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 | 145 | 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 | 47 | 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 | 30 | 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 | 18 | 2020 |
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 | 12 | 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 | 12 | 2018 |
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 |
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 | 8 | 2022 |
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 | 6 | 2024 |
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 |
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 | 2 | 2021 |
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 |
Impact of allelochemicals from shade trees bark on the performance of cocoa seedlings J Danso, IK Boadu, J Sarkodie‐Addo, MO Opoku‐Agyeman, F Padi, ... Agrosystems, Geosciences & Environment 7 (3), e20543, 2024 | | 2024 |
A new phosphorus fertilizer blend enhances grain legume yield and profitability in northern part of Ghana S Adjei-Nsiah, J Ulzen Scientific African, e02273, 2024 | | 2024 |
Mitigation of greenhouse gas 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 Jørgensen, JS Kaba, K Twum-Ampofo, ... Soil Advances 1, 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 |
Can Solar-Powered Irrigation Systems Naturally Meet Crop Water Requirements? Proof of Concept from a Case Study in Sub–Saharan Africa E Oppong Danso, CA Dietzen, W Akortey, BK Boadi, PB Obour, ... Proof of Concept from a Case Study in Sub–Saharan Africa, 0 | | |