Assessing The Ability Of Two Soil Types In The Removal And Retention Of N And P Nutrients From Fish Pond Effluents.
Date
2004Author
Meso, BM
Wood, W
Karanja, NK
Woomer, PL
Kinyali, SM
Veverica, K
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Effectiveness of two soil types found at Sagana, Kenya, black clay soil (eutric Vertisol) and a red clay soil (chromic Cambisol), in retaining nutrients from pond effluent was investigated. A laboratory experiment was conducted with soil columns containing either of the two soils. Pond effluent application intensities of 31, 81 and161 mm day-1
were tested on both soils. Both soils retained over 60% of total P from pond effluents, with red clay retaining 27% more P than black clay. At the high effluent loading rate, low % N removal was observed in both soils. Total N removal efficiency declined with time after 21 days at the high rate, and after that time no N removal was observed where red
clay was used. Black clay was more enriched by N than red clay, while P enrichment was higher in red clay than in black clay. It appears that land application can remove
substantial amounts of P and N from pond effluent.
URI
http://profiles.uonbi.ac.ke/nancy/publications/bernard-muganda-meso-wes-wood-nancy-k-karanja-paul-l-woomer-s-mkinyali-and-karen-http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/49788
Citation
Assessing the ability of two soil types in the removal and retention of N and P nutrients from fish pond effluents. Tropical and Subtropical Agroecosys.Publisher
University of Nairobi Department of Land Resource Management and Agricultural Technology