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昭通坝子位于北纬27°21′,东经103°43′;农田海拔1950米左右,年均温11.6℃,年雨量780毫米,无霜期240天,全年≥10℃积温3217℃,全年日照时数1918小时,属低纬高海拔冷凉稻区。水稻生产受两头低温,中间积温又不足的影响,长期不高不稳,平均单产一直在三、五百斤上下徘徊。 1982年以来,示范推广了
Zhaotong Bazi is located at latitude 27 ° 21’N and longitude 103 ° 43’E. The farmland is about 1950 meters above sea level with an annual average temperature of 11.6 ℃ and an annual rainfall of 780 mm. The frost-free period is 240 days. The annual accumulated temperature of ≥10 ℃ is 3217 ℃, 1918 hours, is a low latitude and high altitude cold and cold rice area. Rice production by the two low temperatures, the middle temperature and lack of influence, long-term instability, the average yield has been hovering in the three or five pounds. Since 1982, the demonstration has been promoted