Economic value of cotton
Cotton is one of the most important crops in the world. Its high yield and low production cost make the price of cotton products relatively low. Cotton fiber can be made into a variety of fabrics, from light and transparent Bari yarn to thick canvas and thick velveteen, suitable for making all kinds of clothes, furniture cloth and industrial cloth. Cotton fabric is firm and wear-resistant, and can be washed and ironed at high temperature. Cotton fabric is comfortable to wear because of its rapid moisture absorption and dehumidification. If it is required to keep warm, the surface of the fabric can be fluffed by brushed finishing. Through other finishing processes, the cotton fabric can also be antifouling, waterproof and mildew resistant; Improve the wrinkle resistance of the fabric, so that the cotton fabric needs less ironing or even no ironing; Reduce the shrinkage of fabric during washing, so that the shrinkage rate does not exceed 1%.
The countries with the highest cotton production are China, the United States, India, Brazil, Mexico, Egypt, Pakistan, Turkey, Argentina and Sudan.
Cotton can be made into fabrics of various specifications. Cotton fabric is strong and durable, and can be washed and ironed at high temperature. Cotton fabric absorbs moisture and dehumidifies quickly to make it comfortable to wear. The main and by-products of cotton have high utilization value. As predecessors said, "cotton is treasure all over the body". It is not only the most important fiber crop, but also an important oil crop. It is also a food crop with high protein content, as well as textile, fine chemical raw materials and important strategic materials. Therefore, efforts must be made to increase cotton production, improve comprehensive utilization, increase production and value, so as to increase the income of cotton farmers and meet the needs of various aspects of national economic development.
Another unique use of cotton is a beauty product for skin care and wrinkle resistance.
Cotton is also an important nectar source plant:
Cotton is divided into leaf veins, bracts and floral nectaries, which usually secrete honey before flowering. The florescence of cotton in the provinces of the middle and lower reaches of the Yangtze River is from late July to early September, the provinces of the middle and lower reaches of the Yellow River are from early July to early August, and Turpan in Xinjiang is from mid July to early September. The period of big honey flow is about 40 days, and the suitable temperature for honey secretion is 35 ℃. The general group of cotton in Xinjiang produces 10-30kg honey, up to 150kg. In other cotton areas, due to the frequent application of pesticides during the flowering period, the injured bees are too heavy, and the utilization value of honey source is greatly reduced, and the group yield is generally 10~20kg. Since the 1980s, the cotton area in China has increased rapidly, and some provinces and regions have actively promoted biological control technology, which has become the main nectar source in summer and autumn.