The invention relates to the technical field of suspending agent preparation, and discloses a macroelement water-soluble
fertilizer suspending agent, which comprises macroelements, medium trace elements, a suspending agent and an auxiliary agent, and a preparation method of the macroelement water-soluble
fertilizer suspending agent comprises the following steps of: preparing the macroelement water-soluble
fertilizer suspending agent; the preparation method comprises the following steps: S1,
raw material pretreatment, S2, macroelement
dissolution, S3, medium
trace element addition, S4, suspending agent and auxiliary agent addition, S5, fine treatment, and S6, packaging and storage, the stability of the suspending agent is significantly enhanced: a more stable suspension
system is constructed by precisely adjusting the ratio of
xanthan gum to the
sodium carboxymethyl cellulose suspending agent, and the unique component proportion enables the fertilizer to have a better effect after the fertilizer is stored for 6 months. The
nutrient precipitation rate can still be kept below 5%, the uniformity of the fertilizer in the storage and transportation process is effectively guaranteed, farmers do not need to worry about uneven fertilization caused by
nutrient precipitation in the application process, it is guaranteed that crops can continuously and evenly absorb nutrients, and healthy growth is promoted.