棉花具有无限生长习性,在适宜的条件下,生长时间越长,越易于夺高产。近年来,大面积推广营养钵育苗,就是在早春低温的情况下,采用保护栽培育苗,延长棉花生育期,从而达到早发、早现蕾、多结铃、高产。但营养钵育苗技术较为复杂,工本较高,且因早春气候多变,出苗率较低。群众说:“营养钵育苗方法虽好,就是费工搭本难逮全苗”。为解决这个问题,我们进行了多年的探讨。1989年,我们从水稻两段育秧中受到启示,利用60年代棉芽移栽的成功经验,搞了 Cotton has an infinite habit of growth, under the right conditions, the longer the growth, the easier it is to win high yield. In recent years, large-scale popularization of nutrition bowl nursery, is the case of low temperature in early spring, the use of conservation and culture nursery, to extend the growth period of cotton, so as to achieve early onset, early budding, bolwing, high yield. However, nutrient bowl breeding technology is more complex, higher cost, and because of the early spring climate change, the emergence rate is low. The masses said: “Nutrition Bowl nursery method is good, it is hard to catch the whole seedlings.” To solve this problem, we conducted years of discussion. In 1989, we were inspired by two stages of rice seedling raising. Using the successful cotton transplanting experience in the 1960s,