A Comparative Study on the Nutrient Composition of the Biogas Slurry and other Organic Fertilizers used by Small Scale Farmers in Kenya

Authors(5) :-Nyangau Jared, Gatebe Erastus, Nyagah Christopher, Njugi Alex, Ahenda Stephen

A study was taken to compare the chemical composition of three organic fertilizers; biogas slurry, farmyard manure and slurry compost used by small scale farmers in Kajiado, Kiambu and Nakuru counties in Kenya for agricultural purposes. Proper utilization of the organic fertilizers can reduce the use of mineral fertilizers by 50% therefore reducing the cost of production. Both macro and micro nutrients: Nitrogen, Phosphorous, Potassium, Calcium, magnesium, Manganese, Copper, Iron and Zinc were analysed using the Standard Operating Procedures and compared to Kenyan organic fertilizer standards. The analysis indicated great variability in the levels of the nutrient composition from one organic fertilizer type to another.

Authors and Affiliations

Nyangau Jared
Department of Chemistry, College of Pure and Applied Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Gatebe Erastus
Research Technology & Innovation Department (RTI), Kenya Industrial Research and Development Institute (KIRDI),Nairobi, Kenya
Nyagah Christopher
Department of Chemistry, College of Pure and Applied Sciences, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Njugi Alex
Kenya Plant Health Inspectorate Service (KEPHIS), Nairobi, Kenya
Ahenda Stephen
Kenya Plant Health Inspectorate Service (KEPHIS), Nairobi, Kenya

Biogas Slurry, Mineral Fertilizer, Organic Fertilizers

  1. Abubaker J., (2012).Effects of fertilization with biogas residues on crop yield, soil microbiology and greenhouse gas emissions. Acta universitatis agriculture sueciae, 46:1-79.
  2. Ahmad R., and Jabeen N.,(2009).Demonstration of growth improvement in sunflower by the use organic fertilizer under saline condition. Pakistan journal of Botany, 41:1373-1384.
  3. Alam, S. (2006).Production of organic manure in Bangladesh, Bangladesh Livestock Research Institute’s report, Savar, Dhaka, Bangladesh.
  4. Barbazán, M., Del Pino, A., Moltini, C., Hernández, J. and Rodríguez, J., (2011).Caracterización de Materiales Orgánicos Aplicados en Sistemas Agrícolas Intensivo de Uruguay. Agrociencia Uruguay, 15: 82-92.
  5. Gutser,R.,Ebertseder,Th.,Weber,A.,Schram,M and Schmidhalter,U.,(2005).Short-term and residual availability of nitrogen after long-term application of organic fertilizers on arable land. Journal of plant Nutritional and Soil science, 168:439-446.
  6. Jin, H., Chang, Z., (2011): Distribution of heavy metals contents and chemical fractions in anaerobically digested manure slurry. Journal of applied Biochemistry and Biotechnology, 164:268-282
  7. Maqbool, S,ul Hassan A, Akhtar MJ.Tahir M (2014).Integrated use of biogas slurry and chemical fertilizer to improve growth and yield of okra. Science Letters, 2(2):56-59.
  8. Mikled CS.,Jiraporncharoen S.,Potikanond N., (1994).Fermented slurry as fertilizer for the production of forage crop. Final report, Thailand German Biogas Programme application, fertilizers resources;8(3):297-306
  9. Nicholson, F.A., Chambers, B.J., Williams, J.R. and Unwin, R.J., (1999) .Heavy Metal Contents of Livestock Feeds and Animal Manures in England and Wales. Bioresource Technology, 70: 23-31.
  10. 0Nyang’au J., Gatebe E.,Nyagah C.,Ahenda S.,2016.Evaluation of Biogas Slurry as an Alternative Organic Fertilizer a case study in Kenya. International Journal of Extensive Research, 9:10-14.
  11. Olaniyi, J.O and Akanbi, W.B, (2007).Effect of organo mineral and inorganic fertilizers on the yield quality of fluted pumpkin. Africa crop science journal, 8:347-350.
  12. Seafatullah,M.,Hoque,M.A.,Islam,M.S.,Islam,M.M and Islam,M.N.,(2015).Effect of cow dung, biogas slurry and vermicompost on phosphorous adsorption behaviour of soil. Journal of scientific research ,7(3):167-175
  13. Silveira, M., (2013).Nitrogen fertilizers sources for forage grasses in Florida. The cattleman and livestock journal. 71(11):8-12
  14. Stone DM, Elioff JD., (1998). Soil properties and Aspen development five years after compaction and forest floor removed. Canadian journal of soil science, 78:51-58
  15. Yu, F.B., Luo, X.P., Song, C.F., Zhang, M.X., and Shan, S.D.,(2010).Concentrated biogas slurry Enhanced soil fertility and tomato quality. Journal of Acta agriculture Scandinavia section B-soil and plant science, 60:262-268.

Publication Details

Published in : Volume 3 | Issue 1 | January-February 2017
Date of Publication : 2017-02-28
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 233-238
Manuscript Number : IJSRSET173150
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Nyangau Jared, Gatebe Erastus, Nyagah Christopher, Njugi Alex, Ahenda Stephen , " A Comparative Study on the Nutrient Composition of the Biogas Slurry and other Organic Fertilizers used by Small Scale Farmers in Kenya, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 1, pp.233-238, January-February-2017.
Journal URL : http://ijsrset.com/IJSRSET173150

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