Integrated application of meat waste-derived organic fertilizer and chemical fertilizer in sugarcane cultivation.
Wotango AS, Dagnaw F, Birhanu MK, Ewnetu AW, Negi T
Soil Health
Halving the synthetic fertilizer on your vegetable garden while adding compost from organic waste could match your current yields — and this study gives that intuition a rigorous field test with measurable soil and crop data.
Scientists took waste from a slaughterhouse, fermented it with helpful bacteria, and turned it into a rich compost-like fertilizer. When they grew sugarcane using half the usual chemical fertilizer plus this organic mix, the plants did just as well as those getting the full chemical dose. The organic fertilizer also introduced beneficial soil microbes that help plants absorb nutrients and fight off disease.
Key Findings
Combining 5 tonnes/ha of meat-waste organic fertilizer with 50% of the recommended chemical fertilizer matched the yield of 100% chemical fertilizer alone.
The organic fertilizer contained 13.90% total organic carbon — far above the typical soil level of under 2% — and had toxic heavy metals (Hg, Pb, Cd, As) well below safety thresholds.
Twenty bacterial species were identified in the fertilizer; Lysinibacillus sphaericus (nitrogen-fixing) was most common, alongside phosphate-solubilizing species like Bacillus simplex and Kocuria varians.
chevron_right Technical Summary
Researchers turned slaughterhouse meat waste into organic fertilizer and found that mixing it with just half the usual chemical fertilizer grew sugarcane just as well as full chemical fertilizer alone — while also boosting phosphorus levels in the juice.
Abstract Preview
Slaughterhouse waste is a major source of environmental pollution. However, its rich organic content holds considerable potential for enhancing soil fertility. Herein, slaughterhouses meat waste wa...
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