On Dosage, Dosage and Proportioning of Balanced Fertilizer in. Under the premise of full use of organic fertilizers, nitrogen, phosphorus, and potassium fertilizers are applied according to soil fertility levels and yield targets, mainly to control the amount of nitrogen fertilizer and increase phosphorus and potassium fertilizers. Take the proposal of the management of rapeseed nutrient in Hubei Province as an example. The recommended amounts of nitrogen, phosphorus and potash fertilizers are as follows: the yield level is more than 200 kg/mu. It is recommended to apply nitrogen fertilizer (pure N) 11 to 13 kg/mu and phosphate fertilizer (pure P2O5) 4 to 6 Kilograms/Mu, potash (pure K2O) 7-9 kg/mu, borax 1.0 kg/mu; yield level 100-200 kg/mu, nitrogen (N) 8-10 kg/mu, phosphate (P2O5) 3-5 kg / Acre, potassium fertilizer (K2O) 5-7 kg/mu, borax 0.75 kg/mu. During the fertilization period, due to the long growth period of rapeseed, the application of nitrogen fertilizer and potash fertilizer can increase the utilization rate. For this reason, the frequency of fertilization should be appropriately increased. In addition to basal fertilization, overwintering fertilizer, buddy manure and flower fertilization should be applied. For direct seeding and interplanted oilseed rape, it is necessary to increase seedling fertilizer once in winter. The fractional application of nitrogen and potassium fertilizers should appropriately reduce the amount of basal fertilizer and increase the application rate during the growth period. Specific fertilization period: For transplanting rapeseed: 60% of total nitrogen and potassium fertilizers were used as base fertilizer, 20% for wax fertilizer (50 days after transplanting), and 20% for manure (80 days after transplanting). For the live rapeseed: 40% of the total amount of nitrogen fertilizer is used as base fertilizer, 30% for drawing fertilizer (about 25-30 days after sowing), 15% for wax fertilizer (about 80 days after sowing), 15% for alfalfa ( About 110 days after sowing); 60% of the total amount of potassium fertilizer is used as base fertilizer, 30% for wax fertilizer (about 80 days after sowing), 10% for alfalfa fertilizer (about 110 days after sowing), and the remaining fertilizer is used as base fertilizer. There is an important issue in current production. Basal fertilizers must be deepened to promote the growth of rapeseed roots. Taking live rapeseed as an example, it has obvious main roots. Lateral roots are distributed along the main root at various levels in the soil, and lateral roots are not well developed. If the fertilizer is applied only on the surface of the soil, it will lead the root system (including the main root) of rapeseed to grow longer than the surface of the soil without deep-rooting, forming a “floating rootâ€, which causes the roots of rape to be unstable, and the ability to absorb soil water and fertilizers is reduced, and tends to fall and shoot off. Fertilizer, drought and other phenomena. However, during the growing season of winter rape, it is often encountered various natural disasters or unfavorable factors such as spring rain and windy wind during the flowering of rapeseeds each year, and the rainy weather that may be encountered during the mature period is a limiting factor for the production of rapeseed in the country. In short, balanced fertilization is beneficial to the safety, high yield, and quality of winter rapeseed.  Sterile Surgical Gown Sterile Surgical Gown,Blue Disposable Overalls,Isolation Gown Suit,Disposable Isolation Gown Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.haloxylonmedical.com
Balanced fertilization is conducive to safe wintering of rapeseed
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