Seedling raising substrate and method for preparing the same

Abstract

The present application relates to a kind of seedling substrate and its preparation method, it relates to crop planting technical field, a kind of seedling substrate, including hydrogel microspheres and composite substrate component, the composite substrate component includes: peat, vermiculite, perlite, humic acid, zeolite powder, slow-release fertilizer particle;The composition of the hydrogel microspheres includes: soybean protein isolate, sodium carboxymethyl cellulose, naphthalene acetic acid, xanthan gum, genipin, chitosan, calcium chloride, bacillus subtilis bacterial agent;Its preparation process includes hydrogel microspheres preparation, premixing, initial mixing, final mixing step;The seedling substrate and its preparation method protected in the present application, utilize the porous loose structure formed by hydrogel microspheres, this porous structure makes microsphere only slightly expand after absorbing water, while guaranteeing water-retention capacity, guaranteeing ventilation performance, provide stable microenvironment for seedling growth, further improve crop seedling quality.