Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Elmar Schulte-Geldermann"'
Publikováno v:
Agrosystems, Geosciences & Environment, Vol 7, Iss 1, Pp n/a-n/a (2024)
Abstract Crop management through site‐specific fertility methods is crucial for both economic and environmental benefits. Potato‐specific fertilizer has not been fully established in Kenya, and the current fertilizer recommendation has been in pl
Externí odkaz:
https://doaj.org/article/81a450e9d8c943e4b5ee4f82c8e9c12c
Autor:
James N. Mugo, Nancy N. Karanja, Charles K. Gachene, Klaus Dittert, Harun I. Gitari, Elmar Schulte-Geldermann
Publikováno v:
Cogent Food & Agriculture, Vol 7, Iss 1 (2021)
Low nutrients have been reported in potato-growing areas of Kenya, prompting a need for nutrient management research. A study was designed to determine the effect of omitting nutrients on potato growth, yield and harvest index. On-farm nutrient omiss
Externí odkaz:
https://doaj.org/article/caaaa92f2e5e48c3aec9ac802b280c3e
Enhancing Climate Resilience of Rain-Fed Potato Through Legume Intercropping and Silicon Application
Autor:
Shadrack Nyawade, Harun I. Gitari, Nancy N. Karanja, Charles K. K. Gachene, Elmar Schulte-Geldermann, Kalpana Sharma, Monica L. Parker
Publikováno v:
Frontiers in Sustainable Food Systems, Vol 4 (2020)
A large portion of sub-Saharan Africa is situated in belts of uncertain rainfall and are characterized by low soil fertility with limited capacity to adapt to and mitigate the impacts of climate change. A field study was conducted in the semi-humid p
Externí odkaz:
https://doaj.org/article/4abdcb010f1a490c8a9576fa257f59ac
Autor:
Julius Juma Okello, Yuan Zhou, Norman Kwikiriza, Sylvester Ochieng Ogutu, Ian Barker, Elmar Schulte-Geldermann, Elly Atieno, Justin Taj Ahmed
Publikováno v:
Agriculture, Vol 6, Iss 4, p 55 (2016)
Potato yields in sub-Saharan Africa remain very low compared with those of developed countries. Yet potato is major food staple and source of income to the predominantly smallholder growing households in the tropical highlands of this region. A major
Externí odkaz:
https://doaj.org/article/db294a1f14fe4049bebe27956a96373e
Autor:
Nancy Karanja, Charles K. K. Gachene, James. N. Mugo, Klaus Dittert, Elmar Schulte-Geldermann
Publikováno v:
Agronomy Journal. 113:4793-4805
Publikováno v:
Root, Tuber and Banana Food System Innovations ISBN: 9783030920210
Poor access to healthy, high-yielding planting materials hampers potato production in East and Central Africa (ECA). The need to improve the quality and increase the quantity of seed potato available to farmers has been the basis of previous efforts
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9543d914c30d3cbaffe09c434791f8a
https://doi.org/10.1007/978-3-030-92022-7_13
https://doi.org/10.1007/978-3-030-92022-7_13
Autor:
Y. Xing, F. Beed, Danny L Coyne, P Lava Kumar, Mónica Carvajal-Yepes, Jan Kreuze, Karen A. Garrett, J. Kroschel, Kelsey F. Andersen, Guy Blomme, Jorge Andrade-Piedra, J.P. Legg, John F. Hernandez Nopsa, Gregory A. Forbes, Wilmer J. Cuellar, Kalpana Sharma, Monica Parker, Elmar Schulte-Geldermann
Publikováno v:
Bioscience
The geographic pattern of cropland is an important risk factor for invasion and saturation by crop-specific pathogens and arthropods. Understanding cropland networks supports smart pest sampling and mitigation strategies. We evaluate global networks
Autor:
Charles K. K. Gachene, Shadrack O. Nyawade, Elmar Schulte-Geldermann, Harun I. Gitari, Nancy Karanja, M. Parker
Publikováno v:
Nutrient Cycling in Agroecosystems. 117:43-59
Negative nitrogen balance represents a major factor causing low potato yield in potato growing areas of Kenya while its excessive surplus poses a significant environmental concern. In order to synchronize this tradeoff, a field trial integrating pota
Agronomic assessment of phosphorus efficacy for potato (Solanum tuberosum L) under legume intercrops
Autor:
Solomon Kamau, Nancy Karanja, Nyawade Shadrack, Elmar Schulte-Geldermann, Harun I. Gitari, Charles K. K. Gachene
Publikováno v:
Journal of Plant Nutrition. 43:864-878
Phosphorus (P) is an essential element and its efficient use is of global importance. This study evaluated the effect of growing potato under legume intercrops on P uptake and use efficiency indice...
Autor:
Harun I. Gitari, Shadrack O. Nyawade, M. Parker, Elmar Schulte-Geldermann, Nancy Karanja, Charles K. K. Gachene
Publikováno v:
Applied Soil Ecology. 142:123-135
Continuous cultivation of potato (Solanum tuberosum L.) in monoculture systems represents the greatest factor deteriorating soil organic matter (SOM) in smallholder farms. With an aim to breaking this norm, a 2-year field trial intercropping potato w