Disclosed herein are methods of accelerating root growth in a plant, the method comprising applying to the plant root a composition comprising a) a mixture of proteins and polypeptides, and b) a surfactant, whereby root growth is accelerated as compared to an untreated plant. Also disclosed herein are methods of improving the foliar uptake of a biologically active compound by a plant, the method comprising applying to the plant foliage a composition comprising a) a mixture of proteins and polypeptides, and b) a surfactant, whereby root growth is accelerated as compared to an untreated plant.