Preparation method for farmland snow-melting agent

The invention provides a preparation method for a farmland snow-melting agent, relates to a preparation method of the snow-melting agent, which aims to solve the problem that the snow-melting agent prepared in the prior art is not applicable to being used as the farmland snow-melting agent. The method comprises the following steps: 1. uniformly mixing expanded graphite and potassium chloride powder to obtain a primary mixture; 2. preparing bentonite dry powder: drying, crushing and sieving to obtain the bentonite dry powder; and 3. finally mixing: adding Ende gasifier ash and the bentonite dry powder into the primary mixture to be mixed uniformly to obtain the farmland snow-melting agent. The preparation method for the farmland snow-melting agent has the advantages that the prepared farmland snow-melting agent can be used as the farmland snow-melting agent to realize the aim of removing snow; the prepared farmland snow-melting agent can be used for reducing the loss of potassium chloride when being used, and