近两年来,随着棉花营养钵育苗移栽面积的扩大和徐州142新品种的推广,我社不断降低棉花种植密度。我们从本地土质条件差、土壤肥力偏低、棉花易发易衰的实际情况出发,在坚持做到培肥钵土、施足安家肥的情况下,改进棉花花铃肥的施用技术,采用“两把劲”施肥法。经过两年专题试验和大面积生产实践,都取得了较好的效果。我们的试验是土质、密度、栽培条件、施肥量相同,施肥时间不 In the recent two years, with the expansion of transplanted cotton seedling nursery bowl and the promotion of 142 new varieties of Xuzhou, CCS has been continuously reducing the planting density of cotton. We from the local poor soil conditions, low soil fertility, cotton prone to the actual situation of easy to decline, insist on doing fertility bowl soil, Shi Zuofanjiafei case, improve cotton boll fertilizer application technology, the use of “ Two hard ”fertilization method. After two years of special experiments and large-scale production practices, we have achieved good results. Our test is soil quality, density, cultivation conditions, the same amount of fertilizer, fertilization time is not