Greenhouse potato cultivation, greenhouse potato cultivation technology planting method

First, the selection of seeds and the selection of plots, where the seeds of the potatoes should be harvested when the plant has just bloomed (late April), after harvesting the selection of cool, ventilated, attic tile, to prevent snow falling on and rodent infestation. Select high-quality seeds and dress seeds with a new high-fat film to isolate pests and diseases and improve germination rate. Choose the sandy soil with flat terrain, convenient drainage and irrigation, fertile and loose soil, and good permeability for planting, and the field (land) plot that has not been planted with Solanaceae crops or rice before is the best.

2. Fertilization and shedding for furrow sowing deep ploughing the land, apply sufficient base fertilizer, and open the ditch, waist ditch and shed ditch for operation and drainage and irrigation. If the plot planted in the original shed is used, a new high-fat film should be added with quicklime, and the sown should be sown after sterilization and disinfection of the shed. The material for building a shed is mainly small mangosteen, the bottom of the shed is wide, the shed arc is m, and the shed is high.

Two furrows in the shed, each furrow is 2m wide in the ditch 35cm in the shed, 70cm between the shed and the shed operation ditch, the length of the shed depends on the size of the field, generally every 1hm2 can build 30 45 greenhouses.

Third, timely sowing, the sowing period is January 24 28, the sowing amount per 1hm2 is 1800 2250kg, according to 1hm2 planting about 75000 standard digging holes live broadcast, the general plant spacing is 20 24cm, the row spacing is about 60cm, digging oblique holes. When sowing, the potato seeds that have germinated about 7cm will be placed obliquely in the hole**, and the depth depends on the length of the seed potato sprouts. After the seedlings are sown into the hole, they are covered with nutrient soil, and the thickness of the cover soil is suitable for not seeing the sprouts, and the new high-fat film is sprayed on the surface to keep the moisture to prevent the soil from forming and improve the seedling emergence rate.

Fourth, fertilizer and water management should be stuffy for about 10 days before sowing to seedlings to maintain soil temperature and humidity in the shed and promote early emergence of seedlings. When the seedlings are more than 70% of the start to release the wind to cool down, generally after sowing 10 15 days can produce all the seedlings, after the emergence of seedlings, choose a sunny day shallow loose soil, soil ridge ridges, and timely watering, weeding, reasonable fertilization. It should be sprayed once before the flowering, the tuber formation stage and the expansion stage of the potato, so as to effectively control the wild growth of the branches and leaves in the upper layer of the ground, accelerate the ultra-rapid expansion of the underground tuber, enhance the ability to resist insect pests, and ensure the high quality, efficiency and harvest of potatoes.

5. Pest control, use a moderate amount of phoxanthion plus a new high-lipid film to remove underground pests during sowing or before tubing. For aphids, 28-star ladybugs, early blight, late blight and other pests and diseases, targeted pesticides should be sprayed in accordance with the requirements of plant protection for prevention and control, and at the same time, 800 times of the new high-fat film should be sprayed to enhance the efficacy.

When cultivating potatoes in greenhouses, it is necessary to pay attention to the turning of the soil, the catalysis of potato seeds, the method of sowing and the breaking of the film and the release of seedlings. The land used for planting should be deeply cultivated, and the potato seeds should be cut into pieces to receive light to produce bud tips, placed in the shed at a certain distance and then covered with film, and wait until the seedlings emerge to break the film and release the seedlings.

1. Turn over the soil

Before planting potatoes in greenhouses, the land selected for planting should be turned and cleared. Potatoes are deep ploughing crops that require deep soil layers and loose soil for growth, so the land should be deeply cultivated for 20-25 cm to loosen the soil, remove weeds, increase the permeability of the soil, and improve its resistance to waterlogging.

2. Catalytic potato seeds

Potatoes need to be catalyzed to increase their survival rate before they are officially planted, so about 5 days before planting, the potato seeds should be placed in a sunny place of about 15-20 degrees Celsius, spread evenly and turn frequently, to ensure that each potato seed is evenly visible, and then cut it into pieces according to the bud point.

3. Sowing and covering film

Sterilize the potato seeds with bud points with plant ash, then choose to sow seeds at about 3-4 months when the soil temperature is 7-8 degrees Celsius, bury the diced potato seeds in the turned soil, place the bud eyes upward, sow at a depth of about 8-1 cm, spray some metolachlor, and then cover the whole field with a film.

4. Break the film and release the seedlings

If the temperature and humidity are suitable, generally about 20-25 days after sowing, the seedlings will begin to drill out of the soil and jack up the film, at this time to check in time, at the top of the bud point with a tool to puncture the film so that the bud point drills out of the film, and then plug the gap with fine sand, the principle is to enlarge not small, put green not yellow.

It is best planted in December, and it can be dug in April, when the market is the highest, and the potatoes of the first year have not yet sprouted, and there are many markets, and there are more late listings.