G. Djoyowasito, W.H. Utomo, B. Suharto, Nur Basuki
A greenhouse experiment was conducted to study the effect of irrigation interval on the performance rice planted with Organic Planting Ribbon (OPR) as a growth medium in direct seeding system. The experiment also studied the water use efficiency of rice planted with OPR system. Theexperimental treatments consist of 2 factor, namely: (1) 3 growth medium system (control, close OPR and open OPR), and (2) 5 irrigation interval (I1: one- day, I2: two- day, I3: 3-day, I4: four-day and I5: five-day intervals).The experimental result showed that the open OPR was better (compared to closed OPR) for rice planting in direct seeding system. Rice planted with open OPR had a higher percentage of germinated seeds than the closed OPR (90.42% for open OPR compared to 55.42% for close OPR). The rice seddling in open OPR growth better as shown by the higher root dry weight (0.53 g plant-1 for open OPR compared to 0.33 gplant-1 for close OPR), and a highershoot dry weight (0.71 g plant-1 for open OPR compared to 0.50 g plant-1 for close OPR). The use of OPR in direct seeding system increased water use efficiency of the rice plant. © 2014 AENSI PUBLISHER All rights reserved.
University of Brawijaya, Malang, Indonesia; International Research Centre for Mining and Degraded Land, University of Brawijaya, Malang, Indonesia; Research Centre for Tubers and Root Crops, University of Brawijaya, Malang, Indonesia
