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    Tidal cultivation

    来源:本站  最后更新:2017-06-08 17:06:45  作者:中农天陆  浏览:524次

      Tidal irrigation is an advanced irrigation method. Tidal irrigation can effectively promote the growth of lettuce and increase the yield. Compared with the artificial watering cultivation, the yield difference is significant, and the tidal irrigation can significantly reduce the water consumption, Consumption and consumption, compared with artificial watering 38.16% water saving, saving 27.95%, saving 76.46% of labor, significantly reducing the cost of production; so lettuce tidal irrigation cultivation and production mode of labor, increase production, can be applied In the actual production. Tidal irrigation is a way of irrigation at the bottom of the cycle of water, irrigation water at the same time as the sea water at high tide poured out of the cultivation bed, so that the culture bed placed in the cultivation of the substrate at the same time through the bottom of the container inhalation of water and fertilizer Type of irrigation, with water saving, fertilizer, labor and plant growth and other characteristics of good facilities cultivation technology developed countries have been used in production.

      1, tidal irrigation system principle
      Tidal irrigation system is based on the principle of tidal fluctuations designed a highly efficient water-saving irrigation system, which applies to all kinds of potted plants planted and managed, can effectively improve the efficiency of water resources and nutrient solution. Tidal irrigation is divided into two categories, ground and plant bed. Ground-based tidal irrigation system is a pond in the surface of a water can be installed in the pool, in which the distribution of a number of water holes and backwater hole; plant-based tidal irrigation system is in the seedbed to build a large area of ​​water storage Seedling, in the seedling set aside the water and backwater hole. In the application, irrigation water or good nutrient solution from the outlet hole diffuse, so that the entire bed in the water level slowly rise and reach the appropriate level of height (known as high tide), the cultivation of the bed drowned about 2-3 cm Depth; after a certain period of time (sufficient absorption of crop roots), after about 10-15 minutes, the nutrient solution rises to the surface of the medium in the basin by capillary action. At this time, the backwater port is opened and the nutrient solution is discharged and the nutrient solution Pool (called the ebb tide), to be another cultivator bed when the water and then send the nutrient solution. The tidal irrigation system has the ability to adjust the pH value of the nutrient solution and the various nutrient concentrations to the filtration system and disinfecting system to avoid excessive contamination of the nutrient solution. The plantation tidal irrigation system is required to use a specially cultivated bed, so the corresponding equipment costs are higher. Tidal irrigation is divided into two categories, ground and seedbed. Ground-based tidal irrigation system is a pond in the surface of a water can be installed in the pool, in which the distribution of a number of water holes and backwater hole; seedbed tidal irrigation system is in the seedbed to build a large area of ​​water storage seedlings Plate, in the seedling set aside the water and return hole. Tidal irrigation is suitable for the cultivation and management of various potted plants. Among them, the ground irrigation system for larger plant cultivation, seedbed irrigation system for smaller plant cultivation.
      2, the advantages and disadvantages of tidal irrigation
      Tidal irrigation has the following advantages: the leaves and flowers of the crop remain dry and reduce the greenhouse moisture, can reduce the breeding of bacteria; a lot of oxygen with the nutrient solution is transported to the crop roots, which makes the root system development more dynamic, The root of the disease, can promote plant growth; crops can be synchronized evenly irrigation, easy to control, improve crop quality; irrigation can achieve automatic operation, improve irrigation efficiency, reduce labor costs; with tidal seedbed, the staff can The right height to work, reduce the labor intensity; channel to keep dry, can reduce the growth of slippery algae, can reduce the accident; irrigation water can be collected and recycled, can minimize water waste, while reducing the expensive Fertilizer use cost. Use tidal irrigation to note the following: use in a greenhouse with absorbable UV-covered material; do not expose the idle chassis to sunlight for a long time; only for crops or similar production; avoid using more than normal amounts of fertilizer and chemistry Liquid; maximum load of 70kg / m2; please use in less than 60 ℃ environment.

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