Device for straw returning and leveling of paddy fields

Abstract

The invention discloses a device for straw returning and leveling of paddy fields. The device comprises a power device, a cross arm, a frame body device and a grass raising device, and is characterized in that a frame body comprises a longitudinal sliding plate, a transverse floating sliding leveling plate and an axle seat positioning plate; the grass raising device comprises transverse grass raising serrated knives, longitudinal grass raising blades and a roller; axle heads at two ends of the roller are connected with an axle seat arranged on the frame body; the transverse grass raising serrated knives are embedded on the periphery of the roller; the longitudinal grass raising blades are distributed among the transverse grass raising serrated knives at intervals; two ends of the longitudinal grass raising blade are positioned on back of the transverse grass raising serrated knife; and the longitudinal grass raising blades and the transverse grass raising serrated knives form a longitudinal and transverse grass raising net. The device has a simple structure and low manufacture cost, is convenient to use, can uniformly raise all straws into soil to be corroded into organic fertilizer after reaping, improves the biological activity of soil, reduces the alkalinity of soil, promotes the acid-base balance of soil, loosens the soil texture, improves the soil aeration, reduces the ploughing specific resistance, improves the soil organic matter, optimizes the soil structure, reduces pollution and protects the environment.

Description

technical field [0001] The invention relates to a straw returning device, in particular to a paddy straw returning and leveling device. Background technique [0002] Straw contains elements such as nitrogen, phosphorus, potassium, magnesium, calcium and sulfur, which are exactly the nutrients necessary for the growth of crops. According to relevant statistics, my country produces 600 million tons of straw every year, including more than 3 million tons of nitrogen, more than 700,000 tons of phosphorus, and more than 7 million tons of potassium, which is equivalent to more than a quarter of my country's current total chemical fertilizer application. According to measurements, the average content of organic matter in straw is about 15%. If calculated by returning 15 tons of straw per hectare, the organic matter can be increased by 2250Kg / hm 2 . Simultaneously, the intensity of biological activity of the soil with straw returning to the field is improved, and the activity of c...

AI Technical Summary

Problems solved by technology

But what is the status quo? Around June every year, during the summer harvest and summer planting season when the wheat is ripe, the farmers who have just harvested the straw, in order to compete for time, season, and labor, no matter how harmful the straw burning is, they will burn the straw as much as possible. Burn it, but once the smog covers the earth, the air pollution is very serious. People in both rural and urban areas seem to be smoking "big smoke", which is also extremely harmful to traffic safety and harmful to people's health. Let alone patients with tracheitis, bronchitis, and emphysema, even healthy people can hardly accept this environment; it also has a great impact on the growth of crops, and crops that are harmed by smoke will not shrink. It takes more than ten days after the smoke dissipates for a period of time before new leaves grow slowly, but the seed setting rate is much lower, which is far from reaching the ideal purpose.

That being the case, why are farmers unwilling to return the straw to the field? Moreover, government departments at all levels have requirements, and expressly stipulate that straws are not allowed to be burned, and organize personnel to supervise and inspect them. However, the effect is very poor, and repeated prohibitions continue

The problem is that there are no practical measures and a suitable machine, that is, the straw cannot be inserted into the soil in a timely, convenient and effective manner without affecting the planting of the next stubble.

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