合理密植是棉花增产的关键,而棉花全苗是合理密植的基础。要实现合理密植,首先必须全苗。棉花全苗,不只是从数量上看,还要从质量上看。在保证全苗的同时,还要苗齐、苗匀、苗壮,才能在密度上达到合理,管理上争得主动。我省棉区分布广阔,条件复杂,历年棉田都有不同程度的缺苗,影响棉花增产。形成棉花缺苗的原因很多,不同棉区的情况也有所不同。旱地棉区主要是春旱威胁,出苗 Reasonable close planting is the key to cotton yield, and cotton seedling is the basis of close planting density. To achieve a reasonable close planting, we must first of all seedlings. Cotton seedlings, not only from the quantitative point of view, but also from the quality point of view. In ensuring the whole seedlings at the same time, but also Miao Qi, Miao Miao, Zhuang Zhuang, in order to achieve a reasonable density, managed to gain the initiative. Cotton area in our province is widely distributed and the conditions are complicated. In the past years, cotton fields have varying degrees of lack of seedlings, affecting cotton yield. There are many reasons for the formation of cotton seedlings. The situation in different cotton areas is also different. Dry cotton area is the main threat to spring drought, emergence