Evaluation the Impact of Using Treated Wastewater for Irrigation on Soil Chemical Properties and Crop Productivity in Gaza Strip

Israa University Journal for Applied Science Pub Date : 2018-10-01 DOI:10.52865/syrm9796

R. Idais, A. R. Nassar, A. Mughari

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Abstract

The aim of study is to investigate the impact of using treated wastewater for irrigation on soil chemical properties and plant productivity. An reuse pilot study was carried out in Al-Zaitoun agricultural farm in the Gaza Strip from May to September 2011. A comparison was carried out between the soil properties in two experimental plots; one was irrigated with the effluent from Gaza Wastewater Treatment Plant over a period of four months, and the other was irrigated with fresh water from agricultural well in the same period. The crop used was sorghum. Samples of fresh water and treated wastewater were obtained and analyzed for pH, TDS, EC, Na, Cl, TKN, TP, K, BOD, NO3, TSS, FC, Fe, Mn, Zn. Composite soil samples were taken from depth of 0-30 cm in both plots and analyzed for the main chemical parameters. The results indicated that the level of TDS, Na, Cl, TSS, Zn and Fe were higher in the effluent than the fresh water; it was above the recommended Palestinian standard for dry fodder irrigated by treated wastewater. Also, irrigation with wastewater lead to significant increase in O.M%, CEC, K, TP, Ca, Mg, Na, and Cl in soil than irrigation with fresh water. In addition, the increases of Zn, Fe, Mn, and Pb in soil and sorghum plant irrigated with treated wastewater were significant in comparison with the plants irrigated with fresh water. Further, treated wastewater increased the plants height, and grain weight of sorghum.

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评价使用处理过的废水灌溉对加沙地带土壤化学性质和作物生产力的影响

本研究的目的是探讨处理后的废水用于灌溉对土壤化学性质和植物生产力的影响。2011年5月至9月在加沙地带的Al-Zaitoun农场进行了一项再利用试点研究。对两个试验区的土壤特性进行了比较;其中一个用加沙污水处理厂的污水灌溉了四个月，另一个在同一时期用农井的淡水灌溉。所用的作物是高粱。获取淡水和处理后的废水样品，分析pH、TDS、EC、Na、Cl、TKN、TP、K、BOD、NO3、TSS、FC、Fe、Mn、Zn。在两个样地0 ~ 30 cm深度采集复合土壤样品，分析主要化学参数。结果表明:出水中TDS、Na、Cl、TSS、Zn、Fe含量均高于淡水;它高于巴勒斯坦推荐的用处理过的废水灌溉干饲料的标准。废水灌溉导致土壤有机质、CEC、K、TP、Ca、Mg、Na和Cl含量显著高于淡水灌溉。此外，处理过的废水灌溉土壤和高粱植株中Zn、Fe、Mn和Pb的含量显著高于淡水灌溉植株。此外，处理后的废水提高了高粱的株高和籽粒重。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Israa University Journal for Applied Science

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