A kind of salt washing device and method in dark tube

Abstract

The invention discloses a salt washing device and method for a hidden tube, belonging to the field of soil improvement. The device includes: a T-shaped tee, a hidden pipe connected to the side port of the T-shaped tee, an outlet pipe connected to the lower port of the T-shaped tee, and a transparent transparent tube with an adjustable length that is detachably connected to the upper port of the T-shaped tee. The vertical pipe is used to block the water outlet pipe or the plugging piece of the upper port of the T-shaped tee. The device is used to wash salt in the saline-alkali land, and the water level in the saline-alkali land is monitored and controlled by setting a transparent standpipe; and the time for soaking the soil in the saline-alkali land in irrigation water is controllable by setting a blocking member. All of the above can strengthen the flow of water from the large pores of the soil to the small pores, which can fully precipitate the salt from the soil, improve the efficiency of salt washing, and achieve an efficient and uniform salt washing effect. The water consumption of salt is reduced, and the loss of nutrients such as nitrogen and phosphorus is also reduced accordingly.

Description

technical field [0001] The invention relates to the field of soil improvement, in particular to a salt washing device and method for a hidden pipe. Background technique [0002] my country is one of the countries with serious saline-alkali disasters, and harnessing and utilizing saline-alkali land is an important measure to ensure the growth of my country's grain production. In the process of harnessing and utilizing saline-alkali land, it is necessary to reduce the salt content of saline-alkali land by washing salt. Therefore, it is very necessary to provide a method for washing salt. [0003] The prior art provides such a method for washing salt in saline-alkali land: select the flushing plot, excavate the left open ditch and the right open ditch on both sides of the flushing plot, and set up an irrigation channel in the middle of the flushing plot; divide the left flushing plot and Divide the right flushing plot into at least two furrows with the same width; inject wate...

AI Technical Summary

Problems solved by technology

[0005] The existing technology adopts the water flushing method, the water flow is fast, the irrigation water basically flows through the large pores, and the small pores rarely have irrigation water flowing through, which is easy to cause uneven salt washing, low salt washing efficiency, and large water consumption for salt washing , and lead to the loss of nutrients such as nitrogen and phosphorus in the soil with a large amount of drainage

Images