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<p>Effectively managing rice straw is crucial for sustainable agriculture and environmental conservation. Additionally, the synthetically designed microbial consortia can be desirable for decomposing agricultural-based residues. This study explores the on-field composting of 1 ton of rice straw using the novel SPRERITECH consortia, a microbial formulation encapsulating bacterial and fungal strains via synthetic design. The application of this technique significantly reduced the composting duration by 50%, yielding mature compost within 25 days. The final compost maintained a safe moisture content of 12%. It exhibited an optimal NPK composition of <i>N</i> ≈ 1.5%, <i>P</i> ≈ 0.75%, and K ≈ 0.84% with a C: N ratio of approximately 12, indicating well-decomposed and stabilized compost suitable for agricultural use. The composting process required 12 laborers and consumed 248&#xa0;MJ of energy. Utilizing the prepared compost as a fertilizer reduced the need for chemical fertilizers, saving ₹845 per ton and mitigating carbon emissions by 1,500&#xa0;kg per ton. This study highlights the potential of SPRE-RITECH microbial consortia in enhancing soil fertility, increasing crop productivity, and promoting soil carbon sequestration. The findings revealed that the decomposition efficiency and compost quality in large-scale field applications closely aligned with previously observed laboratory-scale results, demonstrating the practical scalability.</p>

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On-field valorization of rice straw by microbial SPRERITECH consortia: a novel approach to agricultural waste management and resource recovery

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Amrita Doshi,
  • Pranay R. Lanjekar,
  • Aesha Patel,
  • Anil K. Dubey,
  • Sunil K. Suman,
  • Sanjay K. S. Patel

摘要

Effectively managing rice straw is crucial for sustainable agriculture and environmental conservation. Additionally, the synthetically designed microbial consortia can be desirable for decomposing agricultural-based residues. This study explores the on-field composting of 1 ton of rice straw using the novel SPRERITECH consortia, a microbial formulation encapsulating bacterial and fungal strains via synthetic design. The application of this technique significantly reduced the composting duration by 50%, yielding mature compost within 25 days. The final compost maintained a safe moisture content of 12%. It exhibited an optimal NPK composition of N ≈ 1.5%, P ≈ 0.75%, and K ≈ 0.84% with a C: N ratio of approximately 12, indicating well-decomposed and stabilized compost suitable for agricultural use. The composting process required 12 laborers and consumed 248 MJ of energy. Utilizing the prepared compost as a fertilizer reduced the need for chemical fertilizers, saving ₹845 per ton and mitigating carbon emissions by 1,500 kg per ton. This study highlights the potential of SPRE-RITECH microbial consortia in enhancing soil fertility, increasing crop productivity, and promoting soil carbon sequestration. The findings revealed that the decomposition efficiency and compost quality in large-scale field applications closely aligned with previously observed laboratory-scale results, demonstrating the practical scalability.