论文部分内容阅读
马风台大队中心植棉组1977年在一块新平整的生土地上种棉花17亩,亩产皮棉154.2斤,其中有出苗发育早的6.2亩,亩产皮棉174斤,夺得了高产丰收。生土地的棉花在前期常苗弱迟发,中后期呈脱力早衰,加之密度小,打顶迟,甚至有的不打顶尖,不少果节蕾而不花,有的成桃太晚,产量很低,对棉花的全面增产影响极大。植棉组为了摸索生土地棉花的增产技术,在学习“集中施肥,起垅点播”经验的基础上,采取细备耕、高密度、早打顶、促早发等得力措施,效果较好,现简结如下:
Ma Fengtai Brigade Center Cotton Planting Group In 1977, 17 mu of cotton was planted on a newly planted land with a yield of 154.2 kg of lint per mu, among which 6.2 mu was emergently developed and 174 kg per mu were lint, yielding a high yield. The raw cotton in the early stage of Changmiao weak late, early and late decline in strength, coupled with the density of small, topping late, and even some do not hit the top, many fruit buds without flowers, and some too late, yield Very low, a significant impact on the overall increase in cotton production. In order to find out the cotton yield increasing technology of raw land, the cotton-planting group, taking the experience of “concentrating fertilization and starting on-demand”, adopted fine tillage, high-density, early-top- Brief summary is as follows: