Water and fertilizer application proportioning device

The utility model discloses a water and fertilizer application proportioning device which comprises a proportioning tank, a solid proportioning mechanism arranged on one side of the top end of the proportioning tank, a liquid proportioning mechanism positioned on one side of the solid proportioning mechanism arranged on the proportioning tank, supporting mechanisms arranged on two sides of the proportioning tank, and a water and fertilizer leading-in mechanism arranged at the bottom end of the proportioning tank. By arranging the solid proportioning mechanism and the liquid proportioning mechanism, the function of quantitatively proportioning a solid fertilizer and a liquid fertilizer is realized, the proportion of water and fertilizer during water and fertilizer application is convenient to control, the practical effect of the water and fertilizer is improved, and the problem that in the prior art, water and fertilizer are generally injected into an irrigation water conveying pipeline during water and fertil