Scholarlink

<p>Agriculture is an energy-intensive sector contributing significantly to greenhousegas emissions (GHGE). Implementing sustainable agronomic practices, such as biostimulant, can offer a promising pathway to enhance energy efficiency and reduce environmental burdens. This study explores the novel formulation of a biostimulant derived from stinging nettle and weed biomass, evaluating its efficacy in improving energy efficiency, carbon footprint reduction, and economic viability in organic and conventional mustard (<i>Brassica juncea</i>) cultivation. A two-year field experiment (2020–21 and 2021–22) was conducted at Pantnagar, India, using a factorial randomized block design. Three formulations, stinging nettle-based (KJ1), common weed-based (KJ2), and a 50:50 blend of both (KJ3), applied at four different rates (500, 1000, 1500, and 2000&#xa0;L ha<sup>⁻1</sup>). A treatment with recommended doses of fertilizer (RDF) as control. Among treatments, KJ1D3 demonstrated superior agronomic and environmental benefits, yielding the highest grain (1572.4&#xa0;kg ha<sup>⁻1</sup>) and stalk biomass (4700.9&#xa0;kg ha⁻1), comparable to RDF. KJ1D3 also exhibited optimal energy metrics, with the highest net energy gain (89,605&#xa0;MJ ha<sup>⁻1</sup>), energy efficiency (9.19), and lowest energy input per unit yield (1.68&#xa0;MJ kg<sup>⁻1</sup>). Similarly, lower climate impact intensity metrics (CIIM<sub>energy,</sub> CIIM<sub>economics</sub>)was observed with biostimulant treatments. Life cycle assessment showed the lowest carbon footprint under KJ1D3 (0.059&#xa0;kg CO₂-eq kg<sup>⁻1</sup> grain), alongside the highest sustainability index (6.51). Economically, it yielded the highest net profit (USD 481.2&#xa0;ha⁻1) and benefit-cost ratio (1.89). These results underscore the potential of biostimulant in promoting sustainable and energy-efficient agriculture, aligning with SDGs 2, 7, 12, and 13. Additionally, the study offers new insights into the use of indigenous plant extracts as nutrient supplements within organic farming systems.</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

Biostimulant-based nutrient management for energy-efficient and low-carbon mustard cultivation: a life cycle assessment approach for sustainable development

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年4月15日

查看全文
  • Banavath Mahesh Naik,
  • Sunita T. Pandey,
  • Amit Bhatnagar,
  • Subhash Chandra,
  • Rajeew Kumar,
  • M. Karthika,
  • K. Srikanth Reddy,
  • Biswajit Pramanick

摘要

Agriculture is an energy-intensive sector contributing significantly to greenhousegas emissions (GHGE). Implementing sustainable agronomic practices, such as biostimulant, can offer a promising pathway to enhance energy efficiency and reduce environmental burdens. This study explores the novel formulation of a biostimulant derived from stinging nettle and weed biomass, evaluating its efficacy in improving energy efficiency, carbon footprint reduction, and economic viability in organic and conventional mustard (Brassica juncea) cultivation. A two-year field experiment (2020–21 and 2021–22) was conducted at Pantnagar, India, using a factorial randomized block design. Three formulations, stinging nettle-based (KJ1), common weed-based (KJ2), and a 50:50 blend of both (KJ3), applied at four different rates (500, 1000, 1500, and 2000 L ha⁻1). A treatment with recommended doses of fertilizer (RDF) as control. Among treatments, KJ1D3 demonstrated superior agronomic and environmental benefits, yielding the highest grain (1572.4 kg ha⁻1) and stalk biomass (4700.9 kg ha⁻1), comparable to RDF. KJ1D3 also exhibited optimal energy metrics, with the highest net energy gain (89,605 MJ ha⁻1), energy efficiency (9.19), and lowest energy input per unit yield (1.68 MJ kg⁻1). Similarly, lower climate impact intensity metrics (CIIMenergy, CIIMeconomics)was observed with biostimulant treatments. Life cycle assessment showed the lowest carbon footprint under KJ1D3 (0.059 kg CO₂-eq kg⁻1 grain), alongside the highest sustainability index (6.51). Economically, it yielded the highest net profit (USD 481.2 ha⁻1) and benefit-cost ratio (1.89). These results underscore the potential of biostimulant in promoting sustainable and energy-efficient agriculture, aligning with SDGs 2, 7, 12, and 13. Additionally, the study offers new insights into the use of indigenous plant extracts as nutrient supplements within organic farming systems.