Welcome to SUAIRE
Sokoine University of Agriculture Institutional Repository (SUA IR). This repository was built and is maintained by the university library (Sokoine National Agricultural Library-SNAL) , in order to collect, preserve and disseminate scholarly output generated by University research community (staff and students) members.
This repository hosts a variety of openly accessible materials including: scholarly articles and books, theses and dissertations, conference proceedings and technical reports. For assistance about depositing your research output in the repository click here. SUA IR Policy click here or any queries contact us at snal@sua.ac.tz.
Communities in SUAIRE
Select a community to browse its collections.
- The Agroforesty Community is a collaborative network dedicated to advancing sustainable land-use practices that integrate trees, crops, and livestock. It serves as a platform for knowledge exchange, research dissemination, and practical innovations in Agroforestry. By fostering connections among researchers, practitioners, policymakers, and local communities, the Agroforestry Community promotes environmental conservation, enhanced agricultural productivity, and resilient livelihoods.
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Recent Submissions
Combining biochar with low rate of chemical fertiliser boosts maize biomass yield, regardless of tillage system, under humid conditions
(jarts, 2019) Kiobia, Denis Olgen; Graef, Hannah A; Reuben, Paul; Kahimba, Frederick Cassian; Graef, Frieder; Eichler-Löbermann, Bettina; Silayo, Valerian C.K.
Biochar application to soils increases biomass and crop yields, especially with rates higher than 100 t ha −1 . Yet, there
is limited knowledge on the combined effect of biochar and chemical fertiliser under different tillage systems. The
objective of this study is to investigate the effect of maize-cob biochar (BC) (rates of 5 and 10 t ha −1 ) combined with
chemical fertiliser micro-dosing (MD) at a rate of 25 % of the recommended quantity on total shoot dry matter (DM)
and plant height of maize cultivated under flat (F) and tied-ridge (R) practices during a humid season in Tanzania. The
results indicate that combining 5 t ha −1 BC with 25 % MD increases DM at harvest by 83 % (4.16 t ha −1 ) compared
to the control (2.27 t ha −1 ) and was in the same range as the DM obtained from the treatment with the recommended
fertiliser rate (100 % FD). The treatments with single applications of 25 % MD, 5 t ha −1 BC, and 10 t ha −1 BC only
tended to exceed the control of DM yield. Therefore, we recommend that small-scale farmers aiming at DM for
livestock or grain yield with limited access to chemical fertilisers to combine biochar with 25 % MD, rather than
applying biochar or low chemical fertiliser rates alone.
The efficacy of crude extract of aloe secundiflora on candida albicans
(Msoffe and Mbilu Afr. J. Trad. CAM, 2009) Peter L. M; Mbilu, Z. M
In- vitro studies on the efficacy of crude extracts of Aloe secundiflora on Candida albicans was conducted.
Five mature leaves of Aloe secundiflora were collected and the crude extract was prepared, then autoclaved. The
extract was then tested on Candida albicans grown on solid media. The results from these studies revealed complete
inhibition of Candida albicans growth caused by Aloe secundiflora crude extract on solid media. The findings from
this study suggest that the crude extract of Aloe secundiflora can inhibit the growth of Candida albicans. Further
studies are required to establish the in-vivo activity of the crude extract, the active ingredient, dosage and safety of
Aloe secundiflora, before recommending for clinical use.
Effect of crude root extract from Synadenium glaucescens on selected bacterial infections in albino mice (Mus musculus)
(2014) R. A. Max; C. Mwageni; G. G. Bakari
The contribution of wetland ecosystem to community livelihoods: the case of Kilombero district, Tanzania
(Sokoine University of Agriculture, 2011) Luhanga, Sarah
This dissertation set out to examine the contribution of Kilombero wetlands ecosystem on
the livelihoods of adjacent communities. Field survey was conducted in three villages,
namely Msolwa Ujamaa, Lungongole and Mkula in the Kilombero district. Statistical
analysis and contingent valuation methods were used determine the importance of the
wetland on social economic life of the communities, community dependence on the
wetland and community action to conserve the wetland. The total sample of 105 heads of
the household was randomly drawn to respond to the household level questionnaire and
selected elders and village leaders participated in the focus group discussions. Major
findings of this dissertation are that, the Kilombero wetland provides substantial benefits
to the adjacent communities. The availability of water, fertile land and good infrastructure
has supported high paying commercial farming activity of rice and sugar cane. Average
income levels are very high compared to other areas in Tanzania. The willingness to pay
to conserve the wetland is also high reaching about 40 000 Tanzanian shillings annually
which imply a high level of valuation. Further findings are that, wetland resources have
significant contribution to the livelihood of the local communities adjacent to the
wetlands. Wetland agriculture is the main livelihood activity for more than 86.7% of the
wetland adjacent communities. However about 83.8% of the people in Kilombero
wetlands acknowledge their income solely depend on wetland resource. The study
concluded that, communities living adjacent to Kilombero wetland value the ecosystem
for their livelihood. Study draw number of recommendations including; the diversification
activity; Need to ensure that there existed community wetland conservation programmes
at the village level; Operational technical advices, through researchers and or ward/ village
agriculture extension officers, should be up-scaled in timely and appropriate manner.
of the community activities in order to reduce the extent of the people engaging in one activity; Need to ensure that there existed community wetland conservation programmes
at the village level; Operational technical advices, through researchers and or ward/ village
agriculture extension officers, should be up-scaled in timely and appropriate manner.
The effects of human disturbances on diversity and dynamics of eastern Tanzania miombo arborescent species
(University of the Witwatersrand, Johannesburg, 2000) Luoga, Emmanuel Joachim
This interdisciplinary study makes comparisons between patterns of woody resource
abundance (stocks) under contrasting management regimes and describes the effects
of human disturbance on plant diversity and population dynamics of miombo
woodlands. Socio-economic data were collected from two sampled villages
surrounding the Kitulanghalo Forest Reserve in eastern Tanzania, about 150 km west
of Dar-es-Salaam. Biophysical data were collected from sixty-four modified-
Whittaker nested plots in the reserve and surrounding public lands. Use was also
made of the data from permanent sample plots and aerial photographs & landsat
images.
The ethnobotanical and utilisation survey indicated that major uses of woody
species were for charcoal production (the main commercial activity in the area),
firewood, medicine and poles. Commercial production of charcoal results in local
wood consumption of 6.01 nf capita'1 year'1 compared to subsistence firewood
consumption of only 1.5 m3 capita'1 year'1. Shifting cultivation is practiced by 68%
of the population. The present level and pattern of harvesting are changing the
structure and composition of the vegetation, especially in public lands and are not
sustainable. However, the heavy wood utilisation in public lands has minimal effect
on floristic composition as indicated by a high Sorensen’s similarity of 87.7%
between the reserve and public lands.
Multivariate analysis indicated that the linear combinations of physiographic
variables (most of which are associated with human disturbance) significantly
influence the pattern of tree harvesting, and species composition at the community level. The decrease in plant density through harvesting or self-thinning (natural
mortality) in public lands is accompanied by enhanced wood productivity, hence
growth rates were higher in public lands compared to the reserve. Ninety percent of
harvested woody species in public lands resprouted hence management under coppice
rotation as a silvicultural system is recommended.
Common property regimes and local institutional capacities are weak and need
to be strengthened before local people are given the full responsibility of managing
the public lands and assisting in policing the forest reserve. This calls for government
institutions to provide and motivate for an enabling environment in order to ensure
equity and sustainable development of natural resources.