ISSN:
1573-0867
Keywords:
Nitrogen
;
urea
;
calcium ammonium nitrate
;
cropping density
;
N use efficiency
;
slow release
;
urease inhibitors
;
West Africa
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract An overview is provided of the N efficiency research conducted within the West African Fertilizer Management and Evaluation Network (WAFMEN). Factors such as N rate, mode of N fertilizer application and choice of N sources for different agroecological zones of West Africa are discussed in relation to crop yield response. The interactive effects of cropping density and rainfall on N efficiency and yield are examined with particular emphasis on production of millet in Niger. The potential role of new, slow-release fertilizers as well as urea amended with urease inhibitors is mentioned in relation to present and future fertilizer N requirements in West Africa.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01048986
