Document Type : Research Paper
Authors
1
Associate Professor of Irrigation and Drainage Engineering, Agricultural Engineering Research Department, Hamedan Agricultural and Natural Resources Research and Education Center, AREEO, Hamedan, Iran.
2
Agricultural Engineering Research Institue, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
3
Soil and Water Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran.
4
Assistant Professor of Irrigation and Drainage Engineering, Agricultural Engineering Research Department, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz. Iran
5
Assistant Professor of Irrigation and Drainage Engineering, Agricultural Engineering Research Department, Kerman Agricultural and Natural Resources Research and Education Center, AREEO, Kerman, Iran
6
Assistant Professor of Irrigation and Drainage Engineering, Agricultural Engineering Research Department, Fars Agricultural and Natural Resources Research and Education Center, AREEO, Shiraz, Iran
7
Assistant Professor, Agricultural Engineering Research Department, Ahvaz Agricultural and Natural Resources Research and Education Center, AREEO, Ahvaz, Iran.
8
Associate Professor, Agricultural Engineering Research Department, East Azerbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.
Abstract
Figs are one of the main horticultural products in Iran due to their high nutritional value, high yield and economic value, and resistance to adverse climatic conditions. this study was conducted with the aim of determining the volume of irrigation water and physical and economic productivity of fig water. To measure the amount of applied irrigation water in fig orchards, 100 orchards in Fars, Lorestan, Khuzestan, Kerman and Kermanshah provinces were selected as hubs of this product in 2019-2020 . The applied irrigation water varied from 7706 to 13471 m3/ha and its average weight was 10428 m3/ha. Drip irrigation method has reduced the volume of applied water by 23.6% compared to surface irrigation method. The range of water productivity in the studied province was from 0.3 to 1.58 and its average was 1.16 kg/m3. The average of water productivity in drip and surface irrigation methods was 1.58 and 0.99 kg/m3, respectively. Drip irrigation compared to surface irrigation system increased crop yield by 11.9% and water productivity by 60%. The net and gross economical water productivity was 50.9 and 111.20 thousand Rials/m3, respectively. The average net irrigation water requirement in the study areas estimated by the Penman-Monteith method as well as the national water document were 749 and 696 mm, respectively. It is recommended to use the drip irrigation system instead of the surface irrigation system, which causes a 23.6% reduction in water consumption and a 60% increase in water efficiency.
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