Ulzen, J.*    

Firstname:J.* 
Surname:Ulzen 
Email: 
Institute:Kwame Nkrumah University of Science and Technology 
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11 publications (0 read)





Publications as Author



2024

Grafting experience and shade influences graft take of avocado scions, Ayarna, A. W.*, Adjei-Nsiah, S., Tsukagoshi, S., Ulzen, J.*, Sintim, H. O.*, Aduse Poku, S.*, Musah, B.* and Oduro, N. G.*, in: Philippine Journal of Science, volume 153, number 1, pages 113-120, ISSN 0031-7683, 2024.
 
A new phosphorus fertilizer blend enhances grain legume yield and profitability in northern part of Ghana, Adjei-Nsiah, S. and Ulzen, J.*, in: Scientific African, volume 25, number -: e02273, pages 1-15, ISSN 2468-2276, 2024. [DOI]
 

2022

Soybean (Glycine max L. Merrill) responds to phosphorus application and rhizobium inoculation on Acrisols of the semi-deciduous forest agro-ecological zone of Ghana, Adjei-Nsiah, S., Martei, D.*, Yakubu, S. A.* and Ulzen, J.*, in: PeerJ, pages 1-16, ISSN 2167-8359, 2022. [DOI]
 

2020

The tricot citizen science approach applied to on-farm variety evaluation: methodological progress and perspectives, van Etten, J., Abidin, E., Arnaud, E., Brown, D., Carey, E., Laporte, M. A., Lopez-Noriega, I., Madriz, B., Manners, R., Ortiz-Crespo, B., Quiros, C., de Sousa, K., Teeken, B., Tufan, H. A., Ulzen, J.* and Valle-Soto, J. F., RTB Working Paper. No. 2021-2. 27p., 2020. [DOI]
 
Organic manure improves soybean response to rhizobia inoculant and p-fertilizer in northern Ghana, Ulzen, J.*, Abaidoo, R., Ewusi-Mensah, N.*, Osei, O.*, Masso, C. and Opoku, A.*, in: Frontiers in Agronomy, volume 2, number -: 9, pages 1-10, 2020. [DOI]
 

2019

Combined application of inoculant, phosphorus and organic manure improves grain yield of cowpea, Ulzen, J.*, Abaidoo, R., Ewusi-Mensah, N.* and Masso, C., in: Archives of Agronomy and Soil Science, pages 1-15, ISSN 0365-0340, 2019. [DOI]
 

2018

Is there a need for Bradyrhizobium yuanmingense and B. japonicum reinoculation in subsequent cropping seasons under smallholder farmers' conditions?, Ulzen, J.*, Abaidoo, R. C.*, Masso, C., Owusu-Ansah, E. D.* and Ewusi-Mensah, N.*, in: Applied Soil Ecology, volume 128, pages 54-60, ISSN 0929-1393, 2018. [DOI]
 
On-farm evaluation and determination of sources of variability of soybean response to Bradyrhizobium inoculation and phosphorus fertilizer in northern Ghana, Ulzen, J.*, Abaidoo, R., Ewusi-Mensah, N.* and Masso, C., in: Agriculture, Ecosystems and Environment, volume 267, pages 23-32, ISSN 0167-8809, 2018. [DOI]
 

2016

Biological inoculants for sustainable intensification of agriculture in sub-Saharan Africa smallholder farming systems, Masso, C., Mukhongo, R. W.*, Thuita, M., Abaidoo, R., Ulzen, J.*, Kariuki, G. and Kalumuna, M., pages 639-658, chapter 33, Springer, ISBN 978-3-319-41236-8, 2016. [DOI]
 
Bradyrhizobium inoculants enhance grain yields of soybean and cowpea in Northern Ghana, Ulzen, J.*, Abaidoo, R. C.*, Mensah, N. E.*, Masso, C. and Abdelgadir, A. H., in: Frontiers in Plant Science, volume 7, pages 1-9, ISSN 1664-462X, 2016. [DOI]
 
Commercial rhizobia inoculants effect on grain yield of soybean and cowpea in Ghana, Ulzen, J.*, Abaidoo, R., Abdelgadir, A. H. and Masso, C., Abstract, p. 149, in the book of abstracts of the Pan-African Grain Legume & World Cowpea Conference, 28 February - 4 March, Livingstone, Zambia, 2016.