Detailed Explanation of Key Points of Greenhouse Vegetable Cultivation Techniques

The appearance of plastic tunnels has made off-season vegetables possible, and due to their good insulation performance, they are also deeply loved by farmers. So below, the editor will introduce to you greenhouse vegetable cultivation techniques as well as the prospects for greenhouse vegetable planting.

1. Greenhouse Vegetable Cultivation Techniques

1. Leveling the land

The first step in greenhouse vegetable cultivation is to level the land. The soil must be turned over and weeds removed, and at the same time, depending on the vegetables being planted, some base fertilizer can be added to the soil. The fertilizer should not be too concentrated, otherwise it will cause the soil to harden and other forms of deterioration.

2. Reasonable greenhouse construction

The span of the greenhouse should not be too large, generally not exceeding 12 m, and the length should not exceed 120 m. It is best to have soil walls on three sides, as this provides better insulation. At the same time, suitable steel frames should be chosen for support, which can provide better support. Choose drip-free film to cover the greenhouse surface, as this can increase the internal temperature.

3. Vegetable selection

Due to the characteristics of the greenhouse itself, the selection of vegetables must meet several key points. The first is low light requirements. In winter, the daylight hours are not long to begin with, and the covering of the greenhouse further reduces the sunlight entering, so shade-tolerant vegetables must be chosen. The second is strong resistance. The ventilation capacity of a greenhouse is average, so the plants must have the ability to resist diseases. The third is tolerance of high humidity. The humidity inside a greenhouse is often very high and difficult to control, so the vegetables must be tolerant of high humidity.

4. Regulating temperature

One major advantage of a greenhouse lies in its good insulation, which is what allows it to provide a growing environment for some vegetables. But the temperature should not be too high and must be kept below 33°C. Once it rises above this temperature, it must be cooled immediately, and the greenhouse can be opened for ventilation.

5. Drip irrigation watering

Because the humidity in a greenhouse is relatively high, watering should not be excessive, and drip irrigation is generally the better method. Drip irrigation itself can also save water, making it an economical and practical method.

2. Prospects for Greenhouse Vegetable Planting

The prospects for greenhouse vegetable planting are very considerable. As everyone pursues healthy ingredients, the demand for vegetables has risen sharply in the past two years. Many vegetables grown according to the normal season cannot meet current market demand. This is where the off-season advantage of greenhouse vegetables comes into play. Nowadays, greenhouse vegetables are becoming more and more widespread, and market demand is also gradually increasing.