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首页> 外文期刊>Arabian journal of geosciences >Amelioration of soil acidity, Olsen-P, and phosphatase activity by manure- and peat-derived biochars in different acidic soils
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Amelioration of soil acidity, Olsen-P, and phosphatase activity by manure- and peat-derived biochars in different acidic soils

机译：用不同酸性土壤中的粪便和泥炭衍生的生物脉管的土壤酸度，奥尔森-P和磷酸酶活性的改善

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摘要

To increase soil productivity, ameliorate nutrient scarcity, and reduce metal toxicity in highly weathered acidic soils usually requires fertilizer and lime application. Effects of three biochars on soil acidity, Olsen-phosphorus (P), phosphatase activities, and heavy metal availability were investigated to test potential of these biochars as soil amendments in highly weathered acidic soils. Incubation experiments were conducted for 6 weeks with three acidic soils: Alfisol, Ultisol, and Oxisol. Three biochars were derived from chicken manure (CMB), pig manure (PMB), and peat moss (PB) at 400 A degrees C and applied at 1 or 2% (wt/wt). The addition of the three biochars increased Olsen-P in the three acidic soils in the following order: CMB PMB PB. Application of 2% CMB increased Olsen-P contents by 2.41-, 7.4-, and 1.78-fold in the Ultisol, Oxisol, and Alfisol compared with controls, respectively. Moreover, CMB increased the soil pH, electrical conductivity (EC), cation exchange capacity (CEC), and alkaline phosphatase activity, but reduced exchangeable acidity, acid phosphatase activity, and the availability of heavy metals-more effectively than PMB and PB. Addition of CMB increased soil pH by 0.90, 0.90, and 0.92 units for the Alfisol, Ultisol, and Oxisol, respectively, correspondingly followed by 0.80, 0.84, and 0.87 units for PMB and 0.15, 0.28, and 0.25 for PM. Changes in EC, CEC, and exchangeable acidity followed the same order for the three soils: CMB PMB PB. The results suggested that the magnitude of changes in soil properties and Olsen-P contents depended on biochar type and application rate. Application of CMB increased nutrient availability and reduced the availability of heavy metals more than other amendments. Due to higher pH, EC, and CEC, and greater concentrations of carbon, nitrogen, and exchangeable calcium and potassium, incorporation of CMB should be a better cost-effective method to correct soil acidity and improve fertility
机译：为了提高土壤生产率，改善养分稀缺性，降低高度风化的酸性土壤中的金属毒性通常需要肥料和石灰应用。研究了三种生物脉对土壤酸度，奥尔森 - 磷（P），磷酸酶活性和重金属可用性的影响，以试验这些生物脉的潜力作为高度风化的酸性土壤的土壤修正。用三个酸性土壤进行孵育实验6周：丙醇，Ultisol和oxisol。在400℃下衍生自鸡粪（CMB），猪粪（PMB），猪粪（PMB）和泥炭藓（PB）并以1或2％（WT / WT）衍生出三个生物脉。在以下顺序中添加三个生物脉中的三种生物脉中的Olsen-p：CMB＆GT; PMB＆ PB。将2％CMB的蛋白-P含量施用在Ultisol，Oxisol和Alfisol中的2.41-，7.4-和1.78倍。与对照组分别相比。此外，CMB增加了土壤pH，导电性（EC），阳离子交换能力（CEC）和碱性磷酸酶活性，但可降低可交换的酸度，酸性磷酸酶活性，并且比PMB和Pb更有效地提供重金属的可用性。将CMB加入pH值增加0.90,0.90和0.92个单位，分别为Alfisol，Ultisol和Oxisol，对应于PMB和0.15,0.28和0.25的0.80,0.84和0.87单位。 EC，CEC和可交换酸度的变化跟随三个土壤的顺序：CMB＆GT; PMB＆ PB。结果表明，土壤性质和奥尔森-P内容物的变化幅度依赖于生物炭型和施用率。基于其他修正案，CMB增加了营养可用性，减少了重金属的可用性。由于pH，EC和CEC较高，且浓度的碳，氮和可交换钙和钾，CMB的掺入应该是纠正土壤酸度并改善生育率的更好成本效益的方法

著录项

  • 来源
    《Arabian journal of geosciences》 |2018年第11期|共15页
  • 作者

    Kamran Muhammad Aqeel; Jiang Jun; Li Jiu-yu; Shi Ren-yong; Mehmood Khalid; Abdulaha-Al Baquy M.; Xu Ren-kou;

  • 作者单位

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

    Chinese Acad Sci Inst Soil Sci State Key Lab Soil &

    Sustainable Agr POB 821 Nanjing Jiangsu Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 关键词

    Olsen-P; Soil acidity amelioration; Phosphatase activities; Biochar; Acidic soil; Heavy metals;

    机译：奥尔森-P;土壤酸度改善;磷酸酶活性;生物炭;酸性土壤;重金属;

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