Cultivate strong seedlings
Varieties with high yield, low water content, soft quality, convenient processing and finishing, and strong disease resistance and cold resistance should be selected. Because of the strong regionality of mustard varieties, when introducing new varieties, large-scale planting must be carried out on the basis of small-scale trial planting. The sowing and seedling raising time is from the end of September to the beginning of 10. If broadcast too early, the virus will be very powerful; Broadcasting too late will affect the output. Treating seeds with 10% trisodium phosphate for 10min before sowing can inactivate the virus and reduce its harm. It can also be treated with mancozeb. Treat soil with 50% phoxim 1000 times solution to eliminate underground pests. After sowing, spray 60% butachlor 100ml or acetochlor 50-70ml before germination. Control aphids at seedling stage.
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Soil preparation and fertilization
After transplanting, sowing and harvesting, farming and soil preparation should be carried out in time. Apply 2000-2500 kg of decomposed organic fertilizer and 50 kg of compound fertilizer as base fertilizer per mu, and then plough it into ridges (continuous ditches) with a width of 1.5 m, with a turtle-shaped box surface. Sowing can be carried out in 30-35 days, and the plant spacing is 20-23×33 cm. Generally, 5000-6000 plants are planted per mu. After transplanting, pour enough rooting water.
Tiantuan management
After transplanting or returning to the field, field management should be carried out, with the first topdressing of 4-5 kg urea and water 1000 kg per mu. At the end of June 5438+ 10, the second topdressing was carried out with 25kg ammonium bicarbonate, 20kg calcium superphosphate and 5kg potassium chloride 1500kg water. In late February, 25 kg of urea and 0/2.5 kg of potassium chloride/kloc were applied per mu, and then water was added for fertilization. It is forbidden to popularize or only apply nitrogen fertilizer. After 7 days, according to the growth situation, re-fertilization can promote the growth of tumor stems and leaves, and reduce cavities. Spraying 100 ~ 125ml butachlor 60% emulsion and 50 ~ 60kg water, or spraying 50 ~ 75ml acetochlor and 50 ~ 60kg water on the border. Control aphids 1-2 times according to climatic conditions, and remove virus strains in time. If there is a long-term drought before winter, you can irrigate the ditch once according to the situation and drain it in time, so as not to cross the border. If there is too much rain, ditch drainage and flood control should be done in time.
Through our introduction, I believe everyone has a deeper understanding of the cultivation techniques of high-yield mustard tuber in rice fields, and how to cultivate mustard tuber will be constantly updated. Like we remember to collect and share.