1 Subjects: “...feed physical form...”

2 Subjects: “...organic fertilizer...”

3 Subjects: “... and farming::TVF Sustainable agriculture...”

4 Subjects: “...organic farming...”

5 Subjects: “...ocean warming...”

6 “...Society is currently confronted with the continuing environmental problems of global warming...”

7 “... of organic matter in the soil. Humic substances are heterogeneous polymers formed during the process of decay...”