Vegetable planting techniques in out-of-season greenhouse

Selecting land to build a shed: the construction of the shed requires leeward, sufficient light, convenient drainage and irrigation, and flat terrain, and after it is built, it can be sterilized by chemical disinfection or high-temperature greenhouse. Soil preparation and fertilization: apply sufficient base fertilizer after turning over the soil deeply, and the nutritious soil can also be used. Select vegetable varieties: early-maturing varieties with cold tolerance and strong disease resistance, such as cucumbers and peppers, should be selected. Late management: watering thoroughly after planting, fertilizing and weeding regularly, keeping warm and keeping warm ahead of time.

First, choose a place to build a shed.

1. Vegetables in out-of-season greenhouse should be built in places with leeward, convenient drainage and irrigation, sufficient light and relatively flat terrain, and plain or hilly areas are preferred.

2. The greenhouse is mainly divided into two types: spring and autumn greenhouse and winter warm greenhouse, spring and autumn greenhouse can be selected for planting in early spring and late autumn, and winter greenhouse can be used for winter planting.

3. After the greenhouse is built, sterilization and disinfection can be carried out by means of chemical disinfection or high-temperature stuffing shed, which can effectively prevent and control diseases and insect pests. About 15 days before planting, the multi-white dust agent can be sprayed in the shed, and then sealed. Make full use of chlorothalonil smoke remover for smoking, about a week or so, in order to improve the effect of sterilization and disinfection, carbendazim can be sprayed on the ground.

II. Soil preparation and fertilization

1. In order to make vegetables grow better, nutritious soil should be mixed before planting, and fertile soil should be selected and fertilized together with soil preparation.

2. Generally apply fertilizer about 30 days before planting, sprinkle an appropriate amount of rotten fertilizer on the soil, and then plough it so that it can be evenly mixed with the soil. Note that if unfermented fertilizer is applied, toxic gas will be produced when fermented in the soil, affecting the growth of vegetables.

Third, select vegetable varieties

Planting out-of-season vegetables, in order to increase yield, we should choose early-maturing varieties with good disease resistance and cold tolerance, such as cucumber, eggplant, tomato, pepper, towel gourd, zucchini and so on, followed by spinach and cabbage in winter.

IV. Field management

The main results are as follows: 1. Vegetables can be planted by grasping nests. In order to improve the survival rate, organic fertilizer can be applied in the planting hole. After planting, the soil should be watered thoroughly to keep the soil moist. The water requirements for different vegetable varieties are different. In order to meet the growth needs of different vegetables, watering times should be reasonably controlled.

2. In the later stage, in order to promote the growth of vegetables, weeding should be planted and carried out together with loosening soil, so as to promote the root growth of seedlings.

3. In the later stage, it is necessary to strengthen the prevention and control of diseases and insect pests, remove diseases and weak plants in time, prevent the spread of diseases and insect pests, and spray growth inhibitors and auxin reasonably.

Keep out the cold and keep warm

1. Out-of-season vegetables should keep warm in advance, such as lack of nutrition in seedling roots, poor cold resistance, lack of water, low ground temperature and low temperature at night, which can easily lead to freezing injury.

2. Preventive measures: let the soil maintain a certain humidity, loosen the soil regularly in order to prevent soil consolidation, plant and spray foliar fertilizer to maintain ventilation, so that vegetables can use external temperature as soon as possible, in order to increase the temperature in the greenhouse, multi-layer fresh-keeping film can be covered at night.