Tamatamah, Rashid A.
Description:
The phosphorus sorption characteristics of eight surface soil samples representative of the land
use and landscape in the Simiyu and Kagera River basins were determined using the Langmuir
equation. The Langmuir P adsorption maximum (Cmax) ranged from 109 to 802 mg kg-1
, while
Langmuir coefficient (K) ranged from 59 to 736 mg L-1
. Cmax and were positively correlated to
clay content, aluminium (Al), and iron (Fe) and negatively correlated to calcium (Ca). By using
stepwise regression, the combination of Al, Fe, clay and Ca predicted more than 94% of the
variation in the P sorption capacity of soils samples from Simiyu and Kagera basins. These four
soil properties, which are strongly related to P sorption, could therefore be used as quick tests
for predicting the P sorption capacity of soils in the two basins