Effect of effect of spacing on Tuber Yield of Shatavari (Asparagus recemosus L.) under Teak (Tectona grandis) based Agroforestry System

The study aims to evaluate how different plant spacing and organic manures affect Shatavari's growth, yield, and economic viability in both open fields and teak agroforestry. Conducted over two years (2022–24) at the Experimental Farm of United University, Prayagraj, India, the research utilized a Factorial Randomized Block Design (FRBD) with twelve treatment combinations across three replications. The subtropical site with alluvial soils was ideal for testing these agro-technological methods. Findings provide crucial insights for optimizing Shatavari cultivation in teak agroforestry, highlighting that strategic interventions can enhance productivity and profitability. The analysis shows that organic manures, especially Vermicompost (M2) and Farmyard Manure (M1), significantly improve growth and yield in both settings, with Vermicompost yielding the highest net returns and cost-benefit ratios. This can be attributed to its rich nutrient content, enhanced microbial activity, and improved soil physicochemical properties, which collectively foster a more conducive environment for Tuber development and overall plant health. The superior economic performance of organically grown Shatavari, commanding a higher market price, solidifies the argument for adopting these sustainable practices.