What crop is straw?

Straw, also known as straw grass in ancient times, refers to the remaining stems and leaves of gramineous crops such as rice, wheat and corn after ripening and threshing. The straw of rice is usually called straw and rice, and the straw of wheat is called straw. Before industrialization, farmers used straw in a variety of ways, which were very rich. For example, in southern China, people dry rice stalks and store them, which can be used as firewood, weaving cushions, mattresses, brooms and other household items, laying animal pens, feeding livestock, composting, and even making roofs in simple houses, with little direct waste. Due to the popularization of coal, electricity and natural gas and the richness of various industrial products in China in the past two decades, the demand for straw in rural areas has decreased, and the treatment of a large number of straw has become a serious social problem. Although it is forbidden by law, farmers in many places still burn straw directly in the fields, causing air pollution, fire and planes can't take off and land normally. The burning of straw has also caused pollution in Taiwan Province Province, which has always caused public grievances. The Environmental Protection Bureau pointed out that burying straw immediately during harvesting will not only cause air pollution, but also be a better fertilization method.

building material

Straw is an efficient and long-lasting raw material for light industry, textile and building materials, which can partially replace bricks, wood and other materials and effectively protect cultivated land and forest resources. Straw wallboard is superior in heat preservation, decoration and durability. In many developed countries, "straw board" is widely used as a substitute for wooden boards and tiles in the construction industry. In addition, the straw treated by technical methods can also be used to make rayon and rayon, produce furfural, maltose, wine and xylitol, and process fiberboard.

Traditional asbestos tile not only contains carcinogenic components, but also has short service life, perishable, pollution and unsightly appearance, so it is forbidden to be used. However, it is difficult to solve the problems of high cost, short service life, no sound and heat insulation and easy rusting. In view of many problems existing in traditional building materials, relying on their excellent quality and the support of national policies, the products of eco-straw regenerated colored tiles and eco-inorganic composite wheat straw boards have the characteristics of high strength, no deformation, no shelling, anti-aging, nailability, sawability, creativity, drillability, strong nail grip, good processability, excellent physical properties, low cost, no pollution and no radioactivity. The demand for colored tiles in the domestic construction industry has risen sharply, which has effectively promoted the rapid development of this emerging industry and has a large market space. It is the replacement product of traditional ceramic tiles and decorative boards.