Daejeon transplanting rapeseed, if the long seedling period is too long, it will seriously affect the early occurrence of rapeseed and reduce the yield of rapeseed. Therefore, in the production of rapeseed, the following measures should be taken to reduce the period of seedlings. Fine soil preparation Fertilizer Rape requires loose soil. Poor soil preparation, poor wet cultivation, and soil compaction not only slow seedlings but also cause rot. After harvesting the previous crop, it is necessary to grab sunny soil preparation and loosen the soil. The previous crop is rice. It is required to open the field before the rice is harvested. Open the ditch immediately after ploughing to ensure that the irrigation and drainage are smooth and the field is dry. At the same time, it is required to combine the land preparation with sufficient base fertilizer. Per mu soil mixed fertilizer 2000 ~ 2500 kg, calcium magnesium phosphate fertilizer or three yuan compound fertilizer 25 kg, rapeseed cake 40 kg, ammonium bicarbonate 15 ~ 20 kg, borax 0.75 kg, fully mix and stack after the application. Transplanting with fertilizers on the basis of cultivating strong seedlings, with fertilizer, with medicine, transplanting with soil, is the key measure to shorten the seedling period. After transplanting for 3 days, 500 kg of composted urine was applied per acre seedbed. 1 to 2 days prior to transplanting, apply once to prevent pests from getting down. To facilitate seedlings, the seedbed is drenched 1 day before transplanting. After dehydration on the day of transplanting, the seedlings were taken out with a spatula, the vegetables and soil were more soiled, the roots and leaves were lightly damaged, and they survived quickly. The seedlings are planted with the plants and they are not planted overnight. Properly transplanted early rapeseed transplanting, higher temperatures, is conducive to the growth of seedlings survived. High-yield canola requires 9-10 green leaves before winter and must be planted in due time. To improve the quality of transplanting rapeseed transplants to achieve "full", "uniform", "straight", "蘸". "Full," that is, the seedlings are less injured and the leaves are intact. "Equal", evenly transplanted according to the spacing of plants, the size of seedlings transplanted. "Straight," the seedlings are straight and straight. "蘸", with "9,020" 1 grams, 2.5 ~ 3 kg of superphosphate, add 100 kg of water dissolved and then add appropriate amount of pond mud or fertilizer soil into a paste-like edge root transplanting. Pour enough water after planting. After planting rapeseed transplants in a plant, timely weeding and weeding were used to remove topsoil. 7 to 10 days after transplanting, combined with watering per acre applied to manure urea 5 kg raised. After planting drought, timely watering drought protection seedlings.
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