JWSS - Journal of Water and Soil Science

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Raisi Nafchi A, Abedi Koupai J, Gheysari M, Eshghiazeh H. Aerobic Cultivation of Different Rice Varieties Using Surface and Subsurface Drip Irrigation Systems (Case Study: Isfahan). jwss 2025; 29 (3) :1-11
URL: http://jstnar.iut.ac.ir/article-1-4461-en.html

Rice is one of the most important crops and the primary food source for more than half of the world's population. The present study was conducted to compare the direct-seeded rice (DSR) of three rice varieties (Jozdan, Firuzan, and Sazandegi) using surface (DI) and subsurface (SDI) drip irrigation systems. The experiment was performed as a split–split plot arranged in a randomized complete block design with three replications in two years (2019 and 2020) in the research farm of Isfahan University of Technology in Najaf-Abad. According to the results of the variance analysis, the most suitable cultivar for DSR in the region (among the tested cultivars) is Sazandegi with a grain yield of 3400 kg/h-1. The results of this experiment showed that the amount of water consumed in DI was 20% less than in SDI. Also, DSR reduced water consumption by 40% compared to transplanted rice (TPR) in the region. However, the grain yield also decreased by about 45%.