我县棉田多为岗坡早薄地,土层薄,肥力低,不耐早涝,棉花产量低而不稳。从1980年开始,我们在遮山公社梁洼大队14生产队进行了冬季套犁深耕与一般耕犁对比试验。一般牛耕犁5一7寸的棉田,亩产皮棉78斤,深耕套犁l尺的亩产皮棉94个,增产21必,虫害减少14肠。深耕套犁的时间是在封冻前进行,前犁后,顺犁沟的犁底层,再犁一遍,让其晾生,充分霜冻风化接纳雨雪;早春结合施肥掩粪,浅 Cotton fields in our county are mostly thin slope early in the slope, with thin layers, low fertility, impatience and early flood, low and unstable cotton yield. Since 1980, we have carried out the winter plow plowing and general plowing comparison tests in the production team of Liangwa Brigade 14 in the Yanshan Commune. General cattle plow 5 to 7-inch cotton fields, 78 kg of lint per mu, deep plow l-fur of l-mu of lint yield 94, an increase of 21 will be reduced by 14 intestinal pests. Plow deep plowing time is frozen before the plow, plow the furrow along the ground, and then plow it again, let it dry, full of frost and weather to accept the rain and snow; early spring combined with fertilizer manure, shallow