International Journal of Plant & Soil Science

The present experiment entitled “Influence of nutrient concentration on Growth, Yield and Quality of Spinach (Spinacia oleracea L.) in Hydroponic system” was carried out in Shade net, Research Field, Department of Horticulture, SHUATS, Prayagraj during  March- April,2020.. The experiment was laid out in complete randomized design (CRD), with eight treatments, replicated thrice with nutrient field technique hydroponics system and variety Mulayam of Spinach, the treatments were T₁ (NPK 6.25 ml/plant), T₂ (NPK 8.33 ml/plant), T₃ (NPK 10.41 ml/plant), T₄ (NPK 12.5 ml/plant), T₅ (NPK 14.58 ml/plant), T₆ (NPK 16.66 ml/plant), T₇ (NPK 18.75 ml/plant) and T₀ (NPK 0 ml/plant). From the present experimental findings, it is found that structure with treatment T₄ was found best in terms of Growth and yield parameters of spinach in NFT hydroponic system followed by structure with T₃ and T₁ due to appropriate supply of plant nutrients and the water treated plants had the lowest values. Maximum gross return (1871.30Rs) and net return (746.30 Rs) and maximum benefit cost ratio (1.66) was also observed in treatment T_4. As seen from the experiment, it was observed that the treatment T₄ was ideal nutrient for Spinach good growth and yield. Therefore, an ideal nutrient concentration helps the plants in good growth and yield.