The present application relates to the technical field of agricultural biological
stimulant, in particular to a long-acting high-
dissolution-rate non-smashing
pollen enzymatic
polysaccharide aqueous solution and a preparation method thereof, the preparation method comprising: directly mixing and swelling the
bee pollen without smashing with water, and breaking the wall by high-speed homogenization or
colloid mill; under the condition of no buffer, the obtained suspension is subjected to constant-temperature enzymolysis by using a composite
enzyme, and the pH is periodically adjusted to keep stable; after the enzymolysis, the
enzyme is inactivated, and the
solid-liquid separation is performed to obtain a clear filtrate; the pH of the filtrate is adjusted to 4.5-5.0, and a compounded
preservative is added; finally, sterilization and sterile filling are performed. The present application simplifies the process, avoids the loss of active ingredients caused by smashing and the residue of buffer, and significantly prolongs the
shelf life of the product at
room temperature through a specific
preservative system. The prepared enzymatic solution has a high
dissolution rate of active ingredients, and after
dilution, it can be used for
crop foliar spraying, flushing
irrigation and
drip irrigation, and
seed treatment, and can effectively promote
crop growth and improve
stress resistance.