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1998年在云南省永胜县涛源乡 (2 6°10′Ｎ ,10 0°2 2′Ｅ ,海拔 1170～ 12 0 0ｍ) ,大区种植来自云南、四川、福建、广东等省 9个水稻超高产品种 ,面积 70 0ｍ2 左右 ,以当地精细技术进行栽培。同时征集各省新近育成的 2 0个超高产水稻品种 ,进行小区对比试验 ,小区面积 12ｍ
In 1998, Yunnan Province, Tao County, Yongsheng County (2 6 ° 10’N, 10 0 ° 2 2’E, elevation 1170 ~ 1200m), planting large areas from Yunnan, Sichuan, Fujian, Guangdong and other provinces 9 Rice super-high-yield variety, an area of 70 0m2 or so, with local fine technology for cultivation. At the same time collecting the newly bred 20 provinces super-high yielding rice varieties, the district comparative test, the plot area of 12m