Division of Research and Development, Tanzania
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DIVISION OF RESEARCH AND DEVELOPMENT, TANZANIA DFID CROP PROTECTION RESEARCH PROGRAMME Increasing cereal productivity on Striga infested land and Planning for the promotion of improved crop protection in semi-arid areas A REPORT BASED ON THE PROCEEDINGS OF WORKSHOPS IN LAKE ZONE AND CENTRAL ZONE, TANZANIA - MARCH 2003 APRIL 2003 DIVISION OF RESEARCH AND DEVELOPMENT, TANZANIA DFID CROP PROTECTION RESEARCH PROGRAMME Increasing cereal productivity on Striga infested land and Planning for the promotion of improved crop protection in semi-arid areas A REPORT BASED ON PROCEEDINGS OF WORKSHOPS IN LAKE ZONE AND CENTRAL ZONE, TANZANIA - MARCH 2003 Edited by R. Lamboll1, C. Riches1 and A. Mbwaga2, 1Natural Resources Institute, University of Greenwich, UK 2Division of Research and Development, ARI Ilonga, Tanzania APRIL 2003 2 3 Preface Striga species, the so-called witchweeds, are widespread on the fields of small holder farmers in semi-arid areas of Eastern and Southern Africa. These noxious parasitic weeds principally attack and reduce the yield of finger millet, maize, sorghum and upland rice in these regions. In many areas it is the crops of resource-poor households, which are affected by these weeds. They impose an additional stress with which people, who have little capacity for investment in crop production, have to cope in an environment characterised by marginal rainfall for cropping and declining soil fertility. Since 1996 staff from the Department of Agricultural Research, and Sokoine University in Tanzania and, Natural Resources Institute and University of Sheffield in UK have been collaborating in studies aimed at developing integrated Striga management practices. Studies have been undertaken on-station and on infested farmers fields in affected communities in the Central, Eastern, Lake and Southern Highlands agricultural zones in Tanzania, with laboratory studies at the University of Sheffield. On-farm studies were implemented in collaboration with District Agricultural Extension. The work emphasised: • the farmer assessment of tolerant sorghum cultivars and cultural practices which reduce the impact of the parasite; • the development of learning tools which can provide farmers with a greater understanding of the Striga problem; • understanding the differential performance of sorghum cultivars under a range of levels of soil fertility; • the identification of traits which confer tolerance to Striga in maize; • farmer assessment of cultural practices which reduce the impact of Sriga in upland rice In addition to this research on Striga in Tanzania the Crop Protection Programme of the UK Department for International Development has supported work on a number of crop protection issues in semi-arid areas of East Africa. The programme has recently undertaken a review of this work, as a means of identifying opportunities for future promotion and research relating to a cluster of projects on cereals in the region. The overall aim of the review was to assess the role and contribution of cropping to people’s livelihoods in semi-arid E. Africa and identify the implications for CPP promotional opportunities and emerging research opportunities to address poverty. This report documents the outcome of two workshops that were held in Tanzania in March 2003. These brought together research, extension and NGO personnel to disseminate the findings from the Striga management project and to obtain the input of these stakeholders to the review and planning of DFID Crop Protection Programme funded activities in semi-arid areas of the country. The workshops were hosted and jointly organized by Mr Robert Tuni (ZRELO) in the Lake Zone and Mr N. Kiariro (ZRELO) in Central Zone. Their efforts made a major contribution towards the success of the workshops. We would also like to thank Mr C.J. Maganga (Lake Zone) and Mr Juma Kayeke (Central Zone) for very quickly and efficiently compiling a first draft of the workshop proceedings. This publication is an output from a research project, R7564 within the Crop Protection Programme, funded by the United Kingdom Department for International Development for the benefit of developing countries. The views expressed are not necessarily those of DFID. 2 CONTENTS Preface............................................................................................................................2 1. BACKGROUND .......................................................................................................4 2. WORKSHOP APPROACH.......................................................................................4 3. LAKE ZONE WORKSHOP......................................................................................4 4.CENTRAL ZONE WORKSHOP.............................................................................17 5. CONCLUSIONS AND WAY FORWARD ........................................................2727 ANNEX 1 Lake Zone Workshop…………………………………………………….29 ANNEX 2 Central Zone Workshop………………………………………………….58 ANNEX 3 Workshop presentations………………………………………………….78 3 1. BACKGROUND Since 1996, the Division of Research and Development and Sokoine University in Tanzania and Natural Resources Institute and University of Sheffield in UK have been collaborating on studies aimed at developing integrated Striga management practices. This research, funded by the UK Department of International Development Crop Protection Programme (CPP), has been undertaken on-station and on farmer’s fields in communities in the Central, Eastern, Lake and Southern Highlands agricultural zones in Tanzania, with laboratory studies at the University of Sheffield. On-farm studies have been implemented in collaboration with District Agricultural Extension. The current project comes to an in March 2003. CPP has recently funded a review of crop protection issues in semi-arid Tanzania, as a means of identifying opportunities for future promotion and research relating to a cluster of projects on cereals and legumes funded by the programme in semi-arid areas of E. African. The overall aim of the review was to assess the role and contribution of cropping to people’s livelihoods in semi- arid E. Africa and identify the implications for CPP promotional opportunities and emerging research opportunities to address poverty. The review has gone through three main steps: A one- day meeting of leaders of current projects in the cluster; a review of published and grey literature and consultations with a wide of range stakeholders. Working papers1 have been prepared and circulated. In order to disseminate the results of the Striga management project and explore the way forward for promotion of crop protection research outputs in semi-arid Tanzania, two-day workshops were held in Lake Zone and Central Zone in March 2003. The workshops provided an opportunity to present and verify the findings of the review and explore the way forward with a range of stakeholders for uptake of crop protection related research outputs, including recommended Striga management practices. The main section of this report summarises the outcome of the two workshops and makes recommendations for the way forward for the DFID Crop Protection Research Programme. The proceedings of the Lake Zone workshop, the Central Workshop and presentations are set out in the annexes. 2. WORKSHOP APPROACH The workshops were aimed at stakeholders involved in research and promotion. In Lake Zone participants included researchers from LZARDI, district extension service managers from Mara, Mwanza and Shinyanga regions and representatives from a number of NGOs offering agricultural support services in the zone. A similar group of stakeholders assembled for the CZ workshop and included researchers from Ilonga, Mpwapwa and Hombolo ARIs, extension staff from Singida and Dodoma regions and NGOs representatives. Resource persons, including facilitators were drawn from project partners and DRD Secretariat in Dar es Salaam. Workshop objectives 1. Disseminate the results of the Striga project in Lake Zone and Central Zone 1 Lamboll R. Sutherland A. Kavoi J.and Mwanga J.(2003) Review of crop protection issues in semi-arid East Africa, in the context of sustainable livelihoods: A working paper Lamboll R. And Mwanga J.(2002) Review of crop protection issues in semi-arid Tanzania, in the context of sustainable livelihoods: a working paper. NRI, UK/ DRD Tanzania 4 2. Validate the findings of a review of crop protection constraints and opportunities in semi- arid Lake Zone and Central Zone 3. Explore the way forward for the promotion of crop protection research outputs 4. Identify future crop protection research areas beyond 2005 Objective 1 Disseminate the results of the Striga project in Lake Zone This was based on presentations of key findings from on-farm, on-station and laboratory based research. The papers (see Programmes in Annex 1 and 2) covered the on-farm performance and farmer evaluation of two short duration sorghum varieties released as Hakika and Wahi, and recommendations on crop and soil management in relation to Striga control. Opportunities for use and promotion of varieties and associated management information were explored in stakeholder groups. A range of learning tools evaluated by the project to inform stakeholders of Striga biology and control were also presented and discussed. Objectives 2, 3 and 4 Validate the findings of the SAR; explore the way forward for the promotion of crop protection research outputs and identify future research areas. These were addressed on the second day of each