The weather changes greatly in spring. How to manage planting red garlic in spring?

Garlic planting in northern spring is mostly carried out in March and April, and the climate is suitable, which can promote seedling emergence quickly. Choose sour seeds that are full, intact in appearance and free from pests and diseases, and remove the old skins and stems on the surface. Then deal with the plot, turn it deep and apply base fertilizer. Moreover, if garlic is planted too deeply, it will be difficult for garlic to expand after being squeezed by soil. Therefore, when planting garlic, the depth of 3 or 4 cm is the most suitable. Of course, shallow planting is not good, garlic root system is underdeveloped, and it is not easy to overwinter.

Garlic also entered the green period with the increase of temperature. According to the measurement, when the temperature exceeds 7 degrees, garlic begins to grow in the green period. For the plots with sufficient base fertilizer, there is no need for underground topdressing during this period, and any chemical fertilizer only needs a period of time after turning green. When the temperature is really stable, it is basically before and after the shock. When the temperature stabilizes and garlic seedlings turn green, the demand for water and fertilizer for garlic seedlings will gradually increase, and the supply of water and fertilizer should be kept up in time.

Garlic crops need a lot of fertilizer. According to the research data, it is concluded that garlic needs to absorb10.42 kg of nitrogen, 0.44 kg of phosphorus and 0.99 kg of potassium per 100 kg, and the demand for nitrogen is the largest, followed by phosphorus. Therefore, we should pay more attention to this aspect in fertilization. During this period, the temperature is generally above 13 degrees, and the ground temperature will ensure the garlic to grow sturdily. In addition, it is the most important stage of fertilization after bolting, so special attention should be paid to it. In addition, some foliar fertilizers can be sprayed in time or fertilized by field irrigation.

When the daily average temperature reaches 7℃, about 20kg of diammonium phosphate or 25kg of ternary compound fertilizer should be applied per mu, and the second topdressing can be carried out after April, and the third topdressing can be carried out when the young garlic shoots enter the vigorous period in early May, and about 20kg of ternary compound fertilizer can be applied per mu, and base fertilizer should be applied before planting to ensure sufficient base fertilizer. The base fertilizer is preferably organic fertilizer, half of which is evenly spread on the soil surface before ploughing, and the other half is evenly mixed with the soil before sowing. Topdressing should be carried out at jointing stage to ensure the normal growth of garlic.