Liftable water-fertilizer integrated system based on micro-spraying hose irrigation

Abstract

The invention relates to a liftable water-fertilizer integrated system based on micro-spraying hose irrigation. The liftable water-fertilizer integrated system comprises a water supply device, an irrigation pipeline system, a hanging and lifting system and a water-fertilizer automated control system, wherein the irrigation pipeline system comprises a main water conveying pipeline, a filter, branch pipelines and bilateral broadside micro-spraying hoses; the main water conveying pipeline is connected with the branch pipelines; the hanging and lifting system comprises a pillar, a lifting steel rope, a steel rope winch wheel, a lifting sliding block, a pulley block and the like, and the bilateral broadside micro-spraying hoses are hung on the pillar; and the water-fertilizer automated control system comprises a programmable logic controller, a variable flow rate fertilizer injector and the like. The liftable water-fertilizer integrated system provided by the invention can regulate the spray irrigation starting sequence and the duration of each of the bilateral broadside micro-spraying hoses on the branch pipelines, simultaneously regulate the fertilizer injection flow rate of the fertilizer injector, maintain appropriate micro-spray irrigation water pressure, ensure the uniformity in irrigation and simultaneously realize automated and precise management of fertilizer and water.

Description

technical field [0001] The invention belongs to the field of water-saving irrigation, and in particular relates to a liftable water-fertilizer integrated system based on micro-spray belt irrigation, which is suitable for micro-spray water-saving irrigation and integrated and automatic management of water and fertilizer for crops with different plant heights. technical background [0002] 1. The existing micro-spray belts are mostly laid on the ground. Due to the different plant heights, planting row spacing, and density of stems and leaves of different crops, their spray width and spray uniformity are greatly affected. , and can adjust the hanging height of the micro-spray belt and its irrigation system up and down according to the changes in plant height in different growth periods of crops. [0003] 2. After searching the existing technical literature, the Chinese invention patent "a micro-spray irrigation and fertilization system integrating water and fertilizer (CN201410...

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Problems solved by technology

[0002] 1. The existing micro-spray belts are mostly laid on the ground. Due to the different plant heights, planting row spacing, and density of stems and leaves of different crops, their spray width and spray uniformity are greatly affected. , and can adjust the hanging height of the micro-spray belt and its irrigation system up and down according to the change of plant height in different growth stages of crops

[0003] 2. After searching the existing technical literature, the Chinese invention patent "a micro-spray irrigation and fertilization system integrating water and fertilizer (CN201410587147)" discloses that the sprinkler is fixed on the lifting column, but there is no specific design, and the micro-spray belt is in the There are still many scientific and technical problems that have not been solved in the actual suspension laying and lifting process

After searching the existing technical literature, there is no relevant water and fertilizer automatic control system that can automatically control the switch of the submersible pump and the solenoid valves of each branch pipeline according to the monitoring data of water content in the field and the water pressure and flow monitoring data of the main water pipeline to adjust The micro-spray belt connected to each branch pipe starts the sequence and duration of sprinkling irrigation, and can simultaneously adjust the fertilizer injection flow rate of the fertilizer injector. While maintaining the appropriate micro-spray irrigation water pressure and ensuring the uniformity of irrigation, automatic and precise management of fertilizer and water can be realized.

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