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近几年来,我国棉花育苗移栽发展很快。一九七六年据不完全统计,全国棉花移栽面积近六百万亩,比一九六五年增加六倍多。不仅育苗移栽技术有显著发展,而且应用范围日益扩大,具有早熟、增产、节约用种、战胜灾害保全苗、充分利用生长季节、提高复种指数的效果,显示出了很大的生命力。各地在这方面积累了丰富的经验,认真总结和推广育苗移栽的先进技术,对于发展棉花生产有重要意义。这里就春季和夏季(麦后)移栽棉花的几个主要技术问题作一简单说明,供各地参考。一、春季棉花育苗移栽(一)春季棉花育苗移栽的应用。目前,棉花育苗移栽主要应用在以下几个方面:
In recent years, China’s cotton seedling transplanting developed rapidly. In 1976, according to incomplete statistics, the transplanted area of cotton in the entire country was nearly 6 million mu, an increase of more than six times that of 1965. Not only has the seedling transplanting technology developed prominently, but also its scope of application has been expanding. It has shown great vitality by being premature, increasing production, saving seed, defending seedlings for disaster protection, making full use of the growing season, and improving the effect of multiple cropping. All over the country have accumulated rich experience in this regard, earnestly sum up and promote the advanced technology of seedling transplanting, for the development of cotton production is of great significance. Here for spring and summer (after wheat) cotton transplanted a few major technical issues for a brief description, for reference. First, the spring cotton seedling transplanting (A) Spring cotton seedling transplanting application. At present, cotton seedling transplanting is mainly used in the following areas: