Assessment of zinc and copper status in soils of the central part of Sokoine University of Agriculture farm, Morogoro, Tanzania

Simple item page
dc.contributor.authorGideon, Ngerageza Faraja
dc.date.accessioned2026-02-03T06:25:26Z
dc.date.available2026-02-03T06:25:26Z
dc.date.issued1999
dc.descriptionDissertation
dc.description.abstractA study was conducted to assess the zinc and copper status in the soils of the central part of Sokoine University of Agriculture (SUA) farm. Twelve soil samples were collected from selected areas in the farm. Zinc and copper in these soils was extracted with four extractants namely 0.005M DTPA-TEA (pH 7.3), 0.005 DTPA-AB (pH 7.3), double acid (0.05M HC1 + 0.0125M H2SO4) . 0.1M HC1 and Two soils (Oxic Haplustult and Typic Rhodustult) out of the twelve soils were used for glasshouse experiment determine to response of beans (Phaseolus vulgaris) to zinc and copper zinc and application. The soils were each treated with copper at the rates of 0, 2.5, 5 and 10 Kg/ha. the Zinc application generally increased the dry matter yield plants in dry matter yield) was both soils. The increases of bean significant when compared to the dry matter yields of the controls. Copper application increased dry matter yield in the Oxic Haplustult where there were positive response to copper application. However negative response (decrease in observed in the Typic Rhodustult. Zinc and copper tissue- concentrations in bean shoots and were their uptake were significantly increased in both soils by the application of zinc and copper. However, the tissue zinc and copper concentrations observed were rather high and above the critical concentrations reported in the literature. Of the four extractants tested, 0.005M DTPA TEA was found most suitable for assessing the available zinc in the soils since it gave significant correlations with plant parameters (dry matter yield, tissue zinc concentrations and zinc plant uptake). The 0. IM HC1 was the second in suitability. However, none of the methods was found to be suitable for the extraction of copper in these soils.
dc.description.sponsorshipThe Norwegian Agency for Development Cooperation (NORAD)
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/20.500.14820/7275
dc.language.isoen
dc.publisherSokoine University of Agriculture
dc.subjectZinc
dc.subjectCopper
dc.subjectSoils
dc.subjectMorogoro
dc.subjectAgriculture
dc.subjectTanzania
dc.titleAssessment of zinc and copper status in soils of the central part of Sokoine University of Agriculture farm, Morogoro, Tanzania
dc.typeThesis

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
GIDION,Ngerageza Faraja.pdf
Size:
3.04 MB
Format:
Adobe Portable Document Format
Description:
Dissertation
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Soil Science Collection