How many months are the seeds planted?

Single-headed garlic is generally planted in September in autumn or before mid-March in spring, the temperature of bulb expansion should be controlled at about 20-25 ℃, not too high, and the sunshine duration should not be less than 13 hours, so the planting of single-headed garlic should be in accordance with local conditions and choose a suitable sowing time.

I. seed selection and sowing

Before planting garlic, you must select varieties according to your own production purpose. if you mainly produce garlic, you should choose larger garlic head, fatter cloves, distinguish white garlic as a kind of garlic, and if you mainly produce garlic bolts, you should choose better garlic head. Garlic cloves are fatter paper garlic as a kind of garlic.

II. Soil preparation and fertilization

Garlic should not be planted in the continuous cropping land. Before planting, the soil should be deeply ploughed and loosened, and then organic fertilizer, phosphorus and potassium fertilizer should be applied according to a certain proportion. About 1500-2000 kg of rotten farm manure can be applied per mu, with 15-20 kg of potash fertilizer and 30-50 kg of phosphate fertilizer.

Third, sow seeds at the right time

The main results are as follows: 1. The suitable temperature for garlic bulb expansion should be about 20-25 ℃. If the temperature is higher than 26 ℃, garlic will enter the dormancy period. During the growth of garlic, the sunshine hours need at least 13 hours, and the sunshine time is too short, which will cause the new leaves to fail to form lateral buds on the phosphorus plate, so it is necessary to choose a suitable sowing time to sow seeds according to local conditions.

2. In general, garlic should be sowed from the Autumn Equinox to Cold Dew, that is, September, about 20-30 days later than normal garlic, and the soil begins to freeze in spring, and the seeds should be sown before the middle of March, and then sow the land as a flat bed, or sow in the border.

IV. Reasonable close planting

Garlic colonization can be reasonably close planted according to the overall and individual growth of garlic, white garlic can be planted according to row spacing 16cm, plant spacing is about 10cm, the total yield is more than 25% higher than the control, garlic head is larger, garlic cloves are more fat, while red garlic can be planted according to row spacing 10cm and plant spacing 8cm.

V. late-stage management

1. The management of each growth cycle of garlic should be strengthened, especially in the period of phosphorus bud expansion, water and fertilizer should be increased in time, about 10-15 kg of urea can be applied per mu, and in order to make the soil not dry, it should be watered every 3-5 days. in addition, phosphorus and potassium fertilizer should be applied properly, 600 times potassium dihydrogen phosphate foliar spraying can be selected.

For garlic sown in autumn, the management after autumn should be strengthened. Before overwintering, heat preservation should be strengthened and a layer of firewood and grass should be covered. When the temperature rises in spring, the mulch can be removed and properly watered. It should be ploughed regularly until the middle of March, which is helpful to improve the ground temperature, preserve soil moisture, control maggots, and spray 1000 times dimethoate.