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J. Hella · SciRah

Researcher profile · Semantic Scholar

J. Hella

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J. Hella — researcher profile on SciRah

h-index: 13
Works: 51
Citations: 962

Most-cited papers

Social and economic factors affecting the adoption of soil and water conservation in West Usambara highlands, Tanzania
A. J. M. Tenge, J. de Graaff, J. Hella
2004296 citations Open access
Semantic Scholar
Key Economic Sectors and Services
D. Arent, R. Tol, E. Faust, J. Hella +8 more
2014155 citations
Semantic Scholar
Financial efficiency of major soil and water conservation measures in West Usambara highlands, Tanzania
A. J. Tenge, J. de Graaff, J. Hella
2005111 citations Open access
Semantic Scholar
Ratification of the Ramsar convention and sustainable wetlands management: Situation analysis of the Kilombero Valley wetlands in Tanzania
F. Mombo, Stijn Speelmansup, G. Van Huylenbroeck, J. Hella +2 more
201165 citations
Semantic Scholar
The art of balancing food security: securing availability and affordability of food in Tanzania
R. Haug, J. Hella
2013Food Security62 citations
Semantic Scholar
The role of informal and semi-formal finance in poverty alleviation in Tanzania: Results of a field study in two regions
A. Kashuliza, J. Hella, F. Magayane, Z. S. Mvena
199841 citations
Semantic Scholar
Small scale farmers’ adaptation to climate change effects in Pangani River Basin and Pemba: challenges and opportunities
G. J. Sanga, A. Moshi, J. Hella
201326 citations
Semantic Scholar
Seed systems development to navigate multiple expectations in Ethiopia, Malawi and Tanzania
R. Haug, J. Hella, T. H. Mulesa, M. Kakwera +1 more
2023World Development Sustainability25 citations Open access
Semantic Scholar
High global food prices – crisis or opportunity for smallholder farmers in Tanzania?
J. Hella, R. Haug, I. Kamile
201121 citations
Semantic Scholar
Combining Climate Smart Agriculture Practises Pays Off: Evidence on Food Security From Southern Highland Zone of Tanzania
Abiud J. Bongole, J. Hella, K. Bengesi
2022Frontiers in Sustainable Food Systems19 citations Open access
Semantic Scholar
Factors for adoption of soil and water conservation in West Usambara highlands, Tanzania
A. J. M. Tenge, J. de Graaff, J. Hella
200319 citations
Semantic Scholar
Agro-investment in Africa - impact on land and livelihoods in Mozambique and Tanzania.
R. Kaarhus, R. Haug, J. Hella, J. Makindara
201015 citations
Semantic Scholar
Social ties, access to loans, and loan repayments in savings and loan associations: evidence from rural Tanzania
H. Pamuk, M. van Asseldonk, R. Ruben, Tumainiely Kweka +2 more
2021Agricultural Finance Review13 citations Open access
Semantic Scholar
National Agricultural Input Voucher Scheme Impact on Productivity and Food Security of Smallholder Farmers in Tanzania
Aloyce G. M., D. M. Gabagambi, J. Hella
201412 citations
Semantic Scholar
Climate Variability and Farm Technology Adoption Decisions among Smallholder Farmers in Pangani River Basin
A. Moshi, J. Hella, A. Isinika
201611 citations
Semantic Scholar
Characterization of Smallholders' Livestock Production and Marketing Strategies in Semi-Arid Areas of Tanzania
J. Hella, N. Mdoe, G. Van Huylenbroeck, L. D'haese +1 more
20019 citations
Semantic Scholar
Community-based approaches to support the anchoring of climate-smart agriculture in Tanzania
H. Pamuk, M. van Asseldonk, C. Wattel, S. K. Ng'ang'a +2 more
2022Frontiers in Climate8 citations Open access
Semantic Scholar
Small Farmers' Adaptive Efforts to Rainfall Variability and Soil Erosion Problem in Semiarid Tanzania
J. Hella, G. Van Huylenbroeck, M. Mlambiti
20036 citations
Semantic Scholar
Impacts of Climate Change on Maize and Beans Production and Compatibility of Adaptation Strategies in Pangani River Basin, Tanzania
G. J. Sanga, J. Hella, N. Mzirai, H. Senga
20145 citations
Semantic Scholar
Yield and Profitability of Cotton Grown Under Smallholder Organic and Conventional Cotton Farming Systems in Meatu District, Tanzania
T. Bwana, N. Amuri, E. Semu, J. Olesen +3 more
20204 citations
Semantic Scholar
Costs and benefits of climate-smart agriculture practices: Evidence from intercropping and crop rotation of maize with soybean in rural Tanzania
S. K. Ng'ang'a, M. Rivera, H. Pamuk, J. Hella
2020CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research)4 citations Open access
Semantic Scholar
Benefit-Cost Analysis of Alternative Insect Pests Management in Cashew and Mango Orchards in Tanzania
J. G. William, J. Hella, E. Lars, J. Offenberg +2 more
20154 citations Open access
Semantic Scholar
Economic analysis of rice legume rotation systems in Morogoro,Tanzania.
M. Kinyau, G. Ley, J. Hella, A. J. Tenge +2 more
20134 citations
Semantic Scholar
An Economic Comparison of Biological and Conventional Control Strategies for Insect Pests in Cashew and Mango Plantations in Tanzania
W. George, J. Hella, L. Esbjerg, M. Mwatawala +1 more
20134 citations
Semantic Scholar
Ex-ante Economic Impact Assessment of Green manure Technology in Maize Production Systems in Tanzania
J. G. William, J. Hella, M. Mwatawala
20124 citations
Semantic Scholar
Options to Increase Adoption of Lowland Rice - Legume Technologies in Morogoro, Tanzania
Albino Tenge, G. Ley, J. Hella, M. Kinyau +2 more
20133 citations Open access
Semantic Scholar
Input-output chain for smallholder maize growers in Muheza District, Tanzania. Survey report. Annex 4. In: Participatory evaluation of on-farm trials and review of progress: Muheza maize project - February 2003. Project Report No. 4. Ilonga Agricultural Research Institute, Tanzania.
V. Akulumuka, J. Hella
20033 citations
Semantic Scholar
Livestock production and poverty alleviation in Tanzania
N. Mdoe, J. Hella, F. Turuka
19983 citations
Semantic Scholar
Adaptation strategies of small-scale agriculture production to climate change impacts in Micheweni, Tanzania
M. Bakari, J. Abdallah, J. Hella
2019International Journal of Tropical Drylands2 citations Open access
Semantic Scholar
A Multicriteria Analysis of Agricultural Production Options for Sustaining Uluguru Mountains Natural Resource Base
J. Hella, A. Wamba
2019New Frontiers in Natural Resources Management in Africa2 citations
Semantic Scholar
Testing a new model combining micro-finance and farmer training to upscale the adoption of climate-smart agriculture practices by small-scale farmers in developing countries
H. Pamuk, M. van Asseldonk, Karl Deering, E. Girvetz +5 more
20182 citations
Semantic Scholar
The smallholder farming strategies in semi-arid Tanzania: the synergies between production efficiency and soil degradation problems
J. Hella, G. Van Huylenbroeck, L. D'haese
20072 citations
Semantic Scholar
Assessment of the Impact of Sustainable Land Use Practices on Food Security in West Usambara Mountains, Tanzania
E. Temu, J. Hella
20141 citations
Semantic Scholar
Soil fauna community structure across land manage ment systems of Kenya and Tanzania.
J. Hella, N. Karanja, F. Ayuke, A. Awiti +1 more
20071 citations
Semantic Scholar
Factors affecting development of international trade in livestock and livestock products in Tanzania under liberalized market economy
N. Mdoe, G. Ashimogo, E. Mbiha, J. Hella +1 more
19981 citations
Semantic Scholar
Contribution of livestock to cash income and income distribution in Tanzania: the case of Arusha and Kilimanjaro regions
G. Ashimogo, E. Mbiha, F. Turuka, M. Mlambiti +2 more
19981 citations
Semantic Scholar
Factors influencing farmers’ climate adaptation strategies in major rice-growing regions in Tanzania
Beatrice Ndosi, J. Hella, Ntengua Mdoe
2026African Journal of Empirical Research0 citations Open access
Semantic Scholar
Comparative Analysis of Cashew Farmers' Perceptions of Institutional Performance under Contract Farming and Warehouse Receipt Systems in Mkuranga District, Tanzania
Ezekiel Isidor Lyimo, J. Hella, S. Hokororo
2026Journal of Agribusiness and Rural Development0 citations Open access
Semantic Scholar
Factors Influencing Cashew Farmers' Marketing System Choice Between Contract Farming and Warehouse Receipt Systems in Mkuranga District, Tanzania
Ezekiel Isidor Lyimo, J. Hella, S. Hokororo
2025Journal of Agriculture and Rural Development Studies0 citations Open access
Semantic Scholar
Assessing impact of climate change on maize production in Tanzania: Inter-regional analysis
Sarah Nibitangaza, H. Tandane, Nicetus Seluhinga, J. Hella
2025African Journal of Empirical Research0 citations Open access
Semantic Scholar
Investment Decisions and Gender in Agricultural Households: Evidence from Lab-in-the-Field Experiment in Rural Tanzania
M. Keenan, H. Pamuk, S. K. Ng'ang'a, J. Hella
2021Research Papers in Economics0 citations
Semantic Scholar
Community-based finance and Climate-Smart Agriculture
J. Recha, M. Radeny, M. Ndagijimana, C. Kessler +14 more
20190 citations
Semantic Scholar
CSA/SuPER - Upscaling CSA with small-scale food producers organised via VSLAs: Financing for adoption, behavioural change and resilience in rural Iringa Region, Tanzania
E. Girvet, J. Hella, S. Karanja, Thabit Masoud +2 more
20170 citations
Semantic Scholar
The art of balancing food security: securing availability and affordability of food in Tanzania
R. Haug, J. Hella
2013Food Security0 citations
Semantic Scholar
Participatory market Saharan Africa: Evidence pathway from
J. Hella, T. Chilongo, J. Bokosi, V. Kabambe
20130 citations
Semantic Scholar
Appendix 1 Land tenure systems and agricultural technology uptake by smallholder rice farmers in Kyela district , Tanzania
J. Hella, N. Kibanda, C. Riches, J. Kisaka +1 more
20060 citations
Semantic Scholar
Enhancing productivity of upland rice on Striga infested soils in Kenya and Matombo: some finding of socioeconomic baseline study. Working Paper No. 6. ARI Ilonga, Kilosa, Tanzania. 24 pp.
J. Hella, A. Mbwaga
20040 citations
Semantic Scholar
Achievements in 2004 season on promotion of green manure to increase soil fertility and control of striga in Kyela and Matombo districts - Tanzania.
J. Hella, A. Mbwaga, G. Ley, C. Riches +4 more
20040 citations
Semantic Scholar
Maize storage practices, a case study in Muheza District, 2003. Annex 2. In: Participatory evaluation of on-farm trials and review of progress: Muheza maize project - February 2003. Project Working Paper No. 4. Ilonga Agricultural Research Institute, Tanzania.
J. Hella, V. Akulumuka, P. K. Kyakisho, F. P. Marosso
20030 citations
Semantic Scholar
DEVELOPMENT OF AN IMPROVED METHOD FOR SOIL AND WATER CONSERVATION PLANNING AT CATCHMENT SCALE IN THE EAST AFRICAN HIGHLANDS PROGRESS REPORT
G. Ley, J. Hella, J. Mowo, O. Vigiak +3 more
20020 citations
Semantic Scholar

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