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首页> 外文期刊>Chemosphere >Application of co-composted farm manure and biochar increased the wheat growth and decreased cadmium accumulation in plants under different water regimes
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Application of co-composted farm manure and biochar increased the wheat growth and decreased cadmium accumulation in plants under different water regimes

机译：在不同的水分状况下，混合施用农家肥和生物炭可促进小麦生长，并减少植物中镉的积累

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摘要

Toxic trace element pollution in the agricultural soils may negatively affect the plant growth. This study mainly focused on investigating the impact of co-composted biochar and farmyard manure (FYM) on wheat growth and cadmium (Cd) accumulation by plants. The different ratios of FYM and biochar were composted for two and half months and mixed in Cd-contaminated soil at a rate of 2% w/w of each treatment. After this, wheat seeds were sown in the soil at normal soil moisture (70% of soil water holding capacity (WHC)) level. After 50-day of sowing, both normal and drought stress (35% WHC) levels were applied and plants were harvested at 122 days after seed sowing. The results depicted that Cd and drought alone depressed the wheat growth, elevated the oxidative stress and Cd contents in wheat tissues. However, application of co-composted treatments increased the growth, yield, chlorophyll contents and minimized the oxidative stress in the leaves along with the reduction of Cd concentrations in wheat tissues mainly in grains. The amendments enhanced the post-harvest soil pH and minimized the soil bioavailable Cd. The increasing ratios of biochar in the compost were most effective in improving the growth and alleviating Cd toxicity and its concentration in grains. Overall, co-composted biochar and FYM might be suitable for reducing Cd in grains, but the field studies in different soils and plants are required to further explore the effects of these amendments before final recommendations. (C) 2020 Elsevier Ltd. All rights reserved.
机译：农业土壤中的有毒微量元素污染可能会对植物生长产生负面影响。这项研究主要侧重于研究共混生物炭和农家肥（FYM）对植物生长小麦和镉（Cd）的影响。将不同比例的FYM和生物炭堆肥两个半月，并以每种处理的2％w / w的比率混合在Cd污染的土壤中。之后，将小麦种子播种到土壤中，其水分含量正常（土壤持水量（WHC）的70％）。播种50天后，施用正常和干旱胁迫（35％WHC）水平，并在种子播种后122天收获植物。结果表明，仅镉和干旱抑制了小麦的生长，提高了小麦组织中的氧化胁迫和镉含量。然而，联合处理的应用增加了小麦组织中主要是谷物中镉的含量，从而增加了叶片的生长，产量，叶绿素含量，并使叶片的氧化胁迫最小化。修正案提高了收获后土壤的pH值，并使土壤中可利用的Cd最小化。堆肥中生物炭比例的增加最有效地改善了生长并减轻了Cd毒性及其在谷物中的浓度。总体而言，混合使用的生物碳和FYM可能适合减少谷物中的Cd，但是在最终建议之前，需要在不同土壤和植物中进行田间研究，以进一步探索这些修订的影响。 （C）2020 Elsevier Ltd.保留所有权利。

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  • 来源
    《Chemosphere》 |2020年第5期|125809.1-125809.10|共10页
  • 作者

  • 作者单位

    Govt Coll Univ Dept Environm Sci & Engn Allama Iqbal Rd Faisalabad 38000 Pakistan;

    Univ Agr Faisalabad Inst Soil & Environm Sci Faisalabad Pakistan;

    Govt Coll Univ Dept Bioinformat & Biotechnol Faisalabad Pakistan;

    Bahauddin Zakariya Univ Dept Soil Sci Fac Agr Sci & Technol Multan Pakistan;

    King Abdulaziz Univ Fac Sci Dept Biol Sci Jeddah 21589 Saudi Arabia;

    Govt Coll Univ Dept Environm Sci & Engn Allama Iqbal Rd Faisalabad 38000 Pakistan|China Med Univ Dept Biol Sci & Technol Taichung Taiwan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biochar; Farmyard manure; Cadmium; Composting; Water stress;

    机译：生物炭农家肥;镉;堆肥;水分胁迫;

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