Water and fertilizer treatment system of drip irrigation under plastic film on rice

Abstract

The invention discloses a water and fertilizer treatment system of drip irrigation under plastic film on rice. The water and fertilizer treatment system comprises a sand-removing warming pond and a water-fertilizer pond, wherein the sand-removing warming pond is cylindrical, a water inlet of the sand-removing warming pond is connected with the side wall of the sand-removing warming pond and is tangent with the surface of the sand-removing warming pond, a blowdown pipe is arranged at the bottom of the sand-removing warming pond, and a blowdown valve is arranged on the blowdown pipe. The water and fertilizer is characterized in that a water outlet pipe is arranged at the bottom of the sand-removing warming pond, a water inlet end of the water outlet pipe is arranged at the center of the sand-removing warming pond, the height of the water inlet end of the water outlet pipe is large than that of an inlet of the blowdown pipe, the water inlet end of the water outlet pipe extends into a place which is at a distance of 1 / 3 water depth from the water level, an outlet of the water outlet pipe is connected with the bottom of the water-fertilizer pond, a vertical trash rack is arranged in the water-fertilizer pond to divide the water-fertilizer pond into a water-fertilizer mixing chamber and an effluent chamber, and a floral pipe is arranged at the bottom of the water-fertilizer pond and is communicated with the water outlet pipe of the sand-removing warming pond. The water and fertilizer treatment system of drip irrigation under plastic film on rice is capable of increasing the irrigation water temperature of the drip irrigation under plastic film on rice by 2-5 DEG C.

Description

technical field [0001] The invention relates to a water and fertilizer treatment system for rice drip irrigation under mulch, is a water and fertilizer treatment system for an agricultural water-saving irrigation drip irrigation system, and belongs to the technical field of agricultural irrigation. Background technique [0002] In the existing drip irrigation technology, most of the sedimentation tanks used for water quality treatment are advection trapezoidal tanks, which occupy a large area, are expensive, require manual dredging, and are labor-intensive. Secondly, fertilization facilities are generally differential pressure fertilization tanks or fertilizer injection pumps, which have large head loss, high energy consumption, uneven fertilization, difficulty in continuous use, and low efficiency. The "sand discharge funnel" disclosed in Chinese patent CN1157358 includes a water inlet culvert, a funnel chamber, an overflow weir, a return channel, and a sand discharge botto...

AI Technical Summary

Problems solved by technology

The water flow rate in the trough-shaped channel described in this invention patent is fast, and the suspended sediment is difficult to settle, which cannot meet the water quality treatment requirements of drip irrigation

The common disadvantages of the above-mentioned existing technologies are that the suspended sediment cannot be settled, the water and fertilizer are difficult to synchronize or lack of fertilization devices, the irrigation water temperature cannot be adjusted, the growth and yield of rice are affected by low water temperature, and there are no primary water quality treatment facilities, etc.

Images