Soilless cultivation techniques of garlic yellow

Select some early and medium-ripe high-yield and high-quality garlic varieties, generally about 10 cloves of white garlic and red garlic can be used as garlic varieties. Then soak in gibberellin solution for three or four hours, put it neatly in the nursery box, finally cover a layer of grass curtain, keep the indoor temperature 25-27 degrees, and water two or three times a day to grow garlic yellow. During the cultivation period, it should be ventilated frequently, and the temperature should be controlled at 18-22 degrees after emergence.

Cultivation and management techniques of garlic yellow:

1. Prevent lodging

It is necessary to lay a large eye net 30cm away from the bottom of the pool and fix it around the pool to ensure the upright growth of garlic yellow. At the same time, the heat preservation of garlic is very important. 4'6 bamboo poles can be placed equidistant below the steel wire on the pool, and the black plastic sheet can be spread flat on the steel wire and fixed around it. Spread a layer of grass on the plastic sheet to keep warm and shade. In order to ensure that the grass is not drenched by rain and snow, spread a layer of plastic sheet on top of the grass, fixed around it, and press it with heavy objects to prevent it from being blown off by the wind. In this way, the temperature in the garlic pond is guaranteed, which lays a foundation for the normal growth of garlic yellow.

2. Timely watering

Watering should grasp the principle that the amount of water should be small in the early stage and large in the later stage. The reason is that in the early stage, the garlic root grows slowly, the watering is too large, the garlic will float, and some will be squeezed into a pile, resulting in rotten garlic due to lack of oxygen, and in the middle and later period, the garlic root will grow densely, like a blanket, and the garlic yellow will grow more and need more water and heat at this time, so the watering times are slightly more and the amount of water is slightly larger than that in the early stage. Generally, the first 10 days, watering 1 to 2 times a day, every 20 square meters of cultivation bed watering no more than 5 minutes, the amount of water not more than 0.5 cubic meters. After 10 days, each watering can reach 7-8 minutes, the amount of water is about 0.7 cubic meters, and the watering can reach 2-3 times a day. According to the market price of garlic yellow, the market time can be artificially controlled by the number of times of watering. Early listing, garlic yellow can be watered 1 or 2 times a day in the middle and later stage of growth, delayed listing, and can be watered less once a day.

3. Regulate the temperature and humidity

In order to promote the early germination of garlic buds, the temperature should be increased at the initial stage of planting garlic, and the average daily temperature should be controlled at 25-27 ℃. After germination, with the growth of garlic yellow, the room temperature gradually decreased to 18: 22 ℃. The temperature decreased 5-6 days before harvest, 18-20 ℃ in daytime and 13-15 ℃ at night. When the temperature is too high, garlic yellow grows fast, and the plant is thin and weak and easy to lodge, thus reducing its yield and quality. Temperature regulation is mainly realized by ventilation and uncovering of grass grass. After planting garlic, the indoor air humidity was maintained at 85.90%. In the middle and later stage of growth, the leaves of garlic grow densely, which should remove moisture and prevent plant erosion. In order to reduce the loss of water and wilting of the product before harvest, the indoor humidity should be maintained at 75% 80%.

4. Timely harvest

Generally, after 20 to 25 days, the garlic yellow can be harvested when it grows to 35 to 45 centimeters. When harvesting, the sickle is cut against the top of the garlic cloves. After harvest, the excess cloves of the garlic yellow roots are removed with a small iron rake and tied with plastic strips to make the bottom neat and the upper upright golden. The wrapped garlic yellow can be washed with clean water to cool down, because the garlic yellow grows in a higher temperature and is easy to rot when it is put outdoors after harvest. After the garlic is washed, it should be covered with plastic sheeting to avoid bright light. After harvest, the cultivation bed should be watered once, and the yield can be increased by spraying 0.1% potassium dihydrogen phosphate or 0.2% 0.3% urea solution every 7 days. The garlic can be harvested again at an interval of 15 to 20 days. generally, after 2 crops of cultivated garlic, the garlic residue in the pond can be cleaned and disinfected and sowed for the second time.

The above is the introduction of garlic yellow soilless cultivation technology, I hope it will be helpful to everyone.