Effect of Saline Water on Physicochemical Properties of Soil Used in Plastic Nursery Bags of Three Months Olive Sprouted Cuttings under Tunnel Conditions
Journal Title: Current Investigations in Agriculture and Current Research - Year 2018, Vol 1, Issue 4
Abstract
The quality of irrigation water has the potential to significantly affect soil structural properties. The study was carried out at NARC Islamabad during August, 2017 to October, 2017 to investigate the effect of saline water on the soil characteristics as well as ionic concentrations in 4 olive varieties i.e. Uslo, Coratina, Carolea and Moraila having 3 months sprouted olive cuttings under different saline water treatments in tunnel. Six levels of saline water were artificially developed (ECw=0,2,4,6,8,10dSm-1). Completely randomized design was applied with three replications. Olive cuttings were irrigated with six saline water three times in a week. Results of this study indicated that soil pH was mentioned no differences with saline water irrigations among three olive varieties. However minute changes in soil pH were noted. Soil ECe was increased as well as the salinity of irrigation water was increased. Soil Na determined increasing trend as the salinity of irrigation water increased. Decreasing trend in soil K was noticed against the increasing of salinity levels by saline irrigation waters. Soil Ca+Mg described the increasing behavior as the salinity of irrigation water increased. Na+ in leaf olive tissues showed increasing behavior as the salinity of irrigation water increased. No difference was observed among three olive varieties. In leaf olive tissues showed increasing trend as the salinity of irrigation water increased. But the increasing trend is very minute as compared to the increase in Na+ Saline irrigation water contains dissolved substances known as salts. Salinization is one of the most serious types of land degradation as well as and a major obstacle to the optimal utilization of land resources [1]. Approximately 952 million ha are estimated to be salt affected and this area is increasing year after year all over the world [2]. Soil salinity (electrical conductivity: EC>4 dSm-1) is a major abiotic stress which limits plant growth and development, causing yield loss in crop species [3]. Salt- affected soils are identified by excessive levels of water-soluble salts, especially sodium chloride (NaCl) [4]. Salinity is causing decline in soil productivity and crop yield which results in severe degradation. Olive is considered moderately tolerant to salinity [5], although the response of plants to saline stress is a genotypic dependent characteristic [6,7]. However, tolerance to NaCl in olive is mostly related to the salt exclusion mechanism at the root level, which prevents sodium (Na+) accumulation in leaf tissue as well as the ability of the olive to maintain an essential potassium (K+)/ Na+ ratio [6]. Indiscriminate flood irrigation with poor drainage facilities, deep plowing of marginal and naturally saline soils, overexploitation of groundwater, recycling of drainage outflows for irrigation, and mono-cropping of high water consumptive crops are the major factors accelerating secondary soil salinization in Mediterranean regions and in Central Asia [8].
Authors and Affiliations
Muhammad Arshad Ullah, Syeda Sana Aamir, Bilal Adil, Hussnain Haider, Imdad Ali Mahmood, Badar uz Zaman, Syed Ishtiaq Hyder
Keywords
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- EP ID EP570168
- DOI 10.32474/CIACR.2018.01.000116
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