Water and fertilizer integrated precise hole application device for tomato yellow sand soilless culture

Abstract

The invention discloses a water and fertilizer integrated precise hole application device for tomato yellow sand soilless culture. The device comprises a water and fertilizer mixing assembly, a lifting assembly and an irrigation assembly, wherein the water and fertilizer mixing assembly is used for stirring and mixing water and a fertilizer into a nutrient solution required by tomatoes according to a certain proportion and providing the nutrient solution for the irrigation assembly, the irrigation assembly communicates with the water and fertilizer mixing assembly through a soft water pipe, acertain excess length is reserved, the irrigation assembly is used for accurately applying the nutrient solution to tomato rhizomes, and the lifting assembly is arranged under the irrigation assemblyand used for adjusting the irrigation depth of the irrigation assembly.

Description

technical field [0001] The invention belongs to the technical field of hole application devices, in particular to a precise hole application device integrating water and fertilizer for tomato yellow sand soilless cultivation. Background technique [0002] As the name implies, hole application is a fertilization method that digs holes to fill in fertilizers and bury them within a certain range around the root system of crops, which greatly reduces the volatilization of fertilizers and improves the absorption rate of fertilizers by crops. The continuous maturity of soilless cultivation technology has also promoted the development of hole application devices suitable for soilless cultivation of crops. However, according to investigations, the existing tomato soilless cultivation hole application devices often have the following problems: [0003] 1. By directly inserting the pipe near the tomato root system and infusing it with nutrient solution, it is easy to corrode the pipe ...

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Problems solved by technology

[0003] 1. Directly insert the pipe near the tomato root system and infuse it with nutrient solution, which will easily corrode the pipe and cause the root system of the crop to rot;

[0004] 2. There is only one-sided irrigation, which makes the irrigation of tomato roots uneven, which causes the tomato roots to rot due to local over-irrigation, affecting the growth of tomatoes. At the same time, there is no directionality in irrigation, which makes the nutrient solution permeate everywhere, resulting in waste;

[0005] 3. Irrigate and fertilize tomatoes separately, which greatly increases labor and cost input. At the same time, irrigation is carried out through nozzles. After each irrigation work, there is still nutrient solution in the nozzles, which is not only easy to corrode the nozzles, but also Deterioration occurs, causing the spoiled nutrient solution to be instilled into tomatoes together with the next fresh nutrient solution, thus affecting the growth of tomatoes

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