Soilless cultivation For Agricultural Greenhouses

Soilless cultivation For Agricultural Greenhouses

Soilless cultivation uses peat or forest humus, expanded vermiculite and other lightweight materials as seedling substrates to fix plants, allowing plant roots to directly contact nutrient solution, and using mechanized precision sowing for one-time seedling growth technology. The artificially prepared culture medium is used in soilless culture to supply the needs of plant mineral nutrition. Soilless cultivation is a cultivation technique that uses nutrient solution containing essential elements for plant growth and development without using natural soil to provide nutrients so that plants can normally complete the entire life cycle. In soilless cultivation technology, the key to successful cultivation is whether it can provide plants with a nutrient solution with a coordinated proportion and an appropriate concentration. Soilless vegetables and the profit margins of soil-cultivated vegetables are issues that growers are very concerned about.

First, the technical points of soilless vegetable cultivation

1. Pay attention to the preparation of the matrix, and effectively mix the organic matrix with the inorganic matrix through a scientific ratio. Afterwards, take a covering film to complete high temperature disinfection, or use a formalin solution to complete fumigation disinfection, or use a disinfection box to complete steam disinfection.

2. It is necessary to make reasonable adjustments to the pH according to weighing, configure the mother liquor, configure the process of working nutrient solution, make effective configuration of the nutrient solution, and then make scientific management of the concentration and temperature of the nutrient solution, as well as the pH and oxygen content. Make reasonable adjustments. The nutrient solution generally needs to be maintained for three weeks to make necessary updates, and the pH should be in the range of 5.5-6.5. In addition, it is necessary to ensure sufficient oxygen content of the nutrient solution by stirring or aeration pump regularly.

3. Pay attention to the reasonable configuration and installation of the liquid supply system, the design and layout of the infusion pipeline should be scientific and reasonable, the distance between the dripping parts should be accurate and reasonable, and the irrigation should be precise and targeted. The benefits of soilless cultivation

1. Water saving, fertilizer saving, high yield

Various nutrients required by crops in soilless culture are artificially formulated into nutrient solutions for application, with less water loss, balanced nutrients, and high absorption efficiency. Nutrients are scientifically supplied according to crop types and different growth stages of the same crop. . Therefore, the crops grow robustly and have strong growth potential, which can give full play to the potential of increasing production.

2. Clean, hygienic and pollution-free

Soil cultivation applies organic fertilizer, the fertilizer decomposes and ferments, produces odor and pollutes the environment, and also causes the eggs of many pests to breed, harming crops, while soilless cultivation uses inorganic fertilizer, which does not have these problems and can avoid polluted soil. pollution of heavy metals and other harmful substances.

3. Save labor and effort, easy to manage

Soilless cultivation does not require cultivating, ploughing, weeding and other operations, saving labor and labor. Watering and topdressing can be solved at the same time, and the liquid supply system is regularly and quantitatively supplied, which is convenient for management, does not cause waste, and greatly reduces the labor intensity.

4. Avoid continuous cropping obstacles

In the field planting management of vegetables, the rational rotation of the land and the avoidance of continuous cropping are one of the important measures to prevent the serious occurrence and spread of diseases. Soilless cultivation, especially hydroponics, can fundamentally solve this problem.

5. Not subject to regional restrictions and make full use of space

Soilless cultivation completely separates crops from the soil environment and is not limited by soil quality and water conservancy conditions. Many deserts, wastelands or areas that are difficult to cultivate can be utilized by soilless cultivation methods. Get rid of the constraints of land, soilless cultivation can also be free from space restrictions, and the use of urban abandoned factory buildings and flat roofs of buildings to grow vegetables and flowers has virtually expanded the cultivation area.