Integration of Water and Fertilizer in Mountain Orchard
In the narrow sense, the integration of water and fertilizer is to fertilize through the irrigation system, and crops absorb nutrients while absorbing water. Fertilization, which is usually carried out at the same time as irrigation, is realized by injecting fertilizer solution into the irrigation pipeline under pressure. Irrigation water dissolved with fertilizer is sprayed on crops or dripped into the root zone through irrigators (sprinklers, micro-sprinklers, emitters, etc.). In a broad sense, it means to apply fertilizer after dissolving, including spraying, pouring, spraying, pipeline application and so on. When drip irrigation is implemented in mountain orchards, in order to save money, if the orchard terrain height difference is within 15 meters, it is generally not necessary to build a reservoir to install drip irrigation, as long as the pump with suitable head and flow is selected. For those whose terrain height difference is more than 25 meters, it is best to build a reservoir at the top of the orchard and use gravity drip irrigation system to save money. Emitters are divided into ordinary emitters and pressure compensated emitters. The flow rate of ordinary emitters is proportional to the pressure and can only be used on flat ground. The pressure compensation emitter can maintain a uniform and constant flow within a certain range of pressure change. There are often different degrees of height difference in mountain orchards, tea gardens or forest areas, and the use of ordinary drippers will lead to uneven effluent, which is usually characterized by less water in the upper part and more water in the lower part. This problem can be solved by using pressure compensation emitter. In order to ensure the uniformity of the effluent from all parts of the pipeline, pressure compensated emitters should be used when the relief height difference is more than 3 meters.
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Regulate the temperature, light, water, fertilizer and vegetables with less diseases.
Q: what is the technology of integrating water and fertilizer? What methods are commonly used at present? Expert: strictly speaking, the integration of water and fertilizer is to dissolve fertilizer into irrigation water and use water and fertilizer to supply water and fertilizer to the root soil of crops at the same time. One of the advantages of the integration of water and fertilizer, it can exert the synergistic effect of fertilizer and water, and make fertilizer and water benefit.
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Integrated Technology of Water and Fertilizer for vegetables in greenhouse
"drip" to vegetables in greenhouse is actually a technology of integration of water and fertilizer, which integrates irrigation and fertilization. Specifically, with the help of pressure system (or natural drop of topography), soluble solid or liquid fertilizer is prepared according to the characteristics of soil nutrient content and fertilizer demand of vegetable species.
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