包膜氮肥肥效周期长,其养分可根据作物生长期的需求和外界环境温度的变化控制供应,达到养分供应速度和作物需求基本同步。目前,在棉花生产中,常规施氮以基追结合为主,不仅劳动强度大,而且中后期追氮对棉花果枝的伤害较多。鉴此,笔者进行了棉花施用包膜氮肥效果研究,以期为棉花 Coated nitrogen fertilizer cycle, the nutrient can be based on the needs of crop growth period and the external environment temperature control changes in supply, to achieve the basic nutrient supply speed and crop demand synchronization. At present, in cotton production, conventional nitrogen application is mainly based on the combination of chasing and chasing, which not only results in labor intensity but also has more damage to the cotton fruit branch in the late and late stage. In view of this, I conducted a study of the effect of cotton coated nitrogen fertilizer, with a view to cotton