Effect of different nutrient concentration of N, P and K on growth, yield and quality of Lettuce (Lactuca sativa) in Nutrient film technique (NFT) of Hydroponic System

Abstract

The present experiment was carried out during November, 2019 to January, 2020 in Shade net, Research Field, Department of Horticulture, SHUATS, Prayagraj. The experiment was conducted in Randomized Block Design (RBD), with eight treatments, replicated thrice with nutrient field technique hydroponics system and variety Lallo rosa of Lettuce, 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 T5 was found best in terms of Growth and yield parameters of lettuce in NFT hydroponic system followed by structure with T4 and T6. Maximum gross return (2736.00 Rs) and net return (1511.16 Rs) was recorded in structure with treatment T5 and maximum cost benefit ratio 2.23 was observed in structure with treatment T5.