多年来的实践证明,棉花品质在年际之间差异较大,并与絮期的气象因素密切相关,但对其主导因素说法不一。众所周知,棉花的收购品级,属于外在品质,其绝对值愈小品质愈好,并与内在品质有一定联系。本文试图根据南阳盆地1973——1983年棉花的收购品级和对应年份絮期(8——10月份)的主要气象因素——日照,气温、雨量、相对湿度等进行统计分析,从中寻求主导因素,提出趋利避害的有效措施。 Many years of practice have proved that the quality of cotton varies greatly between years and is closely related to the meteorological factors of flocculation period, but the dominant factors are different. As we all know, the acquisition of cotton grade, is an external quality, the smaller the absolute value of the quality of the better, and have some contact with the intrinsic quality. This article tries to find the dominant factors according to the statistical analysis of the main meteorological factors of the purchasing grade of cotton from 1973 to 1983 in Nanyang Basin and the corresponding vintage flours (August to October): sunshine, temperature, rainfall and relative humidity, Put forward the effective measures to avoid disadvantages.