Application of sewage sludge as a soil biofertilizer enhances crop productivity of alfalfa plants (Medicago sativa L.) and improves soil quality without heavy metal toxicity.

Sci Rep · 2026 · PMC12976028 · PMID 41680423

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highly significantno p-value reported

The enhancement was highly significant in the case of the leaf parameters including leaf area and number of leaves.

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