September 2012

Drainage beyond maize root zone in an Alfisol subjected to three land management systems at Minna, Nigeria

  The objective of this experiment was to estimate drainage beyond maize rooting depth of 80 cm in relation to tillage and mulch by using Darcy Buckingham’s equation for unsaturated, one-dimensional, vertical flow. Three land management systems were investigated, namely; untilled-mulched, tilled-mulched and tilled-unmulched. The three treatments were replicated three times in a randomized complete block...

Author(s): A. J. Odofin, N. A. Egharevba, A. N. Babakutigi and P. C. Eze

September 2012

Biological nitrogen fixation in sole and doubled-up legume cropping systems on the sandy soils of Kasungu, Central Malawi

  Nitrogen is the most limiting element in Malawi soils with respect to crop production. However, grain legumes that are associated with biological nitrogen fixation are commonly grown in the country. Results are reported of a study on evaluation of the effects of sole cropped and doubled-up legume systems (legume-legume intercrop) on biological nitrogen fixation on the Ultisols of Kasungu district,...

Author(s): Keston Oliver Willard Njira, Patson Cleopus Nalivata, George Yobe Kanyama-Phiri and Max William Lowole