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Enhancing sorghum (Sorghum bicolar L)-cowpea (Vigna unguiculata L.) intercrop productivity through row arrangements and orientation

Muwanga, S.; Tenywa, J. S.; Owuori, C.; Esele, P. and Woomer, P.L. (2005) Enhancing sorghum (Sorghum bicolar L)-cowpea (Vigna unguiculata L.) intercrop productivity through row arrangements and orientation. Paper at: Researching Sustainable Systems - International Scientific Conference on Organic Agriculture, Adelaide, Australia, September 21-23, 2005. [Unpublished]

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Summary

Currently there is a concern over use of agrochemicals, particularly regarding residual effects. Sorghum and cowpea are staple crops as well as income earners in Uganda, but low yields characterize their output. Limited research has been done to ameliorate this situation. This study was designed to improve the yields of intercropped sorghum and cowpea. Treatments included row arrangement (1:1 vs 2:2) and orientation (north south vs east west) and pure stands of both cowpea and sorghum. Parameters measured were dry matter and grain yield of intercrops, solar radiation interception, leaf area index and net benefits accruing from both intercrops. East west row orientation accesses greater light interception. Staggered row spacing boosted access to light by the cowpea understorey, leading to improve yield vis-à-vis an alternate row strategy. Finally, it is economically most beneficial to intercrop sorghum-cowpea in staggered double row arrangements.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Intercropping, sorghum, cowpea, row arrangement,row orientation
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Research affiliation: International Conferences > 2005: 1st ISOFAR Conference > 2005: 1st ISOFAR Conference
Related Links:http://orgprints.org/4013/, http://www.isofar.org/adelaide2005, http://orgprints.org/view/projects/int-conf-isofar-2005.html
Deposited By: ISOFAR,
ID Code:4337
Deposited On:15 Nov 2005
Last Modified:12 Apr 2010 07:30
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:The paper presented here is the final paper submitted by the authors to the conference Researching Sustainable Systems.
The final edited papers are available with the following publication:
Köpke, Ulrich; Niggli, Urs; Neuhoff, Daniel; Cornish, Peter; Lockeretz, Willie und Willer, Helga, (Hrsg.) (2005) Researching Sustainable Systems. Proceedings of the First Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), Held in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the National Association for Sustainable Agriculture, Australia (NASAA), 21 – 23 September 2005, Adelaide Convention Centre, Adelaide, South Australia.. Research Institute of Organic Agriculture FiBL, CH-Frick, and International Society of Organic Agriculture Research (ISOFAR), c/o Institute of Organic Agriculture (IOL), DE-University of Bonn. http://orgprints.org/4013/
Distribution: Paper copies may be ordered from FiBL at a cost of 28 Euros plus mailing costs (see FiBL shop at http://www.fibl.org/shop); FiBL order number 1394. A PDF version is available free of charge for ISOFAR members via the member area of www.isofar.org.

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