Author(s):

SA Mansuri, RR Shakhela, Kashyapkumar N Patel and JS Jat

Abstract: The present investigation was carried out to study the comparative efficiency of different Zn-enriched organics on crop yield and increase the fertilizer use efficiency in pearl millet (var. GHB-744). The enrichment of different organics was carried with Zn by composting the locally available organics viz., farm yard manure (FYM), poultry manure (PM), vermicompost (VC) and biogas slurry (BGS) for six to seven weeks as required to complete the enrichment process. Nitrogen contents in seed and straw, Zn contents in seed and straw and protein content in seed were increased significantly due to application of 100% RDNP with 500 kg PM enriched with 5.0 kg Zn ha^-1 (T₁₂). Nitrogen, potassium and zinc uptake by seed and straw and protein yield were significantly the highest due to application of 100% RDNP with 500 kg PM enriched with 5.0 kg Zn ha^-1 (T₁₂). In Phosphorus uptake by seed and straw was significantly increased by the application of 100% RDNP with 500 kg PM enriched with 2.5 kg Zn ha^-1 (T₁₁). An application of 100% RDNP with 500 kg PM enriched with 5.0 kg Zn ha^-1 (T₁₂) enhanced organic carbon status and availability of nutrients like nitrogen, Phosphate, Potash and Zn in soil after harvest.

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