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首页> 外文期刊>土壤圈（英文版） >Benefits of Biochars and NPK Fertilizers for Soil Quality and Growth of Cowpea (Vigna unguiculata L.Walp.) in an Acid Arenosol
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Benefits of Biochars and NPK Fertilizers for Soil Quality and Growth of Cowpea (Vigna unguiculata L.Walp.) in an Acid Arenosol

机译：生物炭和NPK肥料对酸性槟榔中Soil豆（Vigna unguiculata L.Walp。）土壤质量和生长的益处

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摘要

Fertilization is required for optimum plant growth,particularly in unfertile soils,while optimizing nutrient use efficiency is an alternative to reduce inorganic fertilizer needs and reduce environmental problems caused by nutrient leaching.This study investigated soil properties and cowpea yield responses to biochars (BCs) made from different feedstocks,baby corn peel biochar (BC1),branches of mango tree biochar (BC2),and rice husk biochar (BC3),applied in combination with nitrogen-phosphorus-potassium (NPK) fertilizers.The experiment was conducted in a greenhouse,using an acid sandy soil (Arenosol) that was submitted for 70 d to the following eight treatments:i) control;ii) full dose of NPK (a commercial compound fertilizer (12-24-12 of N-P2Os-K2O) + urea (46％ N));iii) BC1 + half dose of NPK;iv) BC1 + full dose of NPK;v) BC2 + half dose of NPK;vi) BC2 + full dose of NPK;vii) BC3 + half dose of NPK;and viii) BC3 + full dose of NPK.All biochars were applied at a rate of 0.9％ (weight/weight),and each type of biochar was combined with half and full doses of NPK fertilizers.Soil pH increased significantly (P ＜ 0.05) in treatments with BC1 and BC2,while cation exchange capacity (CEC) and available P were higher in the treatments with BC1;BC1 and BC2 also induced higher activity of enzymes related to the P cycle and higher cowpea yield.Similar soil properties and cowpea yield parameters were obtained with the full and half doses of NPK fertilizers for each type of biochar used.In conclusion,biochars in the combination with NPK fertilizers improved soil chemistry and enzymatic activities,allowing reduced fertilizer application and food production costs in the acid soil studied.
机译：为了使植物最佳生长（特别是在不肥沃的土壤中）需要施肥，而优化养分利用效率是减少无机肥料需求并减少养分淋失引起的环境问题的替代方法。这项研究调查了土壤特性和cow豆产量对生物炭（BCs）的响应由不同的原料，婴儿玉米皮生物炭（BC1），芒果树生物炭（BC2）和稻壳生物炭（BC3）结合氮磷钾（NPK）肥料施用。该实验在温室中进行，使用酸性沙土（Arenosol），并经过以下八种处理方法处理了70天：i）对照; ii）全剂量NPK（商业复合肥料（N-P2Os-K2O的12-24-12）+尿素（46％N））; iii）BC1 + NPK的一半剂量; iv）BC1 + NPK的全部剂量; v）BC2 + NPK的一半剂量; vi）BC2 + NPK的全部剂量; vii）BC3 +半剂量viii）BC3 +全剂量的NPK。所有生物炭的施用量为0.9％（体重/我们右），每种类型的生物炭都与半剂量和全剂量氮磷钾肥料混合使用。BC1和BC2处理的土壤pH值显着增加（P ＜0.05），而阳离子交换能力（CEC）和有效磷在处理中较高BC1，BC1和BC2与BC1，BC1和BC2的结合也诱导了与P循环相关的酶的较高活性，并提高了cow豆的产量。对于每种生物炭类型，使用全剂量和半剂量的NPK肥料可获得相同的土壤特性和cow豆产量参数。将生物炭与NPK肥料配合使用可改善土壤化学性质和酶活性，从而减少研究的酸性土壤中的肥料施用量和食品生产成本。

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  • 来源
    《土壤圈（英文版）》 |2019年第3期|311-333|共23页
  • 作者

    Rogério Borguete Alves RAFAEL; Maria Luisa FERN(A)NDEZ-MARCOS; Stefania COCCO; Maria Letizia RUELLO; Flavio FORNASIER; Giuseppe CORTI;

  • 作者单位

    Department of Rural Engineering, Faculty of Agronomy and Forestry Engineering, Universidade Eduardo Mondlane, Maputo 257 Mozambique;

    Department of Agriculture, Food and Environmental Sciences, Università Politecnica delle Marche, Ancona 60131 Italy;

    Department of Soil Science and Agricultural Chemistry, Universidad de Santiago de Compostela, Lugo 27002 Spain;

    Instituto de Biodiversidade Agraria e Desenvolvimento Rural, Universidad de Santiago de Compostela, Lugo 27002 Spain;

    Department of Agriculture, Food and Environmental Sciences, Università Politecnica delle Marche, Ancona 60131 Italy;

    Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, Ancona 60131 Italy;

    Centro di Ricerca Viticoltura ed Enologia, Gorizia 34170 Italy;

    Department of Agriculture, Food and Environmental Sciences, Università Politecnica delle Marche, Ancona 60131 Italy;

  • 收录信息 中国科学引文数据库(CSCD);
  • 原文格式 PDF
  • 正文语种 eng
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