Technical Points for Returning Corn Straw
The corn stalk crusher will crush the upright corn stalks to the field to increase soil organic matter, improve the soil aggregate structure, fertilize the soil, enhance the soil water retention and fertility, and reduce the labor intensity, which saves manpower and improves work efficiency. It also reduces operating costs. Straw returning benefits The nitrogen content of corn stalk is 0.6%, the phosphorus content is 0.27%, the potassium content is 2.28%, and the organic matter content can reach about 15%. 1250 kg of fresh corn stalk is equivalent to organic matter content of 4,000 kg of soil miscellaneous fertilizer. The content of NPK is equivalent to 18.75 kg of ammonium bicarbonate, 10 kg of superphosphate and 7.65 kg of potassium sulfate. The implementation of corn mechanical straw returning for 2-3 consecutive years can increase soil organic matter content by 0.15-0.2%, increase available phosphorus 33-45%, rapidly increase potassium content by 25-30%, increase nitrogen content by 1.06%, and generally increase yield per unit of 20- 30%, thus reducing the amount of fertilizer used, reducing agricultural non-point source pollution and soil pollution, and improving the quality of agricultural products. Straw returning technology Picking: When the maize is fully ripe, pick the panicles in time and take them off together with the loquat leaves. After avoiding cutting down the straw and picking the panicle, the straw will not turn yellow and dry in the field, resulting in poor crushing effect and not easy to rot. Crushing: After the picking of the ear, the crushing operation is performed in time, and the tractor's working speed and stubble height are adjusted during the operation, and it is necessary to prevent leakage and blade hitting. The application of nitrogen fertilizer: When the soil microorganisms decompose the crop straw, it needs a certain amount of nitrogen, and it is easy to compete with the crop seedlings for the available nitrogen in the soil. Therefore, it is necessary to add nitrogen fertilizer at a rate of 10 kg of ammonium bicarbonate per 100 kg of straw to accelerate straw rot. Rotary tillage or tiller: After the straw is crushed, be sure to use a heavy-duty disc harrow twice to further chop the straw and root pods. After the rake is hauled in, it should be deep-turned and covered in a timely manner to protect the smashed soil and make the straw and fertilizer. The soil is mixed and distributed in 3-10 cm of soil. It is necessary to make sure that it is not leaked or covered so that it will not be lost or lost. After ploughing, it should be flattened to facilitate sowing. Returning soil to the field: After the straw is returned to the field, the water content of the soil will be reduced due to water absorption by the straw itself and decomposition by the microorganisms. Therefore, timely watering is required to accelerate the sinking of the soil and promote close contact between the straw and the soil to prevent overhead. The quantity of returning field should be suitable: The amount of returning straw should be determined according to the water source and farming conditions. In principle, it should be ensured that the returning field straw is fully rotted and does not affect the tillage tillage. It is advisable to use 300-400 kg per mu of returning straw. Most will harm the growth of the root system of glutinous wheat. Prevention of pest and disease transmission: When straw is returned to the field, it is necessary to use well-grown straw, and do not return fields with pests and diseases to control the number of insect pests in the following year and the primary source of the disease. 100U Botox,Botox Poison,Nabota Botox,Botulinum Injection Qingdao Beautiful Skin Biotechnology Co., Ltd , https://www.hafilleresthetic.com