How to manage the most scientific rapeseed during the winter:
1, apply winter fertilizer. Before the arrival of the cold, chasing the fertilizer and increasing the application of phosphorus and potassium fertilizer can enhance the cold resistance of rapeseed on the one hand, and provide nutrition during the wintering and twitching period on the other hand to ensure balanced growth in the later period. Apply 1200-1500 kg of soil-fertilized fertilizer per acre, and then cooperate with the application of ternary compound fertilizer 10-12 kg. It can spray the tree generals, which can significantly improve the cold resistance of rapeseed.
2, covering anti-freeze damage. Before the onset of freezing damage, cover a layer of thatch, straw, etc. between the rapeseed rows or deepen the soil and cover the soil with the fertilization between the rapeseed rows, the large seedlings and bacon, the strong seedlings and the heart, the small seedlings to cover the roots, and the thickening of the root layer. It has a certain effect on blocking the invasion of cold wind and improving the ability of heat absorption and cold resistance.
3, timely pest control. In autumn and winter, rapeseed fields are prone to aphids, cabbage caterpillars, rapeseed meal, and jumping armor. They can be treated with high-efficiency insecticides and 500 times solution of new high-fat film.
4, clearing the ditch against waterlogging. Every time the cultivating is clear, the three ditches, especially the rice bran rape fields, have a large humidity, and the three ditches are cleaned up to ensure that the ditch and the canal are connected and the drainage is smooth. It is necessary to pay attention to clearing the accumulated water in the field after the rain and snow have passed.
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