How to grow garlic yellow

Select some high-yield garlic, soak it in gibberellin solution for three or four hours, then put it neatly on the culture bed, cover with 3-4cm fine sand, and then pour a small amount of water to let it germinate. After the garlic sprouts are unearthed, cover the culture bed with curtains to block the light, and water them every three or four days. When the room temperature is controlled at 25-28 degrees, the garlic will grow yellow.

Field management of garlic yellow

1. Cover the curtain and shade

When most of the garlic buds are unearthed, cover the cultivation bed with Reed curtains or grass curtains, or cover with black plastic film to soften the garlic leaves and ensure the quality of garlic yellow. If the cover curtain is too late or not tightly covered, the garlic seedlings will turn green and reduce the quality, and the cover curtain can also protect the temperature and humidity of the cultivation bed.

2. Temperature management

From sowing to unearthing, the planting bed temperature should be increased as much as possible by covering the protected field. The temperature should be kept at 25: 28 ℃ during the day, and the night temperature should not be lower than 18: 20 ℃. It would be better if the night temperature was slightly higher than the day temperature. After emergence to the height of 10 cm, in order to make the seedling sturdy, the temperature can be reduced to 20: 25 ℃ in daytime and 16: 18 ℃ at night. When the height of the seedling is 20cm to 25cm, the ventilation rate should be increased. The garlic seedlings were maintained at 18: 20 ℃ during the day and 14: 16 ℃ at night to promote the sturdiness, high yield and quality of garlic seedlings.

3. Water management

The first water in garlic yellow cultivation should be sufficient, and garlic cloves must be submerged. From then on, water should be watered every 2-4 days to keep the cultivation bed moist. Water management should be determined according to the temperature in the protected area and the seedling period. When the temperature is high, the evaporation is large, the seedling is large, the amount of water should be large, and vice versa, it should be watered 2-3 days before harvest to keep the garlic seedlings delicate.

4. Ventilation management

Garlic yellow cultivation bed sometimes accumulates a large amount of carbon dioxide or carbon monoxide and other harmful gases are released when the protected ground is heated. It should be ventilated and ventilated when the temperature is high at noon. In order to keep warm, there is generally no need for excessive ventilation. 4-5 days before harvest, ventilation should be increased as much as possible, keeping 10: 15 ℃ during the day and 10: 15 ℃ at night to prevent seedlings from growing and lodging.

5. Timely harvest

Garlic yellow can be harvested when it is about 25 to 30 centimeters high. the knife should be quick when harvesting, and the knife should not be too deep. It is appropriate to cut off the garlic cloves on the ground, not to cut the cloves. Do not water immediately after cutting, prevent the knife edge from being infected for 3 or 4 days, and promote the growth of the second crop. The second knife can be received after about 20 days, and the third main knife can be pulled out. The first knife can produce 0.7-0.8 kg of garlic yellow per kilogram of garlic, and the second knife is about 0.4-0.5 kg. After harvest, the garlic should be tied up in bundles and put in the sun to change the garlic leaves from yellow to golden, which is called "tanning". Do not bask in the sun for too long, and pay attention to anti-freezing.

The above is the introduction of how to grow garlic yellow. I hope it will be helpful to you.