Nutrient management for growth, yield and quality of lettuce (Lactuca sativa) in hydroponics tower system

Abstract

The present experiment was carried out under the Shade net, Research Field, Department of Horticulture, SHUATS, Prayagraj during the month of November 2023 to February 2024. Experiment was laid out in Randomized Block Design (RBD), with nine treatments, replicated thrice with nutrient field technique hydroponics system and lettuce variety Grand Rapids. The treatments were T0 (Control), T₁ (NPK 1.4 ml/Plant), T2 (NPK 2.14 ml/Plant), T3 (NPK 2.8 ml/Plant), T4 (NPK 3.57 ml/Plant), T5 (NPK 4.28 ml/Plant), T6 (NPK 5.00 ml/Plant), T7 (NPK 5.71 ml/Plant) and T8 (NPK 6.42 ml/Plant). From the observations T7 was found to be the best relating to growth and yield parameters followed by T8 and T6. In gross return, net return and B.C maximum values were also recorded in T7.