Straw returning to land is an important measure to improve farmland ecological environment, develop sustainable agriculture and dry farming, and is an important part of cost-saving and efficiency-improving agriculture, and an effective means to promote the development of green food. Returning corn stalks to the field is to crush the corn stalks directly on the ground or deep into the ground. The return of corn stalks to the soil can increase soil organic matter content, improve the structure of soil aggregates, and enhance soil water and fertility conservation. It is an important measure to ensure stable and high yield in agriculture. The following points must be noted when corn stalks return to the field:
The straw should be chopped and chopped into a short section of 3 to 6 cm long, or crushed by mechanical comminution method to prevent the straw from overly long soil pressure and affect the emergence and growth of the crop.
After the corn stalks are returned to the field, the water content of the soil will be reduced due to water absorption and microbial decomposition of the straw itself. Therefore, timely watering is needed to make the chopped corn stalks in close contact with the soil to prevent it from being overhead.
Supplementary nitrogen application of soil microorganisms in the decomposition of crop straw, the need for a certain amount of nitrogen, will appear with the next crop of seedlings compete for nitrogen in the soil phenomenon. Therefore, the proportion of 100 kg of corn stalks plus 10 kg of ammonium bicarbonate should be used as a supplementary fertilizer so that nitrogen deficiency and yellowing at the seedling stage can be avoided.
The number of corn stalks suitable to apply 300-400 kg per mu is better, but more, it will hinder the growth of root crops in the next crop.
The depth of ploughing should be reasonable. When corn stalks are returned to the field, they should generally be buried in the soil below 10 cm and compacted. At the same time, we should also pay attention to Honda straw Honda, do not return Honda's straw to other fields.
Prevention of pests and diseases Spreading corn stalks When returning farmland, use well-grown stalks instead of returning corn stalks with pests and diseases to prevent pests and diseases from spreading and spreading.
Dongguan City Risen Medical Products Co., Ltd. , https://www.risenppe.com