2, remove the frozen vegetable moss, see seedlings apply topdressing fertilizer. The frozen rapeseed must be taken clear and clear, and at the same time, the seedlings must be treated with the topdressing fertilizer: the bottom of the foot should be light and dry in winter, and it should not be frozen in spring. The strong, vigorous rapeseeds can be applied with little or no fertilizer, preventing Late rape due to overuse of nitrogen fertilizer late maturity. On the contrary, the application of base fertilizer is less, the winter is affected by drought, the plant growth is weak, and in spring, the rapeseed picking and picking is subject to freezing injury. It is necessary to seize the current favorable situation, reapply the moss fertilizer, generally apply 7-10 kilograms of urea per mu, and promote rapeseed Restore growth as soon as possible, multiple branches, increase production. 3. Spray boron on the leaves to prevent “flowering but not realizingâ€. Rape is more sensitive to boron deficiency, especially double-low quality rapeseed, which is more sensitive to boron deficiency. At present, the area of ​​high-quality rapeseed is large. In addition, the continued availability of drought this winter, the availability of boron in the soil has declined, and the rapeseed plants are generally deficient in boron. Therefore, special attention should be paid to applying boron fertilizer. Although there is more rain at the moment, it is the best time for spraying boron on the leaves of rapeseed. Farmers need to overcome difficulties and grab boron for rain and sunny weather. Generally, 0.1% of sulphur or 0.5% of borax is used for mu. 60 kilograms, sprayed 2-3 times evenly to prevent the rape from "flowering but not real". 4. Effectively control pests and weeds. In more years of rainy weather, it is necessary to strengthen prevention and treatment of Sclerotinia sclerotiorum. Generally combined with spraying boron during flowering period, 50% of fast muskolin (or sclerotium net) wettable powder 80--100g, or 25% of fresh butter oil 30--40g, or 2% of Bactobacillus mu. Aqueous agent 120 - 180 ml, 60 kg evenly sprayed. The spraying is applied once in the first flowering period and then once every 7-10 days. The liquid medicine should be sprayed on the lower part of the rape to increase the effect of the application.
(Triangular leaf Coptis) Ranunculaceae, Coptis. Rhizome yellow, internodes obvious, mostly densely rooted, with transverse stolons. Leaves 3-11; leaf blade ovate, slightly leathery; petiole glabrous. Scapes yellow-green, narrowly ovate, apical apex; petals nearly lanceolate, apex acuminate, Middle slightly widened, with honey groove; stamens long only about 1/2 of the petals; anthers yellow, filaments narrowly linear; style slightly curved. Oval oblong, carpels stalked puberulent. March-April flowering, April-June results. Specialty Chongqing pillars yellow water. Health elevation of 1600-2200 meters between the mountain forest, often cultivated, wild rare. Rhizome is a famous traditional Chinese medicine ("Coptis"), with berberine, Coptidis base, Coptis base, tetrandrine and other alkaloids, can cure acute conjunctivitis, acute bacillary dysentery, acute gastroenteritis, hematemesis, Embolism.
Plant Triangular Leaves Coptis Plant Triangular Leaves Coptis Chongqing Taisun Pharmaceutical Co., Ltd. , https://www.taisuncoptis.com
Low temperature and rainy rape in spring
1. Clean up "Three Ditches" to prevent waterlogging. Long-term drought will have long rain. Last winter drought lasted for a long time. The spring rain may last for a long time. Therefore, all localities must prepare for flood control. For rape fields that are susceptible to waterlogging, we must carefully clean up the Xianggou, Yaogou and Weigou in the spring so that the “three channels†can be matched and the gutters unimpeded. The water energy filter reduces the humidity in the field and promotes the growth of rapeseed roots.