How to plant garlic for soil preparation and fertilization

How to prepare the soil and fertilize the garlic? Please introduce in detail that garlic has strong adaptability to soil and can grow except saline-alkali and sandy wasteland. However, because its root group is small and short, and its ability to absorb nutrients is poor, the sandy soil rich in organic matter, good drainage and loose is the best. Garlic is afraid of alkali, does not like clay, alkaline cultivation, the mother valve is easy to rot and easily lead to the harm of garlic maggots, and the seedlings are yellow and weak, and the pseudostem loses when returning to alkali. According to the characteristics of garlic root growth, fine soil preparation, deep ploughing and fine harrowing, and smooth border surface are required, and mature organic fertilizers should be applied before autumn sowing, spring sowing and sowing. Spring sowing garlic should be combined with deep ploughing soil to apply high-quality compost 2000kg to 2500kg per mu as base fertilizer before winter. After deep turning, the width of the border is 1.2 to 1.5 meters, and the length of the border is evenly irrigated to make a high border and deep trench to facilitate smooth water. Pour enough water before freezing so that the seeds can be sown in early spring. Autumn sowing garlic should be ploughed and ploughed as soon as possible after the previous harvest, applied 2500-3000 kg of organic fertilizer such as barnyard manure per mu, and increased nitrogen, phosphorus and other quick-acting chemical fertilizers to meet the rooting and seedling growth of garlic. Insufficient nitrogen and phosphorus, weak rooting ability and poor seedling growth. Sowing of garlic (1) sowing time the sowing time of garlic is strictly limited by the season. The suitable date for sowing in the south is that the average daily temperature is about 20: 22 ℃, and it is suitable to grow 4-5 true leaves before overwintering. Spring sowing garlic in northern China mainly depends on the date of soil freezing and thawing. The average temperature of the day is mostly between 3 and 6 ℃, and sowing seeds are carried out. (2) the planting density of garlic leaves is upright, which is beneficial for sunlight to shine on the base of the leaf layer, so there is great potential for reasonable close planting to increase yield. For the purpose of harvesting garlic, the row spacing is 16 cm 20 cm or 24 cm 27 cm; the plant spacing is 10 cm 13 cm or 8 cm 10 cm; the sowing rate is 120 kg per mu. Sowing with larger cloves of garlic, the sowing rate per mu is 150kg to 180kg. Sow seeds with small cloves of garlic, only 50 to 80 kilograms. For the purpose of harvesting green garlic, sowing is relatively dense, row spacing 13 cm, plant spacing 4 cm 5 cm, sowing up to 250 centimeters 300 kg per mu. (3) when sowing deeply, insert the garlic cloves into the soil, and expose the tip slightly, not too deep or too shallow. Then cover about 3 cm of fine soil to keep it moist. Garlic is suitable for shallow planting. Otherwise, the emergence of seedlings is late, the seedlings are weak, and the bolting is late. The sowing methods of garlic can be divided into wet sowing and dry sowing. Wet sowing is mostly used in spring, while dry sowing in spring and autumn can be used. Garlic can also be sowed with mechanical strips to improve mechanical efficiency. After sowing, in order to keep the soil moist and prevent weeds from growing, the border can be covered with a layer of straw, wheat straw or other weeds. The grass covered after emergence does not need to be removed, but can be used as fertilizer after decay. Click to get more garlic planting techniques click to get more vegetable planting techniques