| Bradyrhizobium Inoculants Enhance Grain Yields of Soybean and Cowpea in Northern Ghana J Ulzen, RC Abaidoo, NE Mensah, C Masso, AAH AbdelGadir Frontiers in plant science 7, 1770, 2016 | 134 | 2016 |
| On-farm evaluation and determination of sources of variability of soybean response to Bradyrhizobium inoculation and phosphorus fertilizer in northern Ghana J Ulzen, RC Abaidoo, N Ewusi-Mensah, C Masso Agriculture, ecosystems & environment 267, 23-32, 2018 | 44 | 2018 |
| Biological inoculants for sustainable intensification of agriculture in sub-Saharan Africa smallholder farming systems C Masso, RW Mukhongo, M Thuita, R Abaidoo, J Ulzen, G Kariuki, ... Climate Change and Multi-Dimensional Sustainability in African Agriculture …, 2016 | 26 | 2016 |
| The tricot citizen science approach applied to on-farm variety evaluation: methodological progress and perspectives J Etten, E Abidin, E Arnaud, D Brown, E Carey, MA Laporte, ... RTB Working Paper, 2020 | 12 | 2020 |
| Combined application of inoculant, phosphorus and organic manure improves grain yield of cowpea J Ulzen, RC Abaidoo, N Ewusi-Mensah, C Masso Archives of Agronomy and Soil Science 66 (10), 1358-1372, 2020 | 10 | 2020 |
| Is there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers’ conditions? J Ulzen, RC Abaidoo, C Masso, EDJ Owusu-Ansah, N Ewusi-Mensah Applied soil ecology 128, 54-60, 2018 | 10 | 2018 |
| Organic manure improves soybean response to rhizobia inoculant and P-fertilizer in northern Ghana J Ulzen, RC Abaidoo, N Ewusi-Mensah, O Osei, C Masso, A Opoku Frontiers in Agronomy 2, 9, 2020 | 9 | 2020 |
| Soybean (Glycine max L. Merrill) responds to phosphorus application and rhizobium inoculation on Acrisols of the semi-deciduous forest agro-ecological zone of Ghana S Adjei-Nsiah, D Martei, A Yakubu, J Ulzen PeerJ 10, e12671, 2022 | 6 | 2022 |
| ASSESSING THE NEED FOR INOCULATION OF SOYBEAN AND COWPEA AT TONO IN THE KASSENA NANKANA DISTRICT OF THE UPPER EAST REGION OF GHANA J ULZEN KNUST, 2013 | 6 | 2013 |
| Optimizing legume-rhizobia symbiosis to enhance legume grain yield in smallholder farming systems in Ghana J Ulzen | 4 | 2018 |
| The tricot approach: an agile framework for decentralized on-farm testing supported by citizen science. A retrospective K de Sousa, J van Etten, R Manners, E Abidin, RO Abdulmalik, B Abolore, ... Agronomy for Sustainable Development 44 (1), 8, 2024 | 1 | 2024 |
| Growing media, water stress and re-watering effects on the growth and dry matter production of cocoa seedlings LO Mintah, GK Ofosu-Budu, NO Osei-Bonsu, J Ulzen, EO Danso Acta Universitatis Sapientiae, Agriculture and Environment 14 (1), 45-61, 2022 | 1 | 2022 |
| Native Rhizobia Strains Enhance Seed Yield of Groundnut Varieties in Northern Ghana G Wilson, J Ulzen, RC Abaidoo, A Opoku, S Adjei-Nsiah, O Osei Frontiers in Agronomy 3, 653044, 2021 | 1 | 2021 |
| Mitigation of greenhouse gas (GHG) emissions through shade systems and climate-smart soil fertility interventions in cocoa landscapes in the Semi-deciduous ecological zone of Ghana J Anokye, AA Abunyewa, U Jorgensen, JS Kaba, K Twum-Ampofo, ... Soil Advances, 100001, 2024 | | 2024 |
| Step-wise guide for weighing cocoa J Ulzen, J Etten | | 2021 |
| Cocoa trait rankings for tricot J Ulzen, B Ortiz-Crespo, J Etten | | 2021 |
| Soil Advances J Anokye, AA Abunyewa, U Jørgensen, JS Kaba, K Twum-Ampofo, ... | | |
Robert Clement AbaidooKwame Nkrumah University of Science and Technology, GhanaVerified email at knust.edu.gh
