African Journal of Agricultural Research
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Article Number - 8C9C4E458388


Vol.11(18), pp. 1638-1645 , May 2016
DOI: 10.5897/AJAR2015.10339
ISSN: 1991-637X



Full Length Research Paper

Economic efficiency of green maize intercropped with beans grown under Tithonia and inorganic fertilizer



Joseph Nyamori Aguyoh*
  • Joseph Nyamori Aguyoh*
  • Department of Agriculture and Environmental Sciences, Rongo University College, Kenya.
  • Google Scholar
Esther Waithira Muturi
  • Esther Waithira Muturi
  • Department of Crops, Horticulture and Soils, Egerton University, Kenya.
  • Google Scholar
Arnold Mathew Opiyo
  • Arnold Mathew Opiyo
  • Department of Crops, Horticulture and Soils, Egerton University, Kenya.
  • Google Scholar







 Received: 24 August 2015  Accepted: 20 November 2015  Published: 05 May 2016

Copyright © 2016 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


A field trial aimed at assessing the performance of maize and beans under intercropped systems was conducted in 2013 under three experimental components of maize, beans and maize-bean intercrop in a randomized complete block design (RCBD) with three replications. Each component was subjected to treatments that included: a control-without fertilizer (WF), mineral fertilizer (MF) at 150 kg/ha of 17:17:17, Tithonia biomass (TDB) at 8 tons/ha and integrated application of MF and TDB comprising 4 tons/ha Tithonia and 100 kg/ha mineral fertilizer (MF/TDB). The MF/TDB produced 21.7% higher green maize yields than control, while MF and TDB produced 8.96 and 7.52% higher yields, respectively than the control. The land equivalent ratios (LER) were higher than one in all the intercropping plots, thus indicating an optimum exploitation of the environmental resources. Control plots showed the highest yield advantage in terms of LER of 1.70. When maize yield was converted to bean equivalent yield (BEY), the intercropping BEY was higher than the BEY in the sole for all fertilizer types, thereby revealing an agronomic advantage. The actual yield loss (AYL) values for maize indicated a yield gain of between 11.2 and 15.05% when MF and MFTDB were used in the intercropping compared to the sole cropping. Beans recorded yield loss in all the fertilizer types except in TDB which had a yield gain of 20.45%. The economic performance of the intercropping systems, affirmed that the most advantageous fertilizer type for maize was MF/TDB with an IA of 6.566.  The monetary advantage index (MAI) indicated a definite yield and economic advantage in maize-bean intercrop over their sole cropping, with integrated use of MF/TDB as nutrient sources being the most economical and advantageous fertilizer regime.

Key words: Economic efficiency, land equivalent ratio (LER), green maize, beans, intercropping advantage, monetary advantage index (MAI), Tithonia diversifolia.

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APA Muturi, E. W., Opiyo, A. M., & Aguyoh, J. N. (2016). Economic efficiency of green maize intercropped with beans grown under Tithonia and inorganic fertilizer. African Journal of Agricultural Research, 11(18), 1638-1645.
Chicago Esther Waithira Muturi, Arnold Mathew Opiyo and Joseph Nyamori Aguyoh. "Economic efficiency of green maize intercropped with beans grown under Tithonia and inorganic fertilizer." African Journal of Agricultural Research 11, no. 18 (2016): 1638-1645.
MLA Esther Waithira Muturi, Arnold Mathew Opiyo and Joseph Nyamori Aguyoh. "Economic efficiency of green maize intercropped with beans grown under Tithonia and inorganic fertilizer." African Journal of Agricultural Research 11.18 (2016): 1638-1645.
   
DOI 10.5897/AJAR2015.10339
URL http://www.academicjournals.org/journal/AJAR/article-abstract/8C9C4E458388

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