How to cultivate garlic with double film mulching, and the cultivation techniques of garlic with double film mulching.

With the development of science and technology, people have been making corresponding changes in agricultural production technology. In the production process, we explored the cultivation technology of garlic covered with double-layer plastic film, which realized the early listing of garlic, higher yield and more than 10% increase in yield per mu. So how to cultivate garlic with double-layer plastic film? The cultivation techniques of garlic covered with double film are introduced in detail below.

Cultivation techniques of garlic covered with double film

First, choose good varieties.

Guanxian garlic, an excellent garlic variety, is also an important export variety. Each garlic has 7-8 petals, slightly purple skin, thin skin, large garlic petals, strong spicy taste and good quality, belonging to a strong species.

Strong growth, strong cold tolerance, high bolting rate and storage resistance, suitable for autumn planting.

Second, timely sowing.

Garlic must be sown at the right time and prematurely, which has a low emergence rate and is prone to garlic; Too late, the growth period before winter is short, the seedlings are too small, and they are vulnerable to freezing injury, which affects the yield and quality of garlic.

In order to ensure that the number of leaves of garlic plants reaches 4-5 before overwintering, the suitable sowing date in the central part of our province is generally from late September to early October of 10.

Third, soil preparation and fertilization

Garlic has a wide adaptability to soil, such as sandy soil, loam soil and night tide, but the slightly acidic sandy soil with rich organic matter, deep soil layer and good drainage is the best.

Garlic planted in this soil has developed root system, early turning green, early bolting, large garlic head, strong spicy taste and easy picking.

Careful soil preparation and application of organic fertilizer are of great significance to improve the yield and quality of garlic.

Precise soil preparation: The plot planted with garlic needs deep ploughing and harrowing, which increases the permeability of soil, is beneficial to the activity of soil microorganisms and the transformation of soil nutrients, and is beneficial to the development of root system and bulb hypertrophy.

The cultivation depth of garlic field is generally 20-30 cm.

After the last crop is harvested, it should be ploughed and ridged as soon as possible to activate the soil.

Application of base fertilizer: because of plastic film mulching, it is not suitable for topdressing during garlic growth. Therefore, before sowing, the sole fertilizer should be applied at one time in combination with soil preparation, and 6000 kilograms of high-quality ring fertilizer and 80 kilograms of cake fertilizer should be applied per mu.

50 kg of urea, 80 kg of calcium magnesium phosphate, 25 kg of potassium sulfate compound fertilizer and 0/.5 kg of zinc sulfate/kloc-.

Fourthly, sowing and covering the film.

Choose garlic with big head, big and neat garlic cloves, hard garlic cloves and white and fresh colors as seeds.

It is generally required that 100 garlic cloves weigh more than 400g, and the local temperature should be stabilized at 18- 19℃, so that the height of garlic seedlings can reach more than 25cm during wintering, which is beneficial to wintering.

Sowing requires row spacing of about 15cm, plant spacing of 6-8cm, ditching depth of 10cm, seed petals arranged in the ditch and kept upright, and the density per mu is controlled at 40,000-50,000 plants.

Then cover with soil and double plastic film.

When covering the film, it is required that the film should be laid flat on the border, without wrinkles and gaps under the film, so that the film can stick to the border and avoid breeding weeds.

When more than 50% of garlic seedlings emerge, the film is broken, and the film is punched with a sharp iron wire, and the diameter of the hole is controlled at about 1 cm.

Verb (abbreviation of verb) Tian Tuan management

Water 1 time immediately after sowing, water for the second time after the seedlings are fully grown, and water with antifreeze 1 time before soil freezing.

After a few days, cover with straw curtains or corn stalks to prevent cold and drought, and ensure garlic seedlings to survive the winter.

Before and after the "spring equinox", it is necessary to cover the soil in time and water it in sunny and warm weather to promote the early growth of garlic seedlings.

From the beginning of April to the end of April, water 1 time according to soil moisture, water for 5-7 days, and topdressing with water for 2-3 times. Generally, ammonium sulfate or urea 10- 15 kg is applied per mu, and watering is stopped 3-4 days before bolting.

Always keep the soil moist after the garlic bolt is harvested to promote the rapid growth of garlic, and stop watering 2 ~ 3 days before the harvest.

Six, pest control

When garlic seedlings grow to 2 leaves 1 heart, cypermethrin and other low-toxic pesticides are used to control garlic thrips and garlic flies.

Pay attention to the prevention and control of garlic maggots and garlic moths in mid-March, and use the same medicine as above.

To control garlic leaf blight, 50% polymyxin or 65% metalaxyl 1000 times solution was used.

Seven, timely harvest

Single-layer plastic film is generally harvested in the middle and late May in the central and southern areas of our province.

Garlic cultivated with double plastic film can be harvested 7- 10 days in advance, that is, it can be harvested at the end of April and the beginning of May. At this time, most of the leaves of the plant have dried up and the false stems have softened, in order to gain time and gain early harvest. Because the quantity of fresh garlic in the market is small and the price is relatively expensive, we should seize the favorable opportunity to get higher income in time.

The above article introduces in detail the method and technology of double-film mulching cultivation of garlic. Thank you for your consultation and support.

If you don't know enough about garlic film mulching cultivation techniques, you can pay more attention to the public agricultural resources network to learn more and more detailed agricultural techniques.