1.Compared with spring sowing plots during autumn harvest, farmers can prepare for land preparation 10 to 15 days in advance. 2. Save water for irrigation Because the fall-turned land can be used for early boring and early preparation, there is no scorpion, and the irrigation water can save about 50 cubic meters per mu compared with the spring-turned land. 3. Improvement of soil properties After long-term irrigation in paddy fields, the soil is cold-pile and has poor air permeability. After the fall, after the winter freezing, the spring wind and sun, dry and wet freezing and thawing, etc., can loosen the soil, enhance soil permeability, accelerate soil aging, improve soil nutrient supply capacity. In the heavier lands of saline-alkali land, the fall can turn the topsoil with high salt content to the lower layer, and can cut off the capillary of the tillage layer, reduce the rate of salt rise in the lower layer, reduce the accumulation of salt, increase soil permeability, and increase the soil and water during irrigation. The contact surface is conducive to washing the salt. 4. Diseases, pests, and weeds Harmful damage to paddy fields, pathogenic bacteria, eggs, and root destruction of perennial weeds. It also reduces the content of harmful substances such as hydrogen sulfide in the soil, which is conducive to rice growth and development. Imported Premium Fire Retardant Flame retardants, functional auxiliaries endowed with inflammable polymer flammability, mainly designed for flame retardancy of polymer materials; There are many types of flame retardants, which can be divided into additive flame retardants and reactive flame retardants according to their usage. Imported Premium Fire Retardant,Flame Retardant Cresyl Diphenyl Phosphate,Plasticized Flame Retardant,Flame Retardant Abs Xingbang High Molecular Materials Co., Ltd. , https://www.chemicaladditive.com
The additive type flame retardant is added to the polymer by mechanical mixing method to make the polymer flame retardant. At present, the additive type flame retardant mainly includes organic flame retardant and inorganic flame retardant, halogenated flame retardant (organic chloride and organic bromide) and non-halogenated flame retardant. Organics are some flame retardants represented by bromine, phosphorus and nitrogen systems, nitrogen systems, red phosphorus and compounds, while inorganic flame retardants are mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide and silicon systems.