Synergistic Effects of Farmyard Manure and Coconut Frond Biochar on Growth and Yield of Brinjal

Abstract

A field experiment was conducted to evaluate the effect of integrating farmyard manure (FYM) with different organic amendments like vermicompost, thermo chemical organic fertilizer and coconut frond biochar on the growth and yield of brinjal (Solanum melongena L.). Treatments consisted of FYM @ 12.5, 15 and 20 t ha-¹, FYM @ 10 t ha-1 along with 2.5, 5 and 10t ha-1 of the organic amendments viz., vermicompost, TOF and coconut frond biochar, FYM @ 20 t ha-1 +coconut frond biochar at 5 t ha-¹ and an absolute control. Results revealed that the combined application of FYM and biochar (FYM @ 20 t ha-1 + coconut frond biochar at 5 t ha-¹) significantly improved plant growth parameters, total dry matter production, and overall yield compared to other treatments. The enhanced performance observed for the treatment receiving combined application of FYM and biochar is attributed to improved soil physical conditions, increased nutrient availability, and better moisture retention associated with the synergistic effects of FYM and biochar. Overall, the study highlights the potential of combining organic manure with biochar as a sustainable soil-management practice for enhancing crop productivity and supporting long-term soil health.