Effect of Hoagland Solution for Growing Tomato Hydroponically in Green house

The present study was done to evaluate the effect of Hoagland solution for growing tomato hydroponically in greenhouse. The experiment was carried out in fan pad cooled greenhouse, using substrate with cocopeat, perlite and vermiculite (3:1:1 v/v). A NFT was developed for hydroponically grown tomatoes to supply nutrient solution to plants placed in net pots in PVC pipes. The experiment consists of 3 replications and 3 treatments. Nutrient solution was placed in 100L of tank. There were 9 tanks for the experiment. Three kinds of nutrient solution were used for each replication: 1) Hoagland solution at 100% concentration as treatment 1; 2) Hoagland solution at 75% concentration as treatment 2 and 3) Hoagland solution at 50% concentration as treatment 3. Plant growth, total fruit yield, TSS (total soluble solids) and titrable acidity were higher in Hoagland solution at 100% concentration than the others, but there was no significant difference between the three solutions in terms of diameter of stem, moisture content, firmness and lycopene. The result showed that Hoagland solution at 100% concentration increased the height of plants as well as total fruit production including fruit quality i.e. TSS and titrable acidity. Cost analysis for the hydroponic system was also done.