Abstract: Novel mixed agricultural compositions, and methods for their use are disclosed. The agricultural compositions are prepared by a process comprising mixing together a carrier, such as a solid fertilizer or liquid solvent, and a carbohydrate-based surfactant, such as AGRIMUL PG 2069 (Henkel, Dusseldorf, Germany). For example, 8 quarts of surfactant were mixed with one ton of a solid fertilizer. The carrier material can further comprise biologically active agents such as herbicides, insecticides, chemosterilants, nematicides, and fungicides. These mixed agricultural compositions are used to promote the growth of plants in soil and enhance soil bioremediation.