The application of organic fertilizers on roots and stem vegetables is low, organic fertilizers are applied excessively and nitrogenous fertilizers are neglected, and potassium fertilizers are neglected. Prominent problems are persisted. Organic fertilizers are mainly used, and phosphate fertilizers and potassium fertilizers are the main fertilizers. Nitrogen and phosphorus are the main fertilizers. The three elements of potassium and potassium were used in conjunction with the application, with particular attention to the addition of potash fertilizer in the middle and later stages. Fertilization was repeated several times in accordance with the principle of “one mention, two promotions, three guarantees, and four taboosâ€. One control is to control the fertilization during flowering to avoid falling, defoliating and fruit dropping. The second is to timely apply fertilizer during the young fruit and harvesting period to promote the rapid expansion of young fruit. The three guarantees are to maintain water and fertilizer, not to be prolonged, and not to be harmed by fertilizers; 4 bogey is to avoid using high concentrations of fertilizer, avoid wet soil top dressing, avoid high-temperature dressing and avoid too concentrated fertilizer. Methods as below: 1, base fertilizer; generally before transplanting high quality soil miscellaneous fertilizer or pig, cow dung 300 kg, while 100% of the phosphate fertilizer and 30% of nitrogen and potassium used as base fertilizer deep application. 2. Top dressing in seedling stage: The application amount is generally 50% of the total amount of nitrogen and potassium. During this period, topdressing should be performed in stages and fertilizer should be chased every 10 days or so to promote the growth of stems and leaves and enlarge the assimilation area. 3. Use of fertilizer: The application amount is generally 30% of the total amount of nitrogen fertilizer and potash fertilizer, promote tuber enlargement and increase yield. 4, melon, eggplant, fruit, beans in the middle and late stages of growth, spraying 0.2% potassium dihydrogen phosphate solution 2-3 times, has a good effect. Infectious Bursal Disease Vaccine Strain Ibd Disease In Poultry,Chicken Ibd Vaccine,Animal Vaccine For Ibd,Ibd Live Vaccine For Poultry Shangqiu Meilan Biological Engineering Co.,Ltd , https://www.melanvaccine.com