Rape planting field management
1. Timely cultivating weeding and early topdressing
The cultivating and weeding can prevent the soil compaction and the preservation of the soil, eliminate the competition between the weeds and the rapeseed in the field, and destroy the resistance between the soil microorganisms and the rhizosphere microorganisms of the rapeseed. In general, Honda cultivated alfalfa 3-4 times. In the principle of “shallow-deep-shallow†and unpredictable before the rain, it should be early and diligent, and often check and remove the grass. When topdressing, it should be done early to promote early growth. The growth of rapeseed seedlings requires less fertilizer. After the buds, the fertilizer needs to be large, and the fertilizer release is slow and long-lasting. The re-application of the base fertilizer and early application of topdressing can meet the rape. At the same time, the demand for fertilizer in the reproductive growth stage; at the same time, it is necessary to combine the flakes to apply 6,000 times of Sdeco, to supplement the six trace elements, and promote the absorption of nitrogen, phosphorus and potassium, which is conducive to the formation of buds. In the autumn 5-8 pieces of true leaves during the cultivating and weeding, the pot is applied with 12.5 kg of potash fertilizer, 5 kg of phosphate fertilizer and 7.5 kg of urea to promote autumn hair. Before the start of the spring, the rapeseed buds will be opened before the closure of the line, and then the use of potash 12.5 kg, phosphate fertilizer 5 kg, urea 7.5 kg rhizosphere topdressing to promote spring hair. After fertilization, the soil around the roots can be concentrated in a timely manner, and the fertilizer can be concentrated and sustained at the same time. If you can ensure that the rapeseed will be in both autumn and spring, you will be able to obtain high yields in the later period.
2, pest control and chemical control
In the seedling stage, the prevention and control of pests such as cabbage caterpillars, aphids, tigers and cockroaches should be strengthened. It can be effectively prevented by using Alfat 1000-1200 times. Another major disease in the seedling stage is downy mildew. It can effectively prevent downy mildew by spraying the ditch drain or spraying 1500 times of soft water every 1000 days + 1000 times of Nile or 1200 times of Maha. Ma He has a significant effect on the treatment of downy mildew. Mahe is a new unique formula of suspending agent introduced by Singapore's Li Nong, which has good effects in preventing and curing diseases and downy mildew. The flowering period is mainly to prevent and cure sclerotinia and prevent it from growing. In the first week after the initial flowering period, the acre is 1500 times with soft water, 6000 times for Sdeco, or 1000 times for Philippine + pigeons. The green pod period mainly strengthens the prevention and control of aphids and white rust. The control of aphids should be sprayed 1000-800 times with a high-pressure sprayer over a large area. The control of rust can be 1200 times nano-hin every 7-10 days.
3, timely harvest
When the grain in the middle corner of the plant begins to turn yellow and brown, it can be harvested. Harvest should be chosen on a sunny morning to avoid loss of pods. When harvesting, the fruit branches should be cut longer, then the small bundles are sun-dried to promote ripening. Fine and fine, the particles returned to the warehouse.
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