1. In the early morning, seedlings are thin and thin, leaving weak and strong. The China Agricultural Network recommends adjusting the distance between the plants to maintain uniformity. The seedlings are usually divided into two sub-seedlings. After the first seedling emergence, the second seedling emergence occurs in the second true leaf. In the third leaf stage, the seedlings are planted, and the seedling distance is generally kept 7 to 10 cm. A small amount of seedlings can be planted only once. 2. Early application, application of Miao Miao Fertilization First light after the thick, from less to more, with the principle of quick-acting nitrogen fertilizer. In dry areas and years, it should be combined with watering, with water to topdressing, and water to promote fat. In addition to topdressing nitrogen fertilizers for transplanting rapeseeds, wax fertilizer should also be topdressed for 1 time. For live rapeseed, fertilizer should be topdressed once during the first seedling and after seedling establishment. In addition to topdressing N fertilizers, it is also necessary to pay attention to topdressing phosphate fertilizers. Rape is sensitive to boron. Double-low rapeseed is particularly sensitive to boron. Pay attention to the application of boron fertilizer. Spray 667 square meters of 0.1% to 0.2% borax solution 100 kg. 3. Anti-drought drainage When the relative humidity of the soil (maximum water holding capacity in the field) is less than 70%, the lower leaves of the rape are red, the whole plant is dark green, or the noon leaves are wilting, and irrigation should be performed immediately. When the drought is light, it can be combined with straw seedlings and watered to resist drought. In autumn and rain more areas and years should pay attention to ditch drainage. 4. The principle of early loose soil and ground loose soil should be mastered in the cultivating and cultivating tillage of cultivating loose soil, and it should be coordinated with fertilization, fertilizing techniques of cultivating rapeseed roots in Duchang County and other measures. For live rapeseed, two or three true leaves appear after the whole seedlings, and the first cultivator is combined with the seedlings and the top dressing. When there are 4 to 5 true leaves, the second cultivator is combined with the fixed seedlings and the top dressing, and then at low temperatures. Cultivate again once before coming. For transplanting rapeseed, the first cultivator should be used in combination with topdressing after the seedlings are returned to green, and then cultivating one or two times before winter. When cultivating loose soil, it is necessary to pay attention to the roots of cultivated earth to enhance the cold resistance of rapeseed. 5. Chemically control rapeseed in a timely manner after the 3 leaf stage, 667 square meters with 15% paclobutrazol wettable powder 40 ~ 50 grams of water sprayed on 40 kg. Do not arbitrarily increase the amount of paclobutrazol, do not re-spray, do not leak spray. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Cervical Tractor,Tractor Cervical,Cervical Vertebra Tractor,Cervical Traction Tractor XIAMEN DORRELLA HEALTH TECHNOLOGY CO.,LTD , https://www.dinglimed.com