There are mainly three ways to return straw to the field: First, the straw is returned directly to the field. This method is the most labor-saving and labor-saving method. It is particularly suitable for areas with flat terrain, relatively concentrated farmland, and high-scale farming and mechanization; second, stacking and returning land, which is mainly suitable for the cold northeastern regions and the dry northwestern regions. However, this method is more labor-intensive and popular. Difficulty; The third is to return to the abdomen, is an effective combination of agriculture and animal husbandry, is conducive to the development of animal husbandry, straw returning to better results, suitable for hilly areas. The return of crop stalks to the fields is mainly based on the three modes of mechanical smashing, field-free mulching, and returning sorghum to field. The northern winter wheat-summer corn crops are mainly returned directly to the straw in two crops a year, including returning wheat to the field, corn crushing and returning the field, and returning the whole plant to the field. In the northern area of ​​spring maize, it is generally combined with conservation tillage, and sorghum and straw are used to cover the field. Straw returned to the field if improper measures will affect the sowing of crops, emergence of seedlings, pests and diseases increased, affecting the growth of crops, resulting in reduced yield, quality decline, seriously affecting farmers' income. Therefore, the return of straw to the field requires a scientific approach. Pay attention to the following aspects when you return to the field: Straw should be crushed. Straw comminuted into the field, fresh straw smashed into a short section of 3-6 cm long, or smashed by mechanical comminution method, so as to avoid excessive long straw soil pressure is not true, affect the emergence and growth of the lower yam crops. It is enough to return to the field. After the straw is returned to the field, the water content of the soil will be reduced because the straw itself absorbs water and the microorganisms decompose and absorb water. Therefore, it is necessary to timely watering so that the chopped straw is in close contact with the soil to prevent it from being overhead. Apply nitrogen fertilizer. Soil microorganisms need certain nitrogen when decomposing crop straws, and they will compete with the under-cropping seedlings for nitrogen in the soil. Therefore, the ratio of 10 kg of ammonium bicarbonate (or 4 kg of urea) per 100 kg (corn) of straw must be supplemented so that nitrogen deficiency and yellowing at the seedling stage can be avoided. Return field to amount. Returning corn stalks to 300-400 kilograms per mu is better, and more, it will impede the growth of root crops under the crop. Apply straw decomposition agent. When the straw is returned to the field, 15 kg of straw rot maturing agent is applied per mu to promote rapid decomposition of the straw. Plowing depth should be reasonable. When the straw is returned to the field, it should generally be buried in soil below 10 cm and compacted. Prevent pest transmission. When the straw is returned to the field, it is necessary to use well-developed straw to return to the field. Do not return the straw with pests and diseases to the field to prevent the spread of pests and diseases. Note that Honda straw also returns Honda and do not return Honda's straw to other fields. Various Colours PVC Coated Gloves Various Colours Pvc Coated Gloves,Cotton-Lined Pvc-Coated Gloves,Safety Chemical Resistant Gloves,Open Cuff Glove JINAN SHANDE SECURITY TECHNOLOGY CO., LTD , https://www.sdsxlb.com
Returning straw to soil can increase soil nutrients, increase soil organic matter content, improve soil physical, chemical, and biological properties, and enhance soil water conservation, fertilizer retention, water supply, and fertilizer supply capacity. It is an important area for improving farmland quality and ensuring high yield and stable yield of crops. Measures.