Research Achievements

SUA has been undertaking research in farming systems, intercropping, agroforestry, dairy goat improvement, bovine parasitic otitis, tick and tick borne disease control and identification and control of helmintic diseases of livestock and poultry, studies on epidemiology of CBPP and TB, and in crops. From these research undertakings a number of achievements have been recorded. For example, SUA's bean improvement project has released high yielding varieties like SUA 90 and ROJO, which have a lot of potential in smallholder bean production systems. SUA has made improvements in the production systems for vegetable crops and dairy goats and cattle in highland areas with land scarcity. SUA has also contributed towards improving the delivery of extension services in Morogoro and other regions through various extension and outreach programmes.


Other achievements in areas of applied, product development and technology transfer research include:

Identification of rice varieties which are resistant to Rice Yellow Mottle Virus (RYMV).
Identification of lesser known hardwood tree species that reduce harvesting pressure on the traditional hardwood species now threatened with extinction.
Mapping out the spatial distribution of important diseases of livestock in the country including the devastating lung sickness (CBPP) of cattle, Bovine tuberculosis.
Introduction of heat resistant vaccine against Newcastle, a killer epidemic of rural chickens.
Development of technologies for removal of toxic cyanogenic compounds from cassava by sun drying and water soaking.
Selection and breeding of sweet potato cultivars that are resistant to sweet potato weevil.
The use of local farmers knowledge as an effective complement to the classical scientific methods on classification farm soil, classification of landforms and land use. The approach has proved useful in optimising land use, conservation efforts and crop yields especially in the rural areas of the Kwimba, Misungwi (Lake zone),Mbulu and Karatu.
Strengthening of non-agricultural activities as a tool for alleviation of rural poverty.
Integrated biosystems for small holder farmers involving recycling of animal wastes, introduction of nitrogen fixing trees like Gliricidia sepium in agrosilvopastoral system that has proved effective in the intensification of zero grazing system of livestock production.
Intercropping as a way of controlling crop pests, where the maize-cowpea intercropping has resulted in higher crop yields than has been the case for monocultures.
Community based management of forests, a practice that has proved useful in the conservation of the diversity of indigenous medicinal plants.
Database development for hardwood plantations in Tanzania.
Establishment of the insect diversity and abundance in Mazumbai Forest reserve as a source of baseline data in the unique ecosystem.
Plant domestication in East Usambara as a technique to enhance biodiversity conservation and releasing cropping pressure on natural forests.
Identification and control of bacterial contaminants in food of animal origin.
Characterization of variant forms of rabies in domestic animals.
Improvement of production and management of rural chickens as a tool that has contributed significantly to alleviation of poverty in rural areas.
Using vascular permeability antagonists in the management of pulmonary oedema (accumulation of water in the lungs) as a method of reducing ECF related mortality losses in cattle.
Tapping fetal Oocytes as a resource for optimising on embryo transfer techniques in cattle production.
Development and application of local microbial strains in the detoxification and degradation of cyanide in cassava. Where Bacillus spp, Lactobacilus spp, Corynebacteria spp. Candida spp and Aspergillus spp potentially useful for the purpose have been isolated.
Variety improvement of rice through mutation breeding at SUA.
Improving the fruit yield of pawpaws by inducing artificial branching at an early stage of plant growth.
Development of new bean seed varieties i.e. SUA 90 and ROJO
Sweet potato slicer that has improved sweet potato processing and drying, thereby cutting down on seasonal heavy sweet potato losses that do otherwise occur
Development of extracts of medicinal and insecticidal value from the Neem. This includes preparations against some parasitic helminthes of domestic animals and repellents/insecticide against fleas and tsetse flies.
Application of PCR and DNA probes in characterization and diagnosis of Trypanosomosis in cattle.
Extraction of juice from sweet potato and other non traditional juice fruits.
Tempe: An inexpensive weaning/supplementary feed developed by bioenrichment of techniques using local, underutilized legumes, oil seeds and cereals.
Fabrication of a pilot model of an in-plastic sachet pasteurization unit for small scale milk processing, a technique that promises to increase shelf life of milk at room temperature.
Development of an incubator/hatcher powered by biomass energy such as heat from combusted rice husks, saw dust and dried animal dung.
Introduction of oxen in plantation forests for skidding logs. This has resulted in minimum environmental damages, use of locally available resources and creating employment for rural people.
Rainwater harvesting to boost production in semi arid areas
Introduction of Dairy goats in rural areas which has resulted in improved nutrition, household income and food security for small-holder farmers
Improvement of crop residues to serve as source of animal feed especially for the dry season in rural and peri-urban areas. Where for instance wood ash on stover has been shown to significantly improve the nutritive value of maize stover.
Introduction of planted multipurpose tree/shrubs in rural areas, an innovation that has resulted in better soil conservation practices, improved fertility, as well as more food and wood for resource poor farmers.
Agroforestry practices using short fallows of planted trees/shrubs and relay cropping technologies as alternative to traditional shifting cultivation in semi arid areas. The innovation has resulted in improved soil fertility and increased crop yields. At Gairo in Morogoro rural district, the use of Tephrosia spp, Cajanus cajan, Gliricidia and Sesbania sesban tree shrubs has increased maize yields up to 4.4 tons per hectare.
Improvement of dairy production and management through artificial insemination practices and farmer managed mastitis control practices.
Tie ridging as a rainwater harvesting technique that has improved crop yields in semi-arid areas of central Tanzania.
Adoption of the Ngoro farming system of the Matengo as a technique for soil conservation and soil fertility management in Uluguru Mountains.
Fish farming along streams of the Uluguru mountains. The method has improved household food security and income in some villages in Morogoro rural district.
Use of planted trees/shrubs like Leucaena leucocephala, Morus alba and Clotaralia spp as a source of protein supplement for domestic animals.
Use of elephant grass in the control of soil erosion in Kondoa, a practice that has proved effective in sand river stabilization.
Identification, evaluation and utilization of natural forages in Mbinga highlands.
Use of draught animals for hauling agricultural farm inputs and farm products to the market.