Effect of Different Fertilizer Levels on Growth and Yield of Linseed (Linum usitatissimum L.) under Guava (Psidium guajava L.) Based Agroforestry System

The study was conducted during 2021-2022 during the Rabi season in Mirzapur district, Uttar Pradesh (Vindhyan region) at the agroforestry system of Rajiv Gandhi South Campus, Department of Agronomy, Banaras Hindu University. This research aimed to analyze different levels of NPK on the growth parameters, yield attributes, and yield of linseed under guava based Agroforestry system. The experiment was laid out in a randomized block design with nine treatments. Results indicated that increasing NPK levels positively impacted linseed growth parameters and yield attributes. The highest NPK application (60-60-50 kg ha-1) resulted in the most favorable outcomes. Economic analysis revealed that higher NPK concentrations led to increased gross returns, net returns, and benefit-cost ratios. Based on the findings, it is recommended to apply 60 kg N ha-1, 30 kg P ha-1, and 25 kg K ha-1 for optimal growth and yield of linseed under the guava-based Agroforestry system, leading to maximum net returns.