Fertilizer-reducing synergistic fertilizer composition and application thereof

The invention relates to a fertilizer-reducing synergistic fertilizer composition and application thereof, and relates to the technical field of fertilizers, the fertilizer-reducing synergistic fertilizer composition comprises: a first component: sodium citrate; and the second component is a compound shown in a formula (I) or a salt of the compound shown in the formula (I). The invention provides a fertilizer composition capable of reducing fertilizer consumption and improving fertilizer utilization rate for the first time by using a compound shown in a formula (I) and sodium citrate in a matching manner, is particularly suitable for planting ligusticum wallichii, can improve the yield and quality of the ligusticum wallichii, and has wide actual use value. 本发明涉及一种降肥增效肥料组合物及其应用，涉及肥料技术领域，所述降肥增效肥料组合物包括：第一组分：柠檬酸钠；第二组分：式(I)所示化合物，或式(I)所示化合物的盐。本发明提供了一种降肥增效肥料组合物及其应用，本发明首次发现将式(I)所示化合物和柠檬酸钠搭配使用，能够降低肥料使用量，提高肥料利用率，尤其适用于川芎的种植，可提高川芎的产量及品质，具有广泛的实际使用价值。