如何在全苗壮苗的基础上争取“三桃”(伏前桃、伏桃、秋桃),达到增加产量、提高品质的目的,是棉花栽培技术的中心问题。这个问题在生产实践上具有现实意义,在理论研究上也有一定价值。本文试从以下三个方面,谈谈个人的一些看法和意见。 一、棉花生育特性及栽培条件 对“三桃”的影响 棉花是无限花序的植物。它在幼苗时期,一面生长叶枝,一面为蕾、花、桃的形成而积累营养物质;进入蕾期以后,边生长枝叶边现蕾开花结桃。在栽培技术上应特别重视棉花的营养生长与生殖生长的协调。耕作管理适当,营养生长与生殖生长就协调地进行;否则,就破坏了两者之间的协调关系。反映在生产中,出现三种不同类型的棉苗: How to strive for “Three Peach” (V Peach, V Peach, Autumn Peach) on the basis of full seedling and seedling to achieve the purpose of increasing yield and improving quality is the central issue of cotton cultivation technology. This issue has practical significance in production practice and also has some value in theoretical research. This article tries to talk about some personal views and opinions from the following three aspects. First, cotton growth characteristics and cultivation conditions on the “three peach” cotton is unlimited inflorescence plants. It is in the seedling stage, while growing leaf branches, one side for the bud, flower, peach formation and accumulation of nutrients; into the bud later, while growing branches and leaves buds blossom flowering peach. In cultivation techniques, special attention should be paid to the coordination between vegetative and reproductive growth of cotton. Proper tillage management, vegetative and reproductive growth in harmony; otherwise, undermine the coordination between the two relations. Reflected in the production, there are three different types of cotton seedlings: