Rice field rapeseed direct seeding due to drought, lack of fertilizer and other causes of early moss, early buds, early flowers, this will seriously affect the yield and quality. Once the early moss phenomenon occurs, you can take the following measures to remedy:
1, in addition to budding moss. When the moss height is 4-5 inches, the 1-2 inch growth site of the bud is removed, and when the bud is removed, it should be dried after the sunny dew. After the application of the moss, 50% of the carbendazim 3-4 two pairs of water 50- 60 kg, spray on the surface of the plant to prevent infection.
2, topdressing quick-acting fertilizer. After picking moss, topdressing can be combined with the total amount of fertilizer to be regulated. The average field of moderate fertility and seedling potential is 300-400 kilograms of manure and 300 kilograms of compound fertilizer, and 10 kilograms of compound fertilizer is applied to clear water. The base fertilizer is high in fertility, and the fertility is high. . Simultaneously spraying foliar fertilizer, after picking the moss, 3-4 grams of potassium dihydrogen phosphate, 0.5 kg of urea and 50-60 kg of water were sprayed on the foliar, or sprayed with plant nutrient solution.
3, cultivator soil. The cultivating cultivation can loosen the soil layer, remove part of the old roots, suppress the growth of the shoots for a short time, and promote the rapid growth of new roots; enhance the permeability of the soil, facilitate the deep roots and strengthen the capacity of drought resistance. In order to keep the vegetative growth of the plant larger than reproductive growth, the speed of bolting is slowed down.
4. Spray plant growth regulators. For the base fertilizer, nitrogen fertilizer is more, and the seedling growth is prosperous. The plant growth regulator can be used for chemical control. In general, 15% paclobutrazol 1 2 pairs of water 50 kg sprayed on the foliage. Do not repeat spraying to prevent the concentration of large impact spring.
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