A Detailed Explanation of the Key Points of Greenhouse Soilless Cultivation Technology
Greenhouse soilless cultivation means that crops are not grown in soil, but planted in a nutrient solution dissolved with minerals. This technology has advantages such as saving water, saving fertilizer, high yield, clean and hygienic with no pollution, saving labor and effort, and being easy to manage. As long as there is a certain amount of cultivation equipment and management measures, crops can grow normally and achieve high yields.
The Advantages of Greenhouse Soilless Cultivation Technology
1. Saving water, saving fertilizer, and high yield
In soilless cultivation, the various nutrient elements required by crops are artificially formulated into a nutrient solution and applied. Water loss is low, nutrient components remain balanced, and absorption efficiency is high. Moreover, nutrients are supplied scientifically according to the crop species and the different growth stages of the same crop. Therefore, the crops grow robustly and have strong growth vigor, allowing their yield-increasing potential to be fully brought into play.
2. Clean and hygienic with no pollution
In soil cultivation, applying organic fertilizer causes the fertilizer to decompose and ferment, producing odors that pollute the environment, and it also causes the eggs of many pests to breed and harm the crops. In contrast, soilless cultivation applies inorganic fertilizers, so these problems do not exist, and it can also avoid pollution from harmful substances such as heavy metals in contaminated soil.
3. Saving labor and effort, and easy to manage
Soilless cultivation does not require operations such as intertillage, turning the soil, or hoeing weeds, saving effort and labor. Watering and topdressing are solved at the same time, and are supplied quantitatively at fixed times by the liquid supply system, making management convenient, avoiding waste, and greatly reducing labor intensity.
4. Avoiding continuous cropping obstacles
In the field planting management of vegetables, reasonable crop rotation of the land and avoiding repeated cropping year after year are one of the important measures to prevent the severe occurrence and spread of diseases. Soilless cultivation, especially when using hydroponics, can fundamentally solve this problem.
5. Not limited by region or season
Soilless cultivation completely separates crops from the soil environment, free from the limitations of soil quality and water conservancy conditions. Many deserts, wastelands, or areas on Earth that are difficult to cultivate can all be utilized by adopting soilless cultivation methods. Free from the constraints of land, soilless cultivation can also be free from spatial limitations. Using abandoned urban factory buildings or the flat rooftops of buildings to grow vegetables and flowers invisibly expands the cultivation area.
6. Beneficial for realizing agricultural modernization
Soilless cultivation frees agricultural production from the constraints of the natural environment and allows production to proceed according to human will, so it is a mode of controlled agricultural production. Farming to a greater extent according to quantitative indicators is beneficial for realizing mechanization and automation, thereby gradually moving toward an industrialized mode of production.