African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6559

Table of Content: January 2007; 2(1)

January 2007

Biomass and nitrogen accumulation by green manure legumes as affected by phosphate rock in submerged soils

Lowlands in West Africa are increasingly absorbing the growing pressure on land for food crop production. However, the current intensification of lowland cropping systems result in the mining of soil nutrient reserves, particularly of nitrogen (N) and phosphorus (P). While N can be supplied via biological N fixation (BNF) by legumes, P deficiency frequently limits both food crop growth as well...

Author(s): Eklou A. Somado and Kanwar L. Sahrawat

January 2007

Economic evaluation of soil fertility management options on cassava-based cropping systems in the rain forest ecological zone of south western Nigeria

This study was carried out to determine the economic viability of fertility management options in  cassava based cropping systems. Data were obtained from an on-station agronomic trial carried out  in 1995 and 1996 in the rainforest agro-ecological zone of south western Nigeria. Economic evaluation  was carried out using partial budget and Marginal Rate of Return (MRR) Analyses. The result...

Author(s): Makinde, E. A., Saka, J. O. and Makinde, J. O.   

January 2007

An assessment of use of radio in agricultural information dissemination: a case study of radio Benue in Nigeria

This study investigated the use of radio as a medium of agricultural information delivery to farmers in  Benue State, Nigeria. The objective was to determine the impact of radio agricultural programmes on  the target audience (farmers). The data were collected from a sample of one hundred respondents  selected through a simple random sampling technique. The data were analyzed with...

Author(s): O. J. Okwu, A. A. Kuku and J. I. Aba   

January 2007

Effect of plastic mulch on economizing irrigation water and weed control in baby corn sown by different methods

Field experiments were conducted during the winter season of 2003 -04 and 2004 -05 to determine the  effect of mulch in relation to irrigation and planting method on soil temperature, weed control, baby  corn growth, water use and yield. The study revealed that bed planting of baby corn caused 34.9%  increase in yield over ridge planting method. Plastic mulch increased baby corn yield by 18.9%...

Author(s): Gulshan Mahajan, Rakesh Sharda, Ashwani Kumar and K.G. Singh

January 2007

Evaluation of some bacterial isolates as germination stimulants of Striga hermonthica

To investigate the role of Pseudomonas sp., Klebsiella oxytoca and Enterobacter sakazakii in Striga  hermonthica seed germination, we have used two varieties of sorghum to test over time for the selected  bacteria, using GR-24, a synthetic strigol analogue as a standard and water as a check. Sorghum seeds  coated with a mixture of bacterial cells (5 x 107cfu ml-1) from 24 h old cultures were...

Author(s): O. O. Babalola, D. K. Berner and N. A. Amusa

January 2007

The comparative toxicities of cadmium, copper and lead to Macrobrachium rosenbergii and Penaeus monodon postlarvae

Comparative acute toxicity tests were carried out with three heavy metals viz. cadmium, copper and  lead on giant prawn (Macrobrachium rosenbergii) and tiger prawn (Penaeus monodon) post larvae.  Lethal concentrations at which 50% of the shrimp died (LC50) at 96 h were 3.23 mg/l Cd, 3.02 mg/l Cu  and 10.0 mg/l Pb for M. rosenbergii; 2.91 mg/l Cd, 2.16 mg/l Cu and 7.28 mg/l Pb for P. monodon....

Author(s): Fafioye, O.O. and  Ogunsanwo, B.M.