.42%, the first paddy fields accounted for 43.36% and the second paddy fields accounted for 21.22% of the total. Cultivation system is extremely complex, the masses have “planted to autumn planted, cut to frost” argument, aptly described the transplanting rice, harvesting consistency, it also for the growth and reproduction of rice borer has created favorable conditions. liberation