What is good to plant in greenhouses, and what is the most profitable to grow in greenhouses

The early maturing cultivation of eggplant vegetables is the most common application of greenhouse cultivation.

In addition to high-stem vegetables such as melons and eggplants, greenhouses can also cultivate leafy vegetables with high economic value, such as fungus, water spinach, celery, lettuce, etc., for early spring, late autumn, and overwintering cultivation, so as to avoid frost damage, promote growth, improve yield and prolong the purpose of out-of-season listing, and have good economic benefits.

Note: The harmful gases in the greenhouse not only affect the growth and development of vegetables, but also directly endanger the health of vegetable farmers. Therefore, we must actively take measures to prevent and control it.

1. Scientific fertilization of greenhouse vegetables should be based on high-quality soil miscellaneous fertilizer, appropriate increase in phosphorus and potassium fertilizer, appropriate amount of nitrogen fertilizer, and adhere to the base fertilizer, supplemented by top dressing. Top dressing should be strictly in accordance with the principle of "small amount and many times" to prevent excessive fertilization. The topdressing method adopts deep application by ditching, and then covers it tightly with soil after application, and watering it in time to dilute the fertilizer.

2. Timely ventilation and use of the noon temperature to open the vent to make air circulation; Even on cloudy or snowy days, a short period of ventilation should be carried out at noon to reduce harmful gases in the shed as much as possible and reduce air humidity.

3. When the plastic greenhouse to reduce the source of toxic gas is heated by coal fire, the fuel should be fully burned as much as possible, and a chimney should be installed on the stove to export harmful gases out of the shed.

4. Choose non-toxic plastic film and do not use plastic film mixed with more plasticizer as the shed film.

It's usually vegetables, but if you feel business-minded, you can grow some flowers and sell them to florists.

The most profitable vegetables grown in greenhouses are: oyster mushrooms, cream strawberries, toon sprouts, okra, etc.

1. Oyster mushrooms. <>

The technical requirements for planting oyster mushrooms in greenhouses are very low, and the reproductive ability of oyster mushrooms is also very strong, and it is easy to manage, and only need to do a good job of temperature control. Due to the suitable temperature of the greenhouse, the number of harvests is about 7 times a year. About 15 kg can be harvested at a time.

When planting oyster mushrooms, it is necessary to pay attention to the permeability in the greenhouse, ensure a certain amount of scattered light, and control the size of the greenhouse.

2. Creamy strawberries.

There are many types of strawberries, but cream strawberries are very popular right now. It is precisely because of the temperature difference in the greenhouse and the variety advantage that the ** of cream strawberries is more than three times higher than that of ordinary strawberries. Cream strawberries do not need to be deliberately arranged in cultivation details, the vitality is relatively tenacious, and the harvest time is also many times.

The profit margin is relatively high, and planting does not require too much experience, so it is recommended to arrange greenhouse planting projects for novices.

3. Toon buds.

In recent years, everyone's familiarity with toon has been deepening, mostly because it is expensive. In fact, the reason why toon is expensive is because of its high nutritional value, short consumption period, small production, and large market demand. Properly planted in greenhouses, the planting technology of toon buds is also relatively simple, and the market is also relatively expensive.

4. Okra. <>

Okra is also a relatively popular vegetable in China in recent years, and the nutritional value of okra is very high. It is a kind of health care vegetable, and the market is constantly going on every year. If it is planted in greenhouses, its temperature and humidity can be well controlled to create a good growth environment for okra.

And if we use greenhouses to grow okra and sell it out of season, then the profit is also very large.

Precautions for greenhouse planting

1. Strengthen ventilation and reduce the temperature of the shed. When vegetable farmers plant summer vegetables, in order to avoid high temperature obstacles in the greenhouse, they should pay attention to opening all the upper and lower air outlets of the greenhouse, so that the cold air outside the shed enters the shed, and the hot air in the shed forms a convection flow to accelerate the discharge of hot air, which is conducive to the reduction of the temperature in the shed.

2. Use a shade net to cool down. When the temperature in the shed cannot be controlled within the required range suitable for vegetable growth through the method of ventilation, vegetable farmers should use shade nets to cool down. Vegetable farmers should put down the shade net when the temperature in the shed is close to the highest temperature suitable for vegetable growth in the morning, and roll up the shade net when the temperature in the shed is lower than the maximum temperature suitable for vegetable growth in the afternoon.

3. Spray at noon to cool down. At noon in summer, because the temperature in the shed is high and the evaporation of leaves is large, the water absorbed by the roots cannot meet the needs of vegetable transpiration. Vegetable farmers can install micro sprinkler spray in the shed to reduce the temperature of the shed, which can also increase the air humidity in the shed, prevent the drying of the stigma of the vegetable flower column, promote pollination, and prevent the flower and fruit drop of vegetables.

Novice greenhouses are suitable for species:

1. Strawberries

Novice greenhouses can grow strawberries. Strawberries are suitable for growing in soils with rich organic matter content and loose soil, and sandy loam or humus soil with rich trace element content and good drainage can be used when planting, and the soil needs to be renovated before planting.

2. Grapes

Strawberries can also be grown in a novice greenhouse. After planting, it can provide it with balanced nutrients and increase the growth rate of the plant. When providing nutrients to the grapes, it is necessary to pay attention to the choice of fertilization, preferably with a mixture of nitrogen, phosphorus and potassium elements in the grapes, or a well-rotted organic fertilizer to make the plants grow more vigorously.

3. Mushrooms

Novice greenhouses can also grow mushrooms, mushrooms are suitable for growing in a more humid environment, so in the process of planting, you can regularly spray water to the plants to keep the environment in a moist state, you need to choose the right water source when watering, it is best to spray non-polluted river water for mushrooms.

4. Succulent

Succulents are also suitable for novices to grow in greenhouses. However, the ventilation in the greenhouse is poor, easy to breed bacteria, resulting in succulent diseases, in the process of maintenance, it is necessary to regularly ventilate the succulents to maintain air circulation in the environment, and it is also necessary to spray carbendazim solution to the plants every other week to make the succulents grow healthily.