棉花的生育规律以及产量品质,不仅受环境生态因素如温度、水分、光照和养分的影响,也受物理、化学和生物科学新技术如激光、激素、超声波和同位素等的影响。对环境生态因子等方面的研究,前人已作了大 The fertility and yield quality of cotton are affected not only by environmental and ecological factors such as temperature, moisture, light and nutrients, but also by new physical, chemical and biological technologies such as lasers, hormones, ultrasonics and isotopes. On the ecological environment factors such as research, predecessors have made a big