African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6849

Full Length Research Paper

The influence of organic manure formulated from goat manure on growth and yield of tomato (Lycopersicum esculentum)

Edgar Mowa
  • Edgar Mowa
  • Department of Crop Science, University of Namibia, Private Bag 13301, Windhoek, Namibia.
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Levi Akundabweni
  • Levi Akundabweni
  • Department of Crop Science, University of Namibia, Private Bag 13301, Windhoek, Namibia.
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Percy Chimwamurombe
  • Percy Chimwamurombe
  • Department of Natural and Applied Sciences, Namibia University of Science and Technology, Private Bag 13388,Windhoek, Namibia.
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Effiom Oku
  • Effiom Oku
  • Department of Soil Science, University of Abuja, Nigeria.
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Hupenyu Allan Mupambwa
  • Hupenyu Allan Mupambwa
  • Sam Nujoma Marine and Coastal Resources Research Centre (SANUMARC), University of Namibia, P. O. Box 462 Henties Bay, of Namibia.
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  •  Received: 15 August 2017
  •  Accepted: 13 September 2017
  •  Published: 12 October 2017


The influence of organic hydroponic nutrient solution on tomato growth and yield was studied using a randomized complete block design (RCBD) with three treatments (organic nutrient solution, conventional hydroponic fertiliser (as positive control) and plain tap water (as negative control)) replicated three times. Determinate tomato seeds were germinated and transplanted into the 3 treatments. Twenty days after transplanting, vegetative response variables were recorded at fifteen days intervals from each treatment. Vegetative response variables included plant height, number of leaves and stem diameter. The reproductive parameters included number of flowers per plant, number of fruits per plant, average fruit weight (g), yield (kg) per plant and yield (kg) per treatment. Furthermore, the organic nutrient solution formulated from goat manure positively improved plant growth and yield performance of a tomato crop, and provided a technique feasible and alternative to conventional hydroponics. These results open further possibilities for other crops currently grown in hydroponics using conventional fertilisers.


Key words: Organic nutrient solution, growth, yield, goat manure, tomato.