Tomato organic ecological soilless cultivation

    We often hear the aunt who sells vegetables say this in the vegetable market: "This kind of vegetable is from soilless cultivation. It is fresh and healthy. Let's take a pound~" So, what is the soilless cultivation in the mouth of the aunt? ? Let's take soilless cultivation of tomatoes as an example to explore together.

    What is Soilless Culture

    Soilless cultivation can be divided into substrate cultivation and substrateless cultivation according to whether the substrate is applied or not. Substrate cultivation has made great progress in experimental research in many places.

    Soilless cultivation is generally carried out in a modern greenhouse with advanced facilities and scientific cultivation technology, which is the latest achievement of modern vegetable cultivation. In the late 1970s, when my country introduced foreign modern greenhouse facilities, soilless vegetable cultivation technology was also introduced. Many scientific research units and agricultural colleges have carried out soilless cultivation experiments and achieved gratifying results, but so far , is still in the development stage, and has not been widely promoted to actual production. This is mainly because the equipment investment is large, the production cost is high, and the technology is relatively complex.

    Soilless cultivation is mainly carried out in modern greenhouses. In addition to greenhouse automation facilities, there are also basic facilities for nutrient management, including water-tight cultivation tanks, facilities for supporting crop root systems and managing root groups, and facilities for reasonably delivering nutrient solutions to roots ( Including supplemental oxygen, filtering harmful substances, maintaining a certain temperature).

   With the rapid development of vegetable production in my country's protected areas, especially in solar greenhouses, in view of the serious diseases of continuous cropping, unreasonable fertilization, insufficient labor, and large investment in foreign soilless cultivation facilities, after several years of experimental demonstrations, it has been gradually promoted. Soilless cultivation will open up a broader prospect for the development of vegetable production in my country's protected areas, especially in solar greenhouses.

     Soilless Culture Tomato Planting Technology

    temperature requirements

   Tomato likes temperature, sufficient light and suitable temperature difference are conducive to the accumulation and ripening of nutrients, promote the healthy development of plants, prevent leggy growth, enhance disease resistance and stress resistance of tomatoes, and increase yield.

Humidity requirements

   The basic principle is that high humidity is not required in other periods except for the slow seedling period after germination, emergence and planting, which require higher temperature and humidity. For water requirements, except for proper water control before planting, flowering period and turning maturity period, sufficient water supply should be ensured in other periods.

     Humidity Management

     The relative humidity in the greenhouse should be controlled at 70%-80% as much as possible. When the indoor humidity is high or the temperature is too low, we need to open the air vents to allow the air to flow to create a suitable humidity environment. At the same time, a certain amount of ventilation can also prevent the occurrence of diseases. When necessary, you can also use a dehumidifier to dehumidify the room.

     Fertilization principle

    Tomatoes require a large amount of fertilizer, and sufficient nutrition should be ensured in each period, but there are certain differences in the amount of fertilizer demand in each growth period. The early stage focuses on nitrogen fertilizer, and the later stage focuses on potassium fertilizer, and the demand for phosphate fertilizer is carried out throughout the growth period.

     Water and Fertilizer Management

     In the early stage of tomato fruit setting, it is the period of flowering and pollination, and it is also an important period for the growth of branches and leaves. During this period, we should pay attention to the control of water and fertilizer, apply fertilizer reasonably, and learn to use nitrogen, phosphorus and potassium fertilizer as the main and appropriate supplement. Phosphate and calcium fertilizers.