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The role of different organic amendments to improve maize growth in wastewater irrigated soil
Journal of King Saud University-Science ( IF 3.7 ) Pub Date : 2021-09-03 , DOI: 10.1016/j.jksus.2021.101583
Saqib Bashir 1, 2 , Safdar Bashir 1 , Allah Bakhsh Gulshan 3 , Muhammad Jamal Khan 4 , Javaid Iqbal 5 , Javeria Sherani 6 , Arif Husain 2 , Niaz Ahmed 7 , Adnan Noor Shah 8 , Muhammad Adnan Bukhari 9 , Saqer S. Alotaibi 10 , Ahmed M. El-Shehawi 10 , Zeng-Hui Diao 2
Affiliation  

Wastewater irrigation in croplands is recognized as one of the major threat, seriously affecting soil health and sustainable agriculture around the globe. Heavy metals presence especially cadmium (Cd) in wastewater irrigated soils is posing serious physiological and morphological disorder in plants due to its highest mobility. Therefore, metals mobility in wastewater irrigated soils can be curtailed through eco-friendly and cost effective organic soil amendments compost (CP), press mud (PM) and moringa leaf extract (ME) at 3% rate that eventually reduces its translocation from polluted soil to plant. This study explored the possible effects of various types of organic soil amendments on Cd phytoavailability in wastewater degraded soil and its subsequent accumulation in maize tissues. Maize plant was grown in Ghazi University as a test plant and Cd accumulation was recorded in its tissues, translocation from root to shoot, chlorophyll contents, plant biomass, yield and soil properties (pH, NPK, OM and Soluble Cd) were also examined. Results revealed that the addition of amendments significantly minimized Cd mobility in soil by 45.8%, 23% and 19.4% when CP, PM and ME were added at 3% over control. Comparing the control soil, Cd uptake effectively reduced via plants shoots by 33.3%, 27.7% and 19.4% when CP, PM and ME. In addition, NPK were significantly increased among all the added treatments in the soil-plant system as well as improved chlorophyll contents relative to non-treated soil. The Current study suggested that among all the amendments, compost at 3% rate performed well and can be considered a suitable approach for maize growth in polluted soil.



中文翻译:

不同有机改良剂对改善废水灌溉土壤中玉米生长的作用

农田中的废水灌溉被认为是主要威胁之一,严重影响全球土壤健康和可持续农业。废水灌溉土壤中重金属的存在,尤其是镉 (Cd),由于其最高的流动性,对植物造成严重的生理和形态紊乱。因此,可以通过环保且具有成本效益的有机土壤改良剂堆肥 (CP)、压泥 (PM) 和辣木叶提取物 (ME) 以 3% 的比率减少废水灌溉土壤中的金属迁移率,最终减少其从污染土壤中的转移种植。本研究探讨了各种类型的有机土壤改良剂对废水降解土壤中 Cd 植物有效性及其随后在玉米组织中的积累可能产生的影响。玉米植株在 Ghazi 大学作为试验植物种植,并记录了其组织中的 Cd 积累、从根到地上部的易位、叶绿素含量、植物生物量、产量和土壤特性(pH、NPK、OM 和可溶性 Cd)。结果表明,当 CP、PM 和 ME 的添加量超过对照的 3% 时,添加改良剂显着降低了土壤中 Cd 的迁移率 45.8%、23% 和 19.4%。与对照土壤相比,当 CP、PM 和 ME 时,植物芽对 Cd 的吸收有效降低了 33.3%、27.7% 和 19.4%。此外,与未处理土壤相比,土壤-植物系统中所有添加处理的 NPK 均显着增加,叶绿素含量也有所提高。当前的研究表明,在所有修正案中,

更新日期:2021-09-14
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