Effect of crop rotation and nitrogen fertilization on yield and nitrogen efficiency in maize in the northern Guinea savanna of Nigeria
| dc.contributor.author | Yusuf A. A. | |
| dc.contributor.author | Iwuafor E. N. O. | |
| dc.contributor.author | Abaidoo R. C | |
| dc.contributor.author | Olufajo O. O. | |
| dc.contributor.author | Sanginga N. | |
| dc.date.accessioned | 2023-12-04T13:01:43Z | |
| dc.date.available | 2023-12-04T13:01:43Z | |
| dc.date.issued | 2009 | |
| dc.description | This article is Published by Academic Journal, 2009 and is also available at ISSN 1991-637X | |
| dc.description.abstract | Two crop rotation cycles were evaluated to determine the effect of cropping systems and N fertilization on the yield and efficiency of N in maize. Maize was grown on plots which had previously supported monocrops of two genotypes each of soybean (TGx 1448-2E and SAMSOY-2) and cowpea (IT 96D-724 and SAMPEA-7), natural fallow and maize. In a split-plot experimental design, three N fertilizer rates (30, 60 and 90 kg ha-1) and an unfertilized control were compared. On average, maize following legumes had higher grain yield of 1.2 and 1.3-fold compared with maize after fallow or maize after maize respectively. Similarly, legume rotation resulted in significant increase in total N uptake compared to continuous maize. In both years, N agronomic efficiency (AEN) and N fertilizer recovery efficiency (REN) of maize following grain legumes were on average 14 and 34% greater than of maize following maize and 12 and 20% greater than of maize following fallow respectively. On the other hand, all N efficiency indices except N physiological efficiency significantly decreased with increasing N levels. These indicate greater N use efficiency for the legume-rotation and poor efficiency for maize monoculture as well as the inefficiency of the current method of N fertilizer application. | |
| dc.description.sponsorship | KNUST | |
| dc.identifier.citation | African Journal of Agricultural Research Vol. 4 (10), pp. 913-921, October, 2009 | |
| dc.identifier.issn | 1991-637X | |
| dc.identifier.uri | https://ir.knust.edu.gh/handle/123456789/14593 | |
| dc.language.iso | en | |
| dc.publisher | Academic Journal | |
| dc.title | Effect of crop rotation and nitrogen fertilization on yield and nitrogen efficiency in maize in the northern Guinea savanna of Nigeria | |
| dc.type | Article |