Response of potato crop to selected nutrients in central and eastern highlands of Kenya
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 omission trials were set during the long rains (LR) and...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Informa UK Limited
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/114719 |
| _version_ | 1855525404576579584 |
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| author | Mugo, J. Karanja, N. Gachene, C.K.K. Dittert, K. Gitari, H.I. Schulte-Geldermann, Elmar |
| author_browse | Dittert, K. Gachene, C.K.K. Gitari, H.I. Karanja, N. Mugo, J. Schulte-Geldermann, Elmar |
| author_facet | Mugo, J. Karanja, N. Gachene, C.K.K. Dittert, K. Gitari, H.I. Schulte-Geldermann, Elmar |
| author_sort | Mugo, J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | 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 omission trials were set during the long rains (LR) and short rains (SR) of 2016 in which the treatments involve the judicious omission of N, P, K, S and B. Additional two treatments were included with one receiving all the nutrients and a control where no nutrients were added. The treatment was laid in a randomized complete block design with three replications. Potato yields reduced by 6.6 and 11.2 t ha−1 in N-omitted treatments in LR and SR, respectively, when compared to the one receiving all the nutrients, while omitting P resulted in respective yield reductions of 3.8 and 2.0 t ha−1. Stability analysis revealed that omission of N was more stable with a regression coefficient of 0.5; it was followed by P with a value of 1. Potassium, S and B were limiting nutrients only in some farms. N and P should continue to be included in potato nutrient management, while K, S and B should be added based on soil test. |
| format | Journal Article |
| id | CGSpace114719 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Informa UK Limited |
| publisherStr | Informa UK Limited |
| record_format | dspace |
| spelling | CGSpace1147192025-01-27T15:00:52Z Response of potato crop to selected nutrients in central and eastern highlands of Kenya Mugo, J. Karanja, N. Gachene, C.K.K. Dittert, K. Gitari, H.I. Schulte-Geldermann, Elmar potatoes nitrogen phosphorus crops nutrition 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 omission trials were set during the long rains (LR) and short rains (SR) of 2016 in which the treatments involve the judicious omission of N, P, K, S and B. Additional two treatments were included with one receiving all the nutrients and a control where no nutrients were added. The treatment was laid in a randomized complete block design with three replications. Potato yields reduced by 6.6 and 11.2 t ha−1 in N-omitted treatments in LR and SR, respectively, when compared to the one receiving all the nutrients, while omitting P resulted in respective yield reductions of 3.8 and 2.0 t ha−1. Stability analysis revealed that omission of N was more stable with a regression coefficient of 0.5; it was followed by P with a value of 1. Potassium, S and B were limiting nutrients only in some farms. N and P should continue to be included in potato nutrient management, while K, S and B should be added based on soil test. 2021-03-14 2021-08-23T06:45:20Z 2021-08-23T06:45:20Z Journal Article https://hdl.handle.net/10568/114719 en Open Access Informa UK Limited Mugo, J. N., Karanja, N. N., Gachene, C. K., Dittert, K., Gitari, H. I., Schulte-Geldermann, E. (2021). Response of potato crop to selected nutrients in central and eastern highlands of Kenya. Cogent Food & Agriculture. ISSN 2331-1932 7(1). 19 p |
| spellingShingle | potatoes nitrogen phosphorus crops nutrition Mugo, J. Karanja, N. Gachene, C.K.K. Dittert, K. Gitari, H.I. Schulte-Geldermann, Elmar Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title | Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title_full | Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title_fullStr | Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title_full_unstemmed | Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title_short | Response of potato crop to selected nutrients in central and eastern highlands of Kenya |
| title_sort | response of potato crop to selected nutrients in central and eastern highlands of kenya |
| topic | potatoes nitrogen phosphorus crops nutrition |
| url | https://hdl.handle.net/10568/114719 |
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