Scholarlink

<p>The increasing volume of sewage-sludge (SS) and fly ash (FA), driven by growing population, urbanisation, and industrialisation, necessitates a sustainable approach to their management. The study aimed to investigate the plants’ response and metal content of <i>Abelmoschus esculentus</i> L. cv. Kashi Kranti (VRO-22<b>)</b>, grown under different SLASH (SS + FA) amendments in soil. A field experiment was conducted using SS and FA in the following ratios, i.e. 4:1 (SLASH A), 4:2 (SLASH B), and 4:3 (SLASH C), respectively, followed by mixing them in 0, 20, 40, and 60% (w/w) with soil. SLASH amendments enhanced organic matter and nutrient content in the soil compared to the control. Contents of manganese (Mn), zinc (Zn), iron (Fe), copper (Cu), nickel (Ni), cadmium (Cd), chromium (Cr), and lead (Pb) in SLASH amended soils remained within permissible limits; however, the levels of Mn, Zn, Cu, and Cr exceeded the plant’s required concentrations. The total biomass of the plant and fruit-yield were enhanced under different SLASH amendments, with the maximum increase found under 60% SLASH A (381% and 1150%, respectively) in the soil. Enzymatic and non-enzymatic antioxidants in the plant grown in SLASH-ameliorated soil were significantly increased over the control. Principal component analysis (PCA) analysis revealed that biomass, yield, and antioxidant production were strongly influenced by the contents of Ni, Fe, Cr, Zn, Cd, and Mn in the plant. Importantly, the metal content in fruits under all SLASH treatments remained within FAO/WHO safety limits. Therefore, the study recommends utilising 60% SLASH A as a soil amendment for cultivating <i>A. esculentus</i>, ensuring enhanced fruit yield without risk of metal contamination.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigating the growth and yield responses of Abelmoschus esculentus L. cv. Kashi Kranti (VRO-22) grown under the co-application of sewage-sludge and fly ash in soil

  • 期刊论文

  • 发表日期：

    2025年11月17日

查看全文
  • Rajeev Pratap Singh,
  • Meenu Gautam,
  • Bhavisha Sharma,
  • Richa Kothari,
  • Anita Singh

摘要

The increasing volume of sewage-sludge (SS) and fly ash (FA), driven by growing population, urbanisation, and industrialisation, necessitates a sustainable approach to their management. The study aimed to investigate the plants’ response and metal content of Abelmoschus esculentus L. cv. Kashi Kranti (VRO-22), grown under different SLASH (SS + FA) amendments in soil. A field experiment was conducted using SS and FA in the following ratios, i.e. 4:1 (SLASH A), 4:2 (SLASH B), and 4:3 (SLASH C), respectively, followed by mixing them in 0, 20, 40, and 60% (w/w) with soil. SLASH amendments enhanced organic matter and nutrient content in the soil compared to the control. Contents of manganese (Mn), zinc (Zn), iron (Fe), copper (Cu), nickel (Ni), cadmium (Cd), chromium (Cr), and lead (Pb) in SLASH amended soils remained within permissible limits; however, the levels of Mn, Zn, Cu, and Cr exceeded the plant’s required concentrations. The total biomass of the plant and fruit-yield were enhanced under different SLASH amendments, with the maximum increase found under 60% SLASH A (381% and 1150%, respectively) in the soil. Enzymatic and non-enzymatic antioxidants in the plant grown in SLASH-ameliorated soil were significantly increased over the control. Principal component analysis (PCA) analysis revealed that biomass, yield, and antioxidant production were strongly influenced by the contents of Ni, Fe, Cr, Zn, Cd, and Mn in the plant. Importantly, the metal content in fruits under all SLASH treatments remained within FAO/WHO safety limits. Therefore, the study recommends utilising 60% SLASH A as a soil amendment for cultivating A. esculentus, ensuring enhanced fruit yield without risk of metal contamination.