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论文题目: Effects of boron waste (BW) addition on the bioavailability of boron and magnesium during swine manure composting
英文论文题目: Effects of boron waste (BW) addition on the bioavailability of boron and magnesium during swine manure composting
第一作者: 王莉霞
英文第一作者: Wang, L. X.
联系作者: 王莉霞
英文联系作者: Wang, L. X.
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发表年度: 2016
卷: 101
期:
页码: 54-60
摘要: The improper disposal of boron waste (BW) would bring much trouble for environment, at the same time, BW with a higher content of boron (B) and magnesium (Mg) could be used as a fertilizer in B and Mg deficient soils. Therefore this study recommended a novel disposal method of BW by composting, and investigated the influence of BW additions (at rates of 2.5%, 5.0% and 7.5%, dry weight basis) on the bioavailability of B and Mg during aerobic swine manure composting. Results indicated that additions of BW increased the content of both B and Mg in different fractions. The proportion of B fractions in the final composted material supplemented with BW were: nonspecifically adsorbed B (NSA-B) > B occluded in Mn oxyhydroxides (MOH-B) > specifically adsorbed B (SPA-B) > residual B (RES-B) > B occluded in crystalline Fe and Al oxides (CRO-B) > B occluded in amorphous Fe and Al oxides (AMO-B). The addition of BW improved the bioavailability of B to plants and reduced the proportion of Mg in the exchangeable fraction. Spearman correlation showed that B and Mg bioavailability was associated with fulvic acid (FA; P < 0.05). This study suggested that the humification process changed bioavailable forms of B and Mg during co-composting.
英文摘要: The improper disposal of boron waste (BW) would bring much trouble for environment, at the same time, BW with a higher content of boron (B) and magnesium (Mg) could be used as a fertilizer in B and Mg deficient soils. Therefore this study recommended a novel disposal method of BW by composting, and investigated the influence of BW additions (at rates of 2.5%, 5.0% and 7.5%, dry weight basis) on the bioavailability of B and Mg during aerobic swine manure composting. Results indicated that additions of BW increased the content of both B and Mg in different fractions. The proportion of B fractions in the final composted material supplemented with BW were: nonspecifically adsorbed B (NSA-B) > B occluded in Mn oxyhydroxides (MOH-B) > specifically adsorbed B (SPA-B) > residual B (RES-B) > B occluded in crystalline Fe and Al oxides (CRO-B) > B occluded in amorphous Fe and Al oxides (AMO-B). The addition of BW improved the bioavailability of B to plants and reduced the proportion of Mg in the exchangeable fraction. Spearman correlation showed that B and Mg bioavailability was associated with fulvic acid (FA; P < 0.05). This study suggested that the humification process changed bioavailable forms of B and Mg during co-composting.
刊物名称: Process Safety and Environmental Protection
英文刊物名称: Process Safety and Environmental Protection
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英文参与作者: Ou, Y., Lv, D. A., Yan, B. X., Zhai, L. M., Guan, J. N., Li, H., Irshad, M.