The evaluation of various nutrient formulation on the growth of lettuce (Lactuca sativa Var. Arista) in hydroponic raft system at tropic region

Abstract

Lettuce ( Lactuca sativa Var. Arista) is leaf vegetable which consumes as a fresh vegetable. The quality is a crucial role in increasing the market price of lettuce. A large number of nutrient solution is sometimes confusing the farmer or grower which will they choose. The research objectives evaluate five nutrient formulation from local formulator and global formulator. This research conducted in June to July 2018 at Greenhouse of Universitas Padjadjaran, Jatinangor. Indonesia. The experimental design used in this research was completely randomized design with five treatments of nutrient formulation e.g., Sutiyoso (local formulator), Hoagland & Snyder, Hoagland, Shive & Robbins, and Resh Lettuce Anguila. The parameters of lettuce growth (plant height, leaves a number, leaf area, fresh weight of the plant, dry weight of the plant) observe and measure. The data of lettuce plant growth than analyzed with variance analysis =5% and post hoc test analysis use Duncan multiple range test =5%. Each of the treatment replicate five times. The results showed that different of nutrient formulations for lettuce have a different effect on growth parameters such as of plant height, number of leaves, leaf area, fresh weight of the plant, dry weight of the plant. The Sutiyoso nutrient formula effective for tropical lettuce hydroponics in Indonesia.