Digital Library
Close Browse articles from a journal
 
<< previous    next >>
     Journal description
       All volumes of the corresponding journal
         All issues of the corresponding volume
           All articles of the corresponding issues
                                       Details for article 45 of 80 found articles
 
 
  Minerals in Soils and Forages Irrigated with Secondary Treated Sewage Water in Sebele, Botswana
 
 
Title: Minerals in Soils and Forages Irrigated with Secondary Treated Sewage Water in Sebele, Botswana
Author: A.A. Aganga
S. Machacha
B. Sebolai
T. Thema
B.B. Marotsi
Appeared in: Journal of applied sciences
Paging: Volume 5 (2005) nr. 1 pages 155-161
Year: 2005
Contents: Production of forage using treated sewage water is a viable practice internationally. However, there is not much information on the heavy metal content of such forages. This study was conducted to determine the effect of sewage water on soils and forages irrigated with treated sewage water at Botswana College of Agriculture `s farm. The study was conducted for a period of 120 days using established forage pastures of rye grass (Lolium multiflorum) and lucerne (Medicago sativa). Heavy metals determined were Fe, Mn, Cu, Zn, Ni, Pb and Cd. Generally the treated sewage water contained relatively low levels of heavy metals. Zn, Ni and Mn concentration were below the detectable levels. In the sewage water while soils and plants had low levels of heavy metals. Comparatively the soil and plants heavy metal levels were much higher than those in the water and the difference was significant (p<0.05). There was some low correlation between trace element contents in the water and soil. In addition there was some significant difference (p<0.05) in heavy metal concentration in sewage water between the months during which the analyses were done. However, the sewage water, soils and forage mineral concentrations were within the internationally allowable heavy metal concentration with respect to irrigation, soil loadings and animal feeds.
Publisher: Asian Network for Scientific Information (provided by DOAJ)
Source file: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details for article 45 of 80 found articles
 
<< previous    next >>
 
 Koninklijke Bibliotheek - National Library of the Netherlands