农艺和农机相互适应是加快实现农业机械化的重要因素。许多国家在这方面是比较重视的,并且已取得了显著的效果,下面介绍几个例子。美国实现采棉机械化就是农艺和农机相互适应的结果美国一八五○年就开始研制采棉机,百年之后,到一九四九年棉花收获机械化的程度仅达百分之六,进展缓慢。但到一九六四年,棉花收获基本上实现了机械化。一九七○年棉花收获机械化高达百分之九十五,居世界第一位。为什么后二十年进展那么快呢?很重 Agronomy and agricultural adaptation to each other is to speed up the realization of agricultural mechanization important factor. Many countries attach more importance to this aspect and have achieved remarkable results. Here are a few examples. Mechanization of cotton picking in the United States is the result of agronomic and agricultural adaptation. As the United States started to develop cotton harvesters in 1850, only a 6% reduction in the mechanization of cotton harvest by 1949 was achieved and the progress was slow. By 1964, however, cotton harvesting was basically mechanized. In 1970 cotton harvesting mechanized up to 95%, ranking first in the world. Why is it going so fast after twenty years?