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棉花免中耕是指棉花从出苗到收获前不进行中耕。1980年以来我们运用这项技术,经过多点试验和大田示范,初步取得成效。1980年试验面积418亩,全部增产,平均较对照(多次深中耕,下同)增产11.9％。1981年面积达10,157亩,较对照增产17.8％。1982年全县已大面积推广这项技术。通过现场观摩,总结经验,普遍认为这是棉花生产上的一项省劳、省工,降低成本的经济有效措施。一、主要特点经过几年来的试验、示范和研究工作,可以
Cotton-free tillage means that cotton is not planted before emergence until harvest. Since 1980, we have applied this technology and achieved initial success through trial and demonstration in various fields. Experimental area of 418 acres in 1980, all increase production, an average of more than the control (multiple deep plowing, the same below) an increase of 11.9%. In 1981 an area of 10,157 acres, an increase of 17.8% over the control. In 1982 the county has a large area to promote this technology. Through observing on the spot and summing up experience, it is generally considered as a cost-effective measure to save labor and save labor in cotton production. First, the main features After several years of testing, demonstration and research work, you can