The present invention discloses a systematic method for phosphorus sustainability, sand soilization and odor removal utilizing the phosphorus-unlocking and odor removing green chemistry of a surface-oxygenated biochar composition made through ozonization in combination with sonication. Surface-oxygenated biochar compositions and sonication-ozonization methods create advanced hydrophilic biochar materials having higher cation exchange capacity, optimized pH, improved wettability, and toxin free components. These sonicated and ozonized biochar compositions are used as filtration materials for clean water and air, as phosphorus solubilizing reagents to mix with phosphate rock materials to make a slow-releasing phosphate fertilizer, as biochar soil additives to help solubilize phosphorus and reduce phosphorus fertilizer additions required to achieve desired soil phosphorus activity, crop uptake, and yield goals, as sand soilization reagents by utilizing their liquid gel-forming activity in the spaces among sand particles to retain water and nutrients and hold the sand particles together, as plant growth stimulants by using the humic acids-like surface-oxygenated biochar substances at a proper ppm concentration and as carbon sequestration agents to help control climate change for energy and environmental sustainability on Earth.

The present invention discloses a systematic method for phosphorus sustainability, sand soilization and odor removal utilizing the phosphorus-unlocking and odor removing green chemistry of a surface-oxygenated biochar composition made through ozonization in combination with sonication. Surface-oxygenated biochar compositions and sonication-ozonization methods create advanced hydrophilic biochar materials having higher cation exchange capacity, optimized pH, improved wettability, and toxin free components. These sonicated and ozonized biochar compositions are used as filtration materials for clean water and air, as phosphorus solubilizing reagents to mix with phosphate rock materials to make a slow-releasing phosphate fertilizer, as biochar soil additives to help solubilize phosphorus and reduce phosphorus fertilizer additions required to achieve desired soil phosphorus activity, crop uptake, and yield goals, as sand soilization reagents by utilizing their liquid gel-forming activity in the spaces among sand particles to retain water and nutrients and hold the sand particles together, as plant growth stimulants by using the humic acids-like surface-oxygenated biochar substances at a proper ppm concentration and as carbon sequestration agents to help control climate change for energy and environmental sustainability on Earth.

An agricultural adjuvant includes microfibrillated cellulose, a dispersant or wetting agent, in a liquid carrier that has been subjected to shear conditions. The resultant adjuvant displays useful rheological structure and the adjuvant is added to agricultural formulations to stabilize and impart useful rheology to the formulations.

Disclosed herein are superabsorbent hydrogels formed using okara particles and polymeric chains. The hydrogel contains crosslinks, which are provided by crosslinking groups between the polymeric chains or by a plurality of polymer chains being bonded to each okara particle (with each of these chains being bonded to at least one further okara particle too). The resulting superabsorbent hydrogels are useful in aiding plant growth, nutrition and hydration, and may be mixed with soil to form a composite material for such purposes.

Disclosed herein are superabsorbent hydrogels formed using okara particles and polymeric chains. The hydrogel contains crosslinks, which are provided by crosslinking groups between the polymeric chains or by a plurality of polymer chains being bonded to each okara particle (with each of these chains being bonded to at least one further okara particle too). The resulting superabsorbent hydrogels are useful in aiding plant growth, nutrition and hydration, and may be mixed with soil to form a composite material for such purposes.

Described herein, inter alia, is a composition comprising an agricultural agent in particulate form and a microfibrillated cellulose, and methods of making and using the aforementioned composition.

Described herein, inter alia, is a concentrate including a high ionic strength liquid and a microfibrillated cellulose, and methods of making the same.

Described herein, inter alia, is a concentrate including a high ionic strength liquid and a microfibrillated cellulose, and methods of making the same.

The invention provides preparation of a selenium-water-soluble high-molecular polysaccharide hydrogel and use thereof. The preparation method includes: (1) water solution of polysaccharide and seleno-compound was prepared by heating the mixture with stirring; and (2) the solution was cooled with standing within shaped container to obtain the selenium-polysaccharide composite hydrogel. Plant seeds are sown on the surface of the composite hydrogel and cultivated to obtain selenium-rich plants. Shape-controllable hydrogel could be prepared by recycled hydrogel through high-temperature dissolution followed with cooling to realize the effective utilization of selenium in the hydrogel. Compared with the traditional selenium enrichment method, current method showed advances in prevent of selenium pollution, which normally caused by the application of selenium fertilizers.

The invention provides preparation of a selenium-water-soluble high-molecular polysaccharide hydrogel and use thereof. The preparation method includes: (1) water solution of polysaccharide and seleno-compound was prepared by heating the mixture with stirring; and (2) the solution was cooled with standing within shaped container to obtain the selenium-polysaccharide composite hydrogel. Plant seeds are sown on the surface of the composite hydrogel and cultivated to obtain selenium-rich plants. Shape-controllable hydrogel could be prepared by recycled hydrogel through high-temperature dissolution followed with cooling to realize the effective utilization of selenium in the hydrogel. Compared with the traditional selenium enrichment method, current method showed advances in prevent of selenium pollution, which normally caused by the application of selenium fertilizers.