Despite the soundness of conservation <strong>agriculture</strong> principles in improving cropproduction, there are many challenges to overcome before conservation <strong>agriculture</strong>becomes a reality in Karatu. This case study documents experiences of conservation<strong>agriculture</strong> in Karatu District—its practices, achievements, challenges and gaps,and future prospects for it in the study area.2 Study objectivesGeneral objective• To develop a deeper understanding of the experiences of conservation<strong>agriculture</strong> in Karatu District.Specific objectives• To document the biophysical, socio-economic and institutional environmentof the study area• To give a history of conservation <strong>agriculture</strong>–related work together with anoverview of conservation <strong>agriculture</strong> adaptation, diffusion process and impact• To present gaps and challenges in conservation <strong>agriculture</strong> technologies• To document key issues in conservation <strong>agriculture</strong>, that is, labour, biomassmanagement and suitability of conservation <strong>agriculture</strong> under differentbiophysical conditions3 MethodThe Karatu case study began with the formation of a local case study team byintegrating representatives from the Selian Agricultural Research Institute (SARI),RECODA (Research, Community and Organizational Development Associates)and the agricultural department of the Karatu District Council (KDC). Briefingmeetings included training, discussion of the framework and questionnaires, andallocation of specific duties.Relevant institutions were identified as key sources of information, and a list wasdrawn up of the type of information each institution was expected to provide.Selection of institutions was based on their being involved in soil and waterconservation, agricultural input supply, or manufacture of agricultural implements,and in improving crop production through research and extension services. Amongthe institutions earmarked and visited were SARI, <strong>Tanzania</strong> Farmers’ ServiceCentre (TFSC), Heifer Project <strong>Tanzania</strong>, Karatu Development Agency (KDA),Ngorongoro <strong>Conservation</strong> Area Authority (NCAA), <strong>Tanzania</strong> Association ofForesters (TAF), Centre for Agricultural Mechanization and Rural Technology(CAMATEC), <strong>Tanzania</strong> Engineering and Manufacturing Design Organization(TEMDO), Nandra Engineering Moshi, Mazingira Bora Karatu (MBK), andCanadian Physicians for Aid and Relief. The institutions were visited to relate theiractivities with sustainable <strong>agriculture</strong> and conservation <strong>agriculture</strong> improvement inKaratu District.58 Ringo et al.
To get insight information on conservation <strong>agriculture</strong> technologies in Karatu,key informants interviewed were people responsible for improving <strong>agriculture</strong> andenvironment (conservation), farmers practising conservation <strong>agriculture</strong>, farmerswho once tried conservation <strong>agriculture</strong> and abandoned it, and those who chosenot to practise conservation <strong>agriculture</strong> even though they’d had the opportunity todo so. A key informant discussion was conducted mainly with selected extensionists,SARI staff, Karatu agricultural officers and leaders of the organizations facilitatingconservation <strong>agriculture</strong> practices.Focus group discussions and workshops were conducted with villagers and members offarmer field schools (FFSs). Focus group discussions were conducted in the villages ofArusha, Ayalabe, Gyeknu Getamock, Gyeknu Lambo, Kilimatembo, Mbulu Mbulu,Rhotia Kati, and Tloma. The focus groups in each village included village governmentmembers, sub-village leaders, and scores of any readily available ordinary villagers.Field sites to visit were identified to see the different conservation <strong>agriculture</strong>practices in situ. Observed practices include intercropping pigeon pea and maizeor sunflower, Dolichos lablab as a pure stand or intercropped with maize, contourcultivation, and agroforestry practices. Information was collected through discussionwith representatives from different stakeholders working to improve <strong>agriculture</strong>. Fieldobservations were made of individual small-scale farmers practising conservation<strong>agriculture</strong> and those not practising. In addition, large-scale farmers were visited:Gibsi Farm dealing with coffee production and agroforestry, and Msituni Farm.Photographs were taken to enrich the written information. All information anddata were brought together, synthesized, analysed and used to compile the report.The draft report was summarized and circulated to stakeholders.4 Background informationGeneral description of Karatu DistrictLocationKaratu is one of five districts in Arusha Region, located in the northern part of<strong>Tanzania</strong> (fig. 1). It became an administrative district in 1997. It is located south ofthe equator between latitudes 3°10'–4°00'S and longitude 34°47'E. Karatu Districtborders Mbulu District to the west, Ngorongoro District to the north, BabatiDistrict to the south-east and Monduli District to the east. It is the traditional hometo the Iraqw tribe. Other minor tribes are the Bardaigs, who are pastoralists, andthe Hadzabe, noted mainly as hunters and gatherers.Area of occupationThe district measures 3300 km 2 . Land use is classified as follows: arable land 102,573ha; pastureland 155,808 ha; forest, bush and tree cover 61,218 ha; and Lake Eyasi1060 ha. Karatu has 4 administrative divisions, 13 wards and 45 registered villages.The administrative headquarters in Karatu town. approximately 150 km west ofArusha town. It is an important stopover for most tourists heading for Ngorongoroand Serengeti National Parks.Karatu District 59
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ContentsPreface ...................
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Full conservation agriculture, howe
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February 2005, which made possible
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Table B. Key characteristics of cas
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Overemphasis on field-scale, techni
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Arumeru DistrictCatherine W. Maguzu
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8 Gaps and challenges .............
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Executive summaryA case study of co
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AbbreviationsARIAgricultural Resear
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1 IntroductionOver 80% of the peopl
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3 MethodMbeya was selected as a cas
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Table 1. Agricultural characteristi
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Three agricultural officers serve t
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egin until the first rains. Maize y
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Table 4. Conservation agriculture r
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slasher, machete and billhook (nyen
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Farmers were advised to slash the c
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technical support. Trial treatments
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In the latest FARM Africa project,
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Crop yieldsNineteen farmers in Wang
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Changes in costs and incomeThe aver
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• Farmers proposed that to improv
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10 Gaps and challengesDespite the s
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12 Recommendations• While some be
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Appendix 1 Selected farmer profiles
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No. Farmer name M/F Age(yrs)Fam ily
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Appendix 3Intervention detailsIniti
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Conservation agriculture technology
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Land degradation due to soil erosio
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Banana crop with mucuna as a cover
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Types of soil cover: lablab plus ma
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The pigeon pea crop has been left o
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Demonstrating conservation agricult
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Transferring crop residue for lives