Cotton is an important oil crop, which can be used to extract oil. Its oil content is very high, generally reaching 20-60%, and it can produce about two kilograms of oil per kilogram on average, but its oil yield is not fixed. Generally, if the seeds are full, the oil yield will be higher. : Cotton is a crop because it is a plant planted in agriculture. Its output is large and its production cost is relatively low. This is a very important crop. Cotton is a tropical crop and a common subtropical crop. Generally, it can grow to about 6 meters in tropical areas, and it is more common in southern areas, belonging to southern crops. Cotton is an economic crop with high economic value. Generally, it can be used to extract oil, and it can also be made into many fabrics with different specifications. It can also be used in some skin care and anti-wrinkle beauty products. Cotton is not a sugar crop, it is not used to make sugar, and it is not a crop with banned chlorine. Generally, the amount of chloride ion has little effect on cotton.