The invention discloses a high-efficiency
saline-
alkali soil improvement device, and belongs to the technical field of
saline-
alkali soil improvement, the high-efficiency
saline-
alkali soil improvement device comprises a bottom plate and coulters, the bottom plate is provided with rollers, the bottom plate is fixedly provided with a mounting plate, the mounting plate is rotatably provided with a crushing roller, and the crushing roller is uniformly and fixedly provided with crushing blades; and a belt is mounted between a rotating shaft of the crushing roller and a rotating shaft of the roller. According to the scheme, through cooperation of the elastic
cushion and the plugging block, the elastic
cushion is driven to stretch out and draw back in a reciprocating mode when the improvement device moves, then
fertilizer liquid is driven to be applied through the
fertilizer applying
pipe in the reciprocating stretching out and draw back process of the elastic
cushion, and the elastic cushion stops shaking when the improvement device stops moving, so that
fertilizer applying can be stopped, and fertilizer accumulation is avoided; when the speed of the improvement device is too high, the plugging block can be driven to move, and the cross sectional area of the communication part of the communication groove and the fertilization cavity is increased, so that the fertilization amount is increased, and the saline-alkali soil improvement effect is improved.