Method for realizing water, fertilizer and gas integration and carrying out greenhouse underground drip irrigation

Abstract

The invention discloses a method for realizing water, fertilizer and gas integration and carrying out greenhouse underground drip irrigation. The method is carried out based on a water, fertilizer andgas integration system for the greenhouse underground drip irrigation and can be used for continuously carrying out sufficient and in-time supply of various nutriment elements on greenhouse crops ina whole growth period to ensure that soil on root zones of the crops in a greenhouse has sufficient water, fertilizer and oxygen gas, so that the crops grow healthily; meanwhile, the method saves morewater and more energy, the participation of people is small and the automation degree is high. By adopting the method disclosed by the invention, irrigation is carried out on the crops in the greenhouse in a water-saving, fertilizer-saving and manpower-saving manner, and high quality and high yield of the crops in the greenhouse are realized.

Description

technical field [0001] The invention relates to the technical field of agricultural irrigation, in particular to a method for realizing the integration of water, fertilizer and gas for underground drip irrigation in greenhouses. Background technique [0002] Water, fertilizer, air, and heat are indispensable factors in the growth and development of crops. They each play a specific role in plant growth and are equally important and irreplaceable. They are not isolated, but interrelated and restrict each other. The suitable gas content and components in the root zone soil of crops are extremely important to the growth of crops. The lack of oxygen in the root zone will weaken the respiration of the root system, affect the transportation of water and nutrients, and inhibit the growth of crops. Therefore, improving the soil gas environment in the root zone of crops is very important for the growth of crops. As a new type of high-efficiency irrigation technology, aerated irrigat...

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Problems solved by technology

[0004] Greenhouses can provide heat when natural conditions are not suitable for growing crops, change the growth period of crops in the greenhouse and increase production, and are mostly used for the cultivation of temperature-loving vegetables, flowers and other crops in low-temperature seasons. The technology exists for intermittent irrigation and the irrigation pipe network is branched. Due to the problem of pressure difference, for the crops that need to be irrigated, some crops are irrigated with more water, fertilizer and gas, while others are irrigated with less water, fertilizer and gas. After the pipe network is laid, it will basically not change during the entire growth period of the crops. Therefore, for some crops, the water, fertilizer and gas are excessive and the growth is vigorous, while other crops are not enough.

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