Response Analysis of Rice Products on Various Conditions of Water Availability for Development of Optimal Water Sawing Irrigation

Abstract

Farm systems with stagnant water require adequate water sources, because water is one of the most influential basic factors. Meanwhile, the availability of water decreased, while the level of water consumption increased. Water-saving irrigation solves the problem of water in rice cultivation. This study aims to determine the response of rice yields with the application of water-saving irrigation. The experiment was carried out with 5 treatments of water availability in the field: less than 50% of available water, 50%-60% of available water, 60%-70% of available water, 70%-80% of available water, and saturated). Each treatment was tested three times and the parameter observed was the productivity of rice plants. As a result, statistical analysis stated that there was no difference in rice productivity between all treatments of water availability in the field, with a significance value of 0.600, which is > 0.05. The highest productivity of rice plants is 6.44 tons/ha, namely the availability of water on the land at 70% and 80% available water. There is no difference in the value of rice productivity in saturated conditions with the application of water-saving irrigation, proving that the availability of water in the land in conditions of less than 100% available water has no effect on rice crop production.