In the autumn harvest season, some farmers’ friends are taking care of the situation and often burn the crop stalks directly in the field, resulting in wolf smoke. As everyone knows, this is very harmful.
First, it is easy to cause fire and cause undue losses. Especially in the vicinity of the mountains, once the fire is triggered, the consequences will be disastrous.
The second is pollution of the environment. The flue gas produced by the burning of crop straw not only affects the normal production and living of the local residents, but also causes serious pollution to the atmosphere. According to statistics, when the straws were burned, the three pollution indexes of sulfur dioxide, nitrogen dioxide and respirable particles in the atmosphere reached a high peak. The concentration of sulfur dioxide was twice as high as usual, and the concentration of nitrogen dioxide and respirable particles was higher than usual. Out of 3 times, equivalent to the five levels of daily average concentration. When the concentration of respirable particles reaches a certain level, the part of the human eye, nose, and throat containing mucous membranes stimulates more, and when it is light, it causes coughing, chest tightness, and tearing. In severe cases, it may cause bronchitis. According to a Japanese study, it is confirmed that about 20% to 40% of the carcinogenic substances in the atmosphere come from the biochar produced when the plants are burning.
Third, it is easy to cause traffic accidents and affect road traffic and aviation safety. The smoke formed from the burning of straw causes the visibility of the air to decrease, the visible range is reduced, and it is easy to cause traffic accidents.
The fourth is to destroy the soil structure and reduce the quality of cultivated land. Incineration of straw increases the temperature of the ground and burns and burns the beneficial microorganisms in the soil directly. This affects the full absorption of soil nutrients by crops, directly affects the yield and quality of crops, and affects agricultural income.
Fifth, it is a waste of resources. Crop stalks have many uses and can be used as feedstuffs and fertilizers (an acre of corn stalk equivalent to 4000 kg of soil miscellaneous fertilizer, 18 kg of ammonium bicarbonate, 10 kg of superphosphate, 8 kg of potassium fertilizer), edible mushroom culture materials and industrial raw materials; field burning It is a great waste of straw resources. Some studies have shown that the benefit of yield increase after crop stalk ash burning is 10 times lower than that of direct sorghum, 100 times lower than that of straw comminution and fermentation, and it is less than the value-added benefits of pigs fed with slag after smashing. 1000 times.
To this end, the general farmers are urged not to burn crop stalks in the fields.
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