Nutritional compositions for plants and soils

A method of conditioning a selected soil, comprising:

• a) selecting a soil for which conditioning is sought;
• b) treating the soil with a liquid composition comprising an autothermal thermophilic aerobic bioreaction product from a liquid fraction of poultry manure slurry, the poultry manure slurry comprising at least about 80% by weight moisture content and subjected to an autothermal thermophilic aerobic bioreaction for at least about 1 day, wherein the autothermal thermophilic aerobic bioreaction product endogenously comprises at least one living species of plant growth promoting bacteria or fungi;
• c) measuring at least one parameter of conditioning in the treated soil, and
• d) comparing the at least one measured parameter of conditioning in the treated soil with an equivalent measurement in an equivalent soil not treated with the liquid composition, or before treatment with the liquid composition;
• wherein an improvement in the at least one measured parameter in the treated, as compared with the untreated soil, or with the soil prior to treatment, is indicative of conditioning the selected soil.