Detailed Explanation of Key Points of Greenhouse Vegetable Cultivation Techniques

Greenhouse vegetable cultivation techniques are a commonly used planting technique. Because they have a good heat-preservation effect, they can be used to grow out-of-season vegetables. So what exactly are greenhouse vegetable cultivation techniques?

I. Basic Introduction to Greenhouse Vegetable Cultivation Techniques

Greenhouses were originally special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, greenhouses have been used for potted flower and cut flower cultivation; in fruit tree production, they are used to cultivate grapes, strawberries, watermelons, muskmelons, peaches and citrus, etc.; in forestry production, they are used for forest tree seedling raising, cultivation of ornamental trees, etc.; in the breeding industry, they are used for raising silkworms, chickens, cattle, pigs, fish and fry, etc.

When building a greenhouse, choose a place facing the sun, sheltered from the wind, high and dry, with good drainage, and without soil-borne infectious diseases.

When covering the greenhouse with film, avoid damaging the greenhouse film. If it is a bamboo-frame greenhouse, pay even more attention. Before covering the film, the protruding parts on the surface of the frame should be shaved flat or wrapped with old cloth. Then, when using springs to fix it, a layer of old newspaper should be added at the slot.

II. Greenhouse Vegetable Cultivation Techniques

Greenhouse vegetables need reasonable watering, fertilization, and a guarantee of sufficient light. Because different vegetables have not entirely the same requirements for water, fertility, and light, the requirements of the vegetable type being grown should be taken as the standard.

For example:

Early-maturing cultivation of solanaceous and cucurbit vegetables is the most common project in greenhouse cultivation. Open-field cultivation is generally planted from late March to mid-April and harvested from early May to July. Greenhouse cultivation can be planted earlier from January to March and harvested from late March to July. They come to market earlier, yields are higher, and the flowering and fruiting period is extended. In addition, according to market demand, warm-loving green leafy vegetables such as amaranth, Malabar spinach, and water spinach can be sown earlier and can also come to market earlier.

For tomatoes, generally 4 beds are made in one greenhouse, with the bed including the ditch at 1.5 m, and double-row planting is used. The planting row spacing is generally about 75 cm, the plant spacing is 20—30 cm, and for eggplant the plant spacing is 40—50 cm, with 2000—2400 plants planted per mu.

In addition, field management such as temperature, fertilizer and water, trellising and pruning must also be carried out. After the vegetables mature, they can be picked.