佛坪县红星公社银厂沟大队,地处高寒的秦岭山区,是一条山陡、石多、土薄的狭长山沟。合作化初期,有人零星种过棉花,产量很低。因为种了不保收,多年来再也没人种植。1971年,银厂沟大队第二队试种一亩四分棉花(品种洞庭一号和克克1543),获得亩产皮棉77斤的好收成,打破了 Foping County Hongxing commune Yinchanggou brigade, is located in the alpine Qinling Mountains, is a steep, stone, thin earthy long ravine. In the early stage of cooperation, some people sporadically planted cotton and the yield was very low. No planted for many years because no planted. In 1971, the second team of the Yinchuan ditch brigade experimented with a quarter acre of cotton (variety Dongting No. 1 and Keke 1543), obtaining a good yield of 77 pounds per mu of lint, breaking