Field simulation test device for in-situ ecological improvement of barren soil

The invention discloses a field simulation test device for in-situ ecological improvement of barren soil. The device comprises an improver adding device, a conveying device and a plot test blocking device, the improver adding device comprises a mixing box body, an improver supply unit installed on one side of the top of the mixing box body, a water metering supply unit installed on the other sideof the top of the mixing box body, and stirring equipment located in the mixing box body, the conveying device comprises a submersible pump installed on one side of the bottom in the mixing box body,a conveying pipe connected with the submersible pump and a mixed liquid spray head installed at the tail end of the conveying pipe, and the mixed liquid spray head is located above the plot test blocking device, the plot test blocking device comprises a bottom partition plate and vertical partition plates formed around the bottom partition plate, and degraded soil of a plough layer to be tested isstored in the plot test bl