柏家沟公社柏家沟大队第九生产队共有耕地1,285亩。其中岗地占64%.有400亩“挂画地”,砂石裸露,土质瘠薄,亩产只有170～180斤。1970年以来,他们在“农业学大寨”的群众运动中,认真落实农业“八字宪法”,大搞科学种田.农业生产连年丰收。1970年粮食单产430斤,超过了 Baijiagou commune Baijiagou Brigade ninth production team a total of 1,285 acres of arable land. Among them, 64% are posts, and there are 400 mu “hanging picture”, with bare gravel and infertile soil, only 170-180 kg per mu. Since 1970, they have earnestly implemented the “eight-character constitution” of agriculture in the mass movement of "learning from Dazhai in agriculture and vigorously engaged in scientific farming, and harvesting of agricultural production year after year. The grain yield in 1970 was 430 kg, more than that