1. Cause fire. Burning straw is very easy to ignite the surrounding flammable materials, and once it causes a fire in the wheat field, it is often difficult to control and cause economic losses. There are cases where there are cases where there are cases of casualties.

2. Damage the soil structure and cause the quality of farmland to decline. Straw burning also enters the ground for three parts, microorganisms on the surface are burned, humus, organic matter are mineralized, field burning straw destroys the balance of this biological system, changes the physical properties of the soil, aggravates soil compaction, destroys soil strength, aggravates drought, and affects the growth of crops. So everyone should pay attention.

3. Produce a large number of toxic and harmful substances, threatening the health of people and other organisms. The smoke produced by straw burning contains large amounts of nitrogen oxides, photochemical oxidants and suspended particles. When the concentration of inhalable particles reaches a certain level, the part of the human eyes, nose and throat containing mucous membranes is more irritating, and it can cause cough, chest tightness, tearing, and in severe cases, it may lead to bronchitis. The straw burning area and time period are relatively concentrated, and a large amount of smoke has a great impact on middle-aged and elderly people, children and people suffering from respiratory diseases.

4. Polluting the atmospheric environment, crop straw contains nitrogen, phosphorus, potassium, hydrocarbons and organic sulfur. In particular, the freshly harvested straw has not yet dried out, and incomplete combustion will produce a large number of nitrogen oxides, sulfur dioxide, hydrocarbons and soot, and nitrogen oxides and hydrocarbons may also produce secondary pollutants such as ozone under the action of sunlight. Moreover, when straw is burned, the three pollution indexes of sulfur dioxide, nitrogen dioxide and inhalable particulate matter in the atmosphere reach a high peak.