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D Ndikumana
F Kanani

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D Ndikumana
F Kanani

International Journal of Agricultural Policy and Research
ISSN 2350-1561
Vol.3 (8), pp. 314-322, August 2015
Available online at
Article 15/ID/JPR25/09/ pages
Author(s) agree that this article remain permanently open access under the terms of the Creative Commons Attribution License 4.0 International License.

Original Research Article

Effect of substrates and doses of urea on growth and yield of an oyster mushroom (Pleurotus ostreatus) in greenhouse

Ndikumana Déo,* and Kanani Faustin

Department of Management and Development Studies, Faculty of Social Sciences, Management and Development Studies, Institut Polytechnique de Byumba (IPB), Rwanda.

*Corresponding Author Email: ndideo2006(at)
Tel. +250785534233

date Received: May 11, 2015     date Accepted: July 29, 2015     date Published: August 8, 2015


The present study proposes the objective of comparing the effects of four substrates and five doses of urea for the identification of best substrate(s) and optimum dose(s) of urea on growth and yield of an oyster mushroom (Pleurotus ostreatus). To achieve this objective, the study took place in Nyagisozi Sector. Two factors were studied; the first was substrates (Beans straw, maize cobs, penissetum and rice straw), the second factor was doses of urea (0g, 50g, 75g, 100g, 120g) which made a total of 20 treatments and 3 replications in experimental design of Randomized Complete Block Design. The observed parameters were number of mushroom per tubes, cap diameter, stem height and total yield of mushroom measured from August to October 2012 from three flushes. Results showed that the highest mushroom yield was observed with maize cobs substrates supplemented with 100 g of urea (1993 g/tube of spawn) followed by maize cobs substrates supplemented with 75 g of urea (1833 g/tube of spawn), beans substrates without urea (1800 g/tube of spawn) and substrates of beans straw supplemented with 120 g of urea got the lowest yield of 1350 g/tube of spawn. The highest cap diameter (18.43cm) and number of mushroom per tube (11.33) were observed also on maize cobs substrates supplemented with 100 g of urea. However, the highest height of stem (9.33cm) was observed on rice substrates supplemented with 75 g of urea. Therefore, according to the performance observed, these findings suggested that the recommended substrates are maize cobs substrates combined with 100 g of urea and beans substrates without urea, and could be associated to any other potential yielding substrates for the increase of the production of mushrooms

Key words: Substrates, doses of urea, growth and yield, Pleurotus ostreatus, greenhouse

Ndikumana and Faustin