棉籽硫酸脱绒的作用,在于防治角斑病和便于机播时顺利下种。但过去多采用高温脱绒法,此法工效低,工作人员危险性大(易被硫酸烧伤),且棉籽烧伤率达58％左右。在多年的实践中我们摸索出一套工效高、成本低,安全可靠的硫酸低温脱绒法,也简称“冷脱法”。 “冷脱法”就是硫酸不经加温,在正常气温下依靠搅拌和堆闷而脱去短 The role of cottonseed sulfuric acid velvet, is to control angular leaf spot and easy to broadcast when the next species. However, in the past, the use of high temperature de-velvet method, the law ineffective, staff dangerous (easily burned by sulfuric acid), and cottonseed burn rate of about 58%. In many years of practice, we have explored a set of high efficiency, low cost, safe and reliable sulfuric acid low temperature de-velvet method, also referred to as “cold off method.” “Cold off France” is the sulfuric acid without warming, relying on mixing in the normal temperature and stuffy boring and short