Cored micro pipe irrigation system for greenhouse climbing crops

Abstract

The invention belongs to the technical field of irrigation, and relates to a cored micro pipe irrigation system for greenhouse climbing crops. The system mainly comprises a main water source inlet pipe, a main water source valve, a filter, an electromagnetic valve, a main pipe, hoses, switchover joints, a branch pipe support frame, branch pipes, stress meters, cored micro pipe irrigators, soil moisture sensors and a controller. According to the system, each cored micro pipe is used as an irrigator for delivering water from each branch pipe to the roots of crops; the irrigation water from a water source is filtered by the filter, flows to the main pipe and each branch pipe and enters each cored micro pipe irrigator from the water outlet of each branch pipe; the water entering each cored micro pipe is uniformly delivered to irrigate the crops under the coaction of gravity, capillary force and siphon force of a core layer; under the control of the controller, intelligent automatic irrigation is realized in the whole crop growth period; and for the climbing crops, climbing ropes are substituted by the cored micro pipes, so the climbing ropes are not required to be built any more. The system is suitable for water-saving irrigation of the greenhouse climbing crops.

Description

technical field [0001] The invention belongs to the technical field of irrigation, in particular to a cored micropipe irrigation system for greenhouse climbing crops. Background technique [0002] my country is a large agricultural country, and it is also a country that is seriously short of water, and the distribution of water resources in time and space is very uneven, and the way of water use is also very unreasonable. 70% of the fresh water consumed in our country is agricultural water, and 90% of agricultural water is irrigation water. In recent years, my country's agricultural industrial structure has undergone tremendous changes. Greenhouse crops only use 15% of the arable land, and more than 120 million people are employed, accounting for more than 30% of farmers' income. As of the end of 2008, the scale of protected horticulture in my country reached 3.46 million hectares. In 2009, the area of ​​facilities increased by more than 300,000 hectares, and the direct out...

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Problems solved by technology

[0005] 1. The soil moisture in the greenhouse is easy to evaporate, and large-scale irrigation does not achieve the water-saving effect, and it is easy to grow weeds, and the relative humidity is too high, so that the crops are easy to breed diseases and insect pests

[0006] 2. Greenhouse irrigation water enters the crop root zone directly from the water source through the irrigation pipeline. Lower water temperature easily reduces the absorption function of the root system and affects soil microbial activities, reducing crop quality and yield

[0007] 3. Irrigation pipes are laid on the surface or buried underground. When farming and planting irrigation, they need to be folded and laid repeatedly, which is labor-intensive and time-consuming, and the pipes are easily damaged.

[0008] 4. Micro-irrigation emitters such as traditional drippers and seepage irrigation pipes are prone to blockage, resulting in shortened service life or scrapping of equipment

[0009] 5. Many crops planted in the greenhouse belong to the climbing vine crops, and a large number of climbing ropes need to be erected, which is labor-intensive, time-consuming, and material-intensive

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