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云南省金平县勐拉公社地处北纬22°32′、东经103°15′,拔海高度315公尺,位于藤条河沿岸,地势较平坦,土质为冲击沙壤土。气候温和,年平均温度23.2℃,终年无霜,年降雨量1574.7毫米,但冬干、春旱、夏涝、秋雨多。这个公社的坝区生产队,自发展双季稻以来,晚稻收获后稻田就休闲。一九七九年该公社的纳黄寨生产队,为改革耕作制度,增加复种指数,提高土壤肥力,进行了冬闲稻田黄豆品种试验和大田栽培试验。13.69亩大田,平均亩产112.8斤,比全公社大春黄豆平均亩产78.7斤增产34.1斤;品种试验中高的达225斤/亩。
Mengla commune in Jinping County of Yunnan Province is located at latitude 22 ° 32 ’north latitude, longitude 103 ° 15’ east longitude and 315 meters above sea level. It is located on the bank of the rattan river and has a flat terrain with sandy soils. The climate is mild, the average annual temperature of 23.2 ℃, frost-free throughout the year, the annual rainfall of 1574.7 mm, but the winter dry, dry spring, summer floods, autumn and more. The commune dam production team, since the development of double cropping rice, paddy fields after harvest late rice leisure. In 1979, the commune’s Naxhuangzhai Production Team conducted experiments on soybean varieties and field cultivation in winter and paddy fields in order to reform the farming system, increase the multiple cropping index and increase soil fertility. 13.69 acres of fields, an average of 112.8 kg per mu, than the average commune Amomum villosum 78.7 kg yield 34.1 kg; variety test up to 225 kg / mu.