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Two fill
1. Supplement Water The moisture content of the soil is good, and sufficient water is an important condition to ensure that the microorganisms break down the straw. The plot of orange stalks is returned to the field. In particular, there is a shortage of groundwater, and unwatered plots should be watered early to create a suitable environmental condition for microbial activity to facilitate straw decomposing.
2. Supplementary Nutrients The carbon-nitrogen ratio of common straw crops is approximately 80-100:1, whereas the ratio of carbon-nitrogen required for soil microbial decomposition of organic matter is 25-30:1. If no nitrogen fertilizer is added, the decomposition of straw by microorganisms is inevitable. It competes with crops for nitrogen and moisture in the soil, affecting normal crop growth. Therefore, in addition to applying nutrients while returning cropland to the field, straw should be supplemented with ammonium bicarbonate in early spring when the soil is returned to the soil. If a certain amount of phosphate fertilizer is applied, the effect will be better.
Straw returned to the field "one defense against two supplements"
A prevention and control of pests and diseases. Since the crop stalk brought pathogens can easily spread through the soil (such as corn, leaf blight, smut, wheat scab, etc.). Therefore, during the growth of crops, we must also pay attention to the prevention of pests and diseases to ensure the quality and yield of crops.