Document Type : Original Article
Authors
1
Department of Water Science and Engineering, College of Agriculture, Isfahan University of Technology
2
1. MSc Student, Water Science and Engineering -Irrigation and Drainage, College of Agriculture, Agriculture and Natural Resources Campus, University of Tehran,
3
MSc Student, Department of Water Science and Engineering, College of Agriculture, Isfahan University of Technology
4
PhD Studen,Agricultural Ecology, College of Agriculture, Yasouj University
10.22034/nawee.2025.481004.1108
Abstract
Direct cultivation of dry rice is one of the methods of cultivating this product that has attracted the attention of researchers today. It is favored due to its ability to reduce the use of agricultural tools and machinery, decrease labor force and seed consumption, and significantly lower the initial cost and input energy needed for planting. In order to investigate the water and energy efficiency of traditional and direct rice cultivation, a factorial experiment was conducted in the form of a randomized complete block in Mamsani city. The results showed that direct cultivation, compared to traditional cultivation, significantly reduced the yield of paddy. However, it did not have a significant effect on the physical and quality characteristics of the product. This study calculated the values of input and output energy, as well as the percentage share of each input. Additionally, it calculated the indicators of the ratio of input to output energy, economic energy efficiency, and physical energy efficiency for each treatment. The results of these indicators demonstrated that as input energy decreases, economic and physical energy efficiency increase. Among the treatments, the best treatment in terms of water and energy efficiency was the Shamim cultivar, followed by the Fajr cultivar. Therefore, direct cultivation of the Shamim and Fajr varieties is recommended for rice farmers in Mamsani city.
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