Static type shallow nutrient solution and soilless culturing method

Abstract

A static soilless culture method with shallow liquid includes such steps as preparing nutritive liquid without deposition, choosing seeds, germinating, breeding, planting the seedlings on a floating plate above said nutritive liquid by passing their root systems through it, growing and harvesting.

Description

technical field [0001] The invention relates to a plant cultivation technique, in particular to a static shallow liquid soilless cultivation method. Background technique [0002] The core technology of soilless cultivation is nutrient solution. Traditional soilless cultivation uses the circulation of nutrient solution to provide balanced nutrition to planted crops. This is to prevent the accumulation of positive and negative ions in the nutrient solution and to increase nutrition by using the drop of the cycle. The dissolved oxygen in the water can eliminate the local accumulation of harmful metabolites on the root surface, and re-dissolve the nutrients that have failed due to precipitation, so as to prevent the occurrence of deficiencies. Although the above measures have been taken, the balance relationship between the elements in the nutrient solution after being absorbed by plants for a period of time will still be destroyed, and the residual liquid must be treated. There...

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Problems solved by technology

Although the above measures have been taken, the balance relationship between the elements in the nutrient solution after being absorbed by plants for a period of time will still be destroyed, and the residual liquid must be treated. There are generally two processing methods: one is "open", and the residual liquid The liquid is discharged from the cultivation tank and discarded. The disadvantage of this method is that it increases the cost of cultivation, and it will pollute the environment, so it should not be advocated; Utilization, which means increasing auxiliary investment, relying on technicians and special instruments, ordinary farmers cannot invest in the application

In addition, traditional soilless culture cannot dissolve all the nutrients together when configuring the concentrated stock solution, because after concentration, the product of the concentration of some ions exceeds its solubility product constant and forms a precipitate, so the solution must be divided into A, B, C, and D mother liquors are stored separately, and they are re-blended and prepared when they are used. The operation is cumbersome

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