Supplement fertilizers improved rainy season tomato yield in sandy dryland soil I Komang Damar Jaya, Sudirman, Bambang Budi Santoso, Jayaputra
Department of Agronomy, Faculty of Agriculture, University of Mataram
Abstract
This study aimed to increase the yield of tomatoes in the rainy season, known as off-season, on sandy dryland soil. Two hybrid tomato varieties and four different supplement fertilizers were tested. The tomato varieties were Servo and Tymoti, and the supplement fertilizers were chicken manure, foliar fertilizers of Growmore, Provit Orange, and Provit Red, plus one treatment without additional fertilizer. The standard fertilizer applied was 1200 kg ha-1 NPK (15-15-15). All the treatments were arranged factorially using a randomized block design with three replications. The results showed that the varieties responded similarly to the supplement fertilizer treatments, and there was no difference in yield between the two varieties. Tomato plants produced more fruits and fruit weight when treated with supplement fertilizers, but there were no differences in the yield of all supplement fertilizer treatments. Tomato plants treated with supplement fertilizer produced fruits and fruits weighing about 33 and 1.4 kg per plant, respectively. The treatment without supplement fertilizer produced about 27 fruits weighing 1.2 kg per plant. Supplement fertilizers are strongly recommended for higher off-season tomato yield in sandy dryland soils.
