Abstract
The greatest need for water is the agricultural sector, which is about 80% of the total water demand. The current conventional irrigation system is a water wasteful system. This study compares the water requirements and yields of conventional rice production systems with a water-saving irrigation system, a combination of System of Rice Intensification (SRI) and Alternate Wetting and Drying (AWD). The model used is a pot with a planting pattern following the SRI method, while the water supply arrangement follows the AWD system. There are six variations used in the model. The results showed that giving irrigation water at variation 1 (water depth -5 cm) and variation 2 (water depth -10) could save water 33.53% and 19.55%, with crop production increasing 29.83% and 21.39% greater than variation 6 (conventional method). For variations 3 (depth -15 cm) and 4 (depth -17 cm) it is not recommended to apply because even though there is water savings, the results are smaller than variation 6. Variation 1 also has the highest water productivity, namely 11.93 gr/l, followed by variation 2 amounting to 9.22 gr/l, while for variation 6 the water productivity is 6.11 gr/l.