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  • 1 DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY, TAMIL NADU AGRICULTURAL UNIVERSITY, Please ask the editor of the journal.
  • 2 DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY, TAMIL NADU AGRICULTURAL UNIVERSITY, Please ask the editor of the journal.
  • 3 DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY, TAMIL NADU AGRICULTURAL UNIVERSITY, Please ask the editor of the journal.
  • 4 DEPARTMENT OF SOIL SCIENCE AND AGRICULTURAL CHEMISTRY, TAMIL NADU AGRICULTURAL UNIVERSITY, Please ask the editor of the journal.
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A field experiment was conducted to study the influence of zinc-enriched organic manures on a maize crop. Organic manures, namely farmyard manure, poultry manure, coir pith and biogas slurry enriched with 0, 12.5 and 25.0 kg ZnSO4 ha -1 were evaluated for their influence on dry matter production, yield and uptake of zinc in maize. The results revealed that the application of poultry manure was better compared to other sources, resulting in a 26.6% increase in yield. By resorting to the enrichment of poultry manure with zinc, it was possible to save 12.5 kg ZnSO4 ha –1, thereby saving the cost of zinc fertilizer.

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