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首页> 外文期刊>Journal of King Saud University >Effects of different growth media on water quality and plant yield in a catfish-pumpkin aquaponics system
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Effects of different growth media on water quality and plant yield in a catfish-pumpkin aquaponics system

机译：growth鱼-南瓜鱼菜共生系统中不同生长介质对水质和植物产量的影响

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摘要

Aquaponics production of fish and plant is one of the environmentally sustainable farming methods of the twenty-first century. In this study, two agricultural wastes (Palm kernel shells aka PKS and Periwinkle shells aka PWS) were evaluated for their suitability as growth beds in the propagation of pumpkinTelfairia occidentalis.In addition, conventionally used gravel and its mixture with PKS and PWS (33.33% each) were also tested. The resultant effects of these treatments on water quality of the system were reported. The result obtained reveals better performance of pumpkin in the PKS and PWS medias in terms of vine length, leave area, leave number, branch number and bi-weekly plant yield. The least performance was observed in the plants propagated in the gravel substrate. Water quality and percentage nitrogenous compound reduction (NH3,NO2and NO3) across the system and in the different grow beds suggests that mixing all substrate resulted in better water qualities for fish and plant growth. Aside the superior growth observed in this study, alternative uses of these agricultural by-products in aquaponics system is highly recommended because of the possibility of converting waste to wealth.
机译：鱼和植物的水培法生产是二十一世纪环境可持续的耕作方法之一。在这项研究中，评估了两种农业废物（棕榈仁壳又名PKS和长春花壳又名PWS）在南瓜圆叶西兰花繁殖中作为生长床的适用性;此外，常规使用的砾石及其与PKS和PWS的混合物（33.33％每个）也进行了测试。报告了这些处理对系统水质的最终影响。获得的结果表明，在葡萄树长度，叶片面积，叶片数，分支数和每两周产量方面，南瓜在PKS和PWS培养基中表现更好。在砾石基质中繁殖的植物中观察到的性能最低。整个系统和不同生长床中的水质和含氮化合物的减少百分比（NH3，NO2和NO3）表明，混合所有底物可提高鱼类和植物生长的水质。除了在这项研究中观察到的快速增长之外，强烈建议在水培系统中替代使用这些农业副产品，因为有可能将废物转化为财富。

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