Effect of irrigation type and interval on soil salinity in clay soils in Ahvaz, Iran
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ORIGINAL PAPER
Effect of irrigation type and interval on soil salinity in clay soils in Ahvaz, Iran Ahmad Bahmaei 1 & Mohammad Albaji 1
&
Abd Ali Naseri 1 & Peyman Varjavand 2
Received: 5 November 2019 / Accepted: 6 October 2020 # Saudi Society for Geosciences 2020
Abstract The current research was carried out at the Agricultural Research and Education Center for Agrarian and Natural Resources of the Khuzestan Province, Ahvaz, Iran, in an area of approximately 1.5 ha in 2016. The research was aimed at the comparing of the efficiency of the effects of sprinkler and surface irrigation systems in heavy soil texture and their effect on soil salinity and alkalinity. The irrigation systems utilized were sprinkler irrigation systems (irrigation intervals of 3, 5, and 7 days) and surface irrigation systems (furrow and basin) with 7–8-day intervals. The results showed that the electrical conductivity of the soil saturation extract (ECe) decreased by irrigation, whether in sprinkler irrigation or in surface irrigation, except for 7-day irrigation with irrigation intervals due to irrigation system and increasing the capillary rise of the material to high levels of soil has led to constant soil electrical conductivity and in some cases increased. Also, it should be noted that none of the studied irrigation systems (sprinkler and surface irrigation) had a significant positive effect on the sodium content of the soil and, as observed, sodium values at all irrigation systems have passed the same process. Keywords Basin irrigation . Electrical conductivity . Furrow irrigation . Soil alkalinity . Soil salinity . Sprinkler irrigation
Introduction Population growth in developing countries, along with the ever increasing consumption of a variety of foodstuff in these countries, has led to an unprecedented increase in global food demand in contemporary times. In the past, the increase in crop production largely occurred through the increase and expansion of the Responsible Editor: Amjad Kallel * Mohammad Albaji [email protected]; [email protected] Ahmad Bahmaei [email protected] Abd Ali Naseri [email protected] Peyman Varjavand [email protected] 1
Faculty of Water & Environmental Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2
Khuzestan Agricultural and Natural Resources Research and Education Center , Agricultural Research Education and Extension Organization (AREEO), Ahvaz, Iran
areas under cultivation; however, in recent years, the surge in crop production has relied greatly on the increase in crop yield. Contrastively, the scarcity of water in arid and semiarid regions such as Iran has been a restricting factor for the development of the agricultural sector; therefore, there is an imperative need to develop initiatives to save water in this particular sector (Abyaneh et al. 2017). One of the most important limitations in the development of the agricultural sector is water, and among the important factors in increasing production per unit area is the proper use of this life-giving elem
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