Biochar as a sorbent for contaminant management in soil, Highlights • this manuscript reviews recent findings published on biochar. • physical architecture and composition of biochars are critical for soil and water. Understanding phosphorus fertilizers : nitrogen, Organic phosphorus sources. organic p fertilizers have been used for centuries as the p source for crops. even with the advent of p fertilizer technology processes. The nature of phosphorus in soils : nitrogen : university, Phosphate is taken up by plants from soils, utilized by animals that consume plants, and returned to soils as organic residues decay in soils (figure 1)..


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