Correct Methods and Technical Key Points for Returning Rice Straw to the Field

1. @#@245@#@ rice straw mulching in fields. After wheat sowing is completed, use 250-300 kg of rice straw per mu, cut into 10-20 cm straw segments, and spread evenly over the field so that the straw does not form piles and the soil is not left exposed.

2. Rice straw mulching in rapeseed fields. When transplanting rapeseed, plant the seedlings according to the specified spacing into holes with sufficient basal fertilizer, cover with soil, and then evenly spread rice straw over the whole field at 300 kg/mu, so that the straw does not cover the holes (seedlings) and the soil is not left exposed, while also applying integrated chemical weed control and necessary field management measures.

3. Drainage and irrigation. If there is abundant rain during wheat sowing and rapeseed transplanting, ditches inside and outside the field should be kept connected, with no standing water in the ditches after rain. If drought occurs after rice straw mulching, water once or apply clear manure water once, preferably at one ton per mu.

4. Balanced fertilization. According to soil fertility and crop yield targets, implement balanced fertilization combining organic and inorganic fertilizers with nitrogen, phosphorus, and potassium. To adjust the carbon-to-nitrogen ratio, promote microbial activity, and speed up straw decomposition, it is essential to apply an additional 5-10 kg of urea per mu.

5. Chemical weed control. A herbicide should be applied in the field 3-7 days before sowing wheat or transplanting rapeseed.