In the early winter of last year, the Bureau continuously received reports from garlic farmers that the yellow tips of garlic were serious. In response to this problem, the author went to the field to investigate and learned the reasons for the sharp tip of the yellow leaves of garlic: First, it was planted repeatedly each year; second, it was sown early and the temperature was high; thirdly, it was a garlic pest; and fourth, the soil was deficient in nitrogen and potassium; It is the lack of supply of nutrients in the mother's back period. The yellow tip of garlic yellow leaves affects the yield and quality of garlic pods and garlic heads, and the yellow tip of garlic leaves must be picked from the seeds. Rotation of garlic for long-term replanting, garlic pests and pathogens in the soil to accumulate for years, the base increased, the occurrence of pests and diseases; unbalanced consumption of soil nutrients, plant growth is weak, resistance to decline, yellow leaves, garlic is small. Reasonable crop rotation can destroy the living environment of pests and pathogens that harm the garlic, reduce the accumulation of pests and bacteria, and coordinate soil nutrients. In order to avoid the use of onions, leeks, and onions in the crop rotation, the onion and garlic crops not only have common diseases and pests, but also have similarities in nutrient requirements. To make rotations with crops such as melons, beans, solanes, corn, potatoes, etc., the mouthwash is arranged for rotation for 3 years. In areas where garlic is difficult to cultivate, 25-30 cm deep plowing can be performed to increase the amount of decomposed organic manure, in order to improve the soil, promote the robustness of garlic plants, and enhance the resistance to stress, so as to reduce the harm caused by double pounding. Preferably, the nutrients from the germination period of garlic to the seedling stage before winter are mainly derived from the mother's valve. Therefore, when the species flap is selected, it is necessary to select the large flaps of garlic with color, whiteness, no wounds, no spots and more than 5 grams. In addition, there must be a plan to introduce an excellent variety of virus-free garlic. Appropriate sowing garlic like cool, the suitable temperature for seedling growth is 12 °C -16 °C. In recent years, the global warming, especially before the winter temperature is high, garlic is still sown according to the original sowing date, the seedlings before winter are too large, the nutrient consumption is more, the yellow tip is sharp, the cold resistance is reduced, and it is vulnerable to freezing damage. Premature aging. Therefore, the sowing date of garlic must be postponed. The sowing date of each region can be determined according to the local daily average temperature. When the temperature is between 20°C and 22°C, sowing will be carried out. The garlic covered with garlic will be sown for 7-10 days. The scientific formula fertilization garlic root distribution in the soil is shallow, the absorption capacity is weak, and the soil fertility requirements are high. Therefore, in the fertilization should be mainly farmyard manure, supplemented by chemical fertilizers, applied multiple times, nitrogen, phosphorus and potassium. Prior to sowing, combined with 5000 kg of farmyard manure, 50 kg of superphosphate, 30 kg of potassium sulfate, 20 kg of urea, or 15% compounded with nitrogen, phosphorus, and potassium on the basis of farmyard manure. Fertilizer 50 kg, potassium sulfate 15 kg. Anti-garlic and garlic pests are rot-feeding pests, and their onion fly moths have strong odor (rot) properties. Therefore, the applied farm manure must be fully decomposed and deeply applied so as not to attract adult oviposites. Bedside Commode,Toilet Chair,Adult Potty Chairs,Steel Frame Commode Chair Active Life Healthcare Co.,Ltd , https://www.alh-med.com