Nielsen, O.    

Firstname:O. 
Surname:Nielsen 
Email: 
Institute:IITA 
Homepage: 
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8 publications (0 read)





Publications as Author



2007

Promoting integrated management practices for speargrass (Imperata cylindrica (L) Raeusch.) in soybean, cassava and yam in Nigeria, Chikoye, D., Ellis-Jones, J., Avav, T., Kormawa, P., Udensi, U., Tarawali, G. and Nielsen, O., in: Journal of Food, Agriculture and Environment, volume 5, number 3&4, pages 202-210, 2007.
 

2006

Farmers' perceptions of the speargrass (Imperata cylindrica) problem and its control in the lowland sub-humid savannah of Nigeria, Chikoye, D., Ellis-Jones, J., Tarawali, G., Kormawa, P., Nielsen, O., Ibana, S. and Avav, T., in: Journal of Food, Agriculture and Environment, volume 4, number 3 & 4, pages 118-126, 2006.
 

2005

Efficacy and costs of handheld sprayers in the subhumid savanna for cogongrass control, Nielsen, O., Chikoye, D. and Streibig, J., in: Weed Technology, volume 19, number 3, pages 568-574, ISSN 0890-037X, 2005. [DOI]
 

2003

Scaling up the use of improved Imperata management practices in the subhumid savanna of Nigeria, Ellis-Jones, J., Power, J., Chikoye, D., Nielsen, O., Kormawa, P., Ibana, S., Tarawali, G., Udensi, U. and Avav, T., in: Paper presented at: The 2003 Brighton Crop Protection Conference: weeds: proceedings of an International Conference: 17-20 November, Brighton, England, 2003.
 
Reducing speargrass (Imperata cylindrica) with conservation agriculture involving farmers in research to reduce labor and herbicide use and to conserve yields, Nielsen, O., Manyong, V., Ellis-Jones, J., Streibig, J. and Chikoye, D., in: Paper presented at: 6th Biennial Conference of the African Crop Science Society; 12-17 October, Nairobi, Kenya, 2003.
 

2002

A participatory appraisal of Imperata management strategies for sustainable land use in the subhumid savanna of Nigeria, Kormawa, P., Ellis-Jones, J., Ibana, S., Schulz, S., Nielsen, O., Douthwaite, B. and Udensi, U., in: Paper presented at: Conference on Challenges to organic farming and sustainable land use in the tropics and subtropics, 9-11 Oct, University of Kassel, Witzenhausen, Germany, 2002.
 
GPS-based transect walks for quantifying Imperata cylindrica in East Nigeria, Van der Meer, F., Nielsen, O., Omitogun, A. and Alabi, T. R., in: Paper presented, Abuja, Nigeria, 2002.
 

Publications as Editor

2002

Analysis of herbicide dose response bioassays using non-linear mixed modelling, Nigerian Institute for oil Pal Research,, 2002.