Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems
Wheat yield gap in Ethiopia is high due to low nutrient availability, soil heterogeneity, undulating landscape, and climate. A study was conducted to identify yield-limiting nutrients for wheat yield under varying landscape positions and rainfall regimes. The treatments included all nutrients in ble...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Taylor & Francis
2025
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| Acceso en línea: | https://hdl.handle.net/10568/179029 |
| _version_ | 1855543091377733632 |
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| author | Agegnehu, Getachew Desta, Gizaw Amare, Tadele Agumas, Birhanu Legesse, Gizachew Amede, Tilahun Alemu, Erkihun Bazie, Zerfu Abera, Abate Bulo, Fayisa Demiss, Mulugeta Degefu, Tulu Chala, Girma Abera, Dejene Hundessa, Mesfin Abebe, Atakltie Desalegn, Temesgen Feyisa, Tesfaye Wendt, John Nagarajan, Latha Singh, Upendra Stewart, Zachary |
| author_browse | Abebe, Atakltie Abera, Abate Abera, Dejene Agegnehu, Getachew Agumas, Birhanu Alemu, Erkihun Amare, Tadele Amede, Tilahun Bazie, Zerfu Bulo, Fayisa Chala, Girma Degefu, Tulu Demiss, Mulugeta Desalegn, Temesgen Desta, Gizaw Feyisa, Tesfaye Hundessa, Mesfin Legesse, Gizachew Nagarajan, Latha Singh, Upendra Stewart, Zachary Wendt, John |
| author_facet | Agegnehu, Getachew Desta, Gizaw Amare, Tadele Agumas, Birhanu Legesse, Gizachew Amede, Tilahun Alemu, Erkihun Bazie, Zerfu Abera, Abate Bulo, Fayisa Demiss, Mulugeta Degefu, Tulu Chala, Girma Abera, Dejene Hundessa, Mesfin Abebe, Atakltie Desalegn, Temesgen Feyisa, Tesfaye Wendt, John Nagarajan, Latha Singh, Upendra Stewart, Zachary |
| author_sort | Agegnehu, Getachew |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Wheat yield gap in Ethiopia is high due to low nutrient availability, soil heterogeneity, undulating landscape, and climate. A study was conducted to identify yield-limiting nutrients for wheat yield under varying landscape positions and rainfall regimes. The treatments included all nutrients in blended (All-Blend), compound (All-Comp), and individual (All-Ind) forms containing N, P, K, S, Zn, and B, while K, S, Zn, and B omitted treatments were (All-Blend)-K, (All-Blend)-S, (All-Blend)-Zn, and (All-Blend)-B. Besides, NP only, 50 and 150% of the rate of all nutrients in the blended form (All-Blend), and a control without any nutrients were included. Results showed that the highest yield was obtained from the application of 150% of All-Blend across landscape positions and rainfall regimes, with grain yield improvement of 109.5% (2.54 t ha−1) by applying 150% of All-Blend under the foot slope position and high rainfall regime compared to the control and yield improvement of 72.5% under the low rainfall regime. With the control treatment grain yield was lower by 27–70% across landscape positions and rainfall regimes. The grain yield penalties due to K, S, Zn, and B omission were 0.54–9% over landscape positions and rainfall regimes compared to applying All-Blend, implying that the omission of K, S, Zn, and B were not yield-limiting nutrients for wheat production in the study areas. Thus, it will be crucial to consider landscape strata and rainfall regimes to optimize NP rates. Further study is also suggested as nutrient applications in blended, compound, or individual forms are inadequate to conclude. |
| format | Journal Article |
| id | CGSpace179029 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Taylor & Francis |
| publisherStr | Taylor & Francis |
| record_format | dspace |
| spelling | CGSpace1790292025-12-18T22:04:14Z Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems Agegnehu, Getachew Desta, Gizaw Amare, Tadele Agumas, Birhanu Legesse, Gizachew Amede, Tilahun Alemu, Erkihun Bazie, Zerfu Abera, Abate Bulo, Fayisa Demiss, Mulugeta Degefu, Tulu Chala, Girma Abera, Dejene Hundessa, Mesfin Abebe, Atakltie Desalegn, Temesgen Feyisa, Tesfaye Wendt, John Nagarajan, Latha Singh, Upendra Stewart, Zachary Blended fertilizer nutrient sources yield-limiting nutrients fertilizers landscape Wheat yield gap in Ethiopia is high due to low nutrient availability, soil heterogeneity, undulating landscape, and climate. A study was conducted to identify yield-limiting nutrients for wheat yield under varying landscape positions and rainfall regimes. The treatments included all nutrients in blended (All-Blend), compound (All-Comp), and individual (All-Ind) forms containing N, P, K, S, Zn, and B, while K, S, Zn, and B omitted treatments were (All-Blend)-K, (All-Blend)-S, (All-Blend)-Zn, and (All-Blend)-B. Besides, NP only, 50 and 150% of the rate of all nutrients in the blended form (All-Blend), and a control without any nutrients were included. Results showed that the highest yield was obtained from the application of 150% of All-Blend across landscape positions and rainfall regimes, with grain yield improvement of 109.5% (2.54 t ha−1) by applying 150% of All-Blend under the foot slope position and high rainfall regime compared to the control and yield improvement of 72.5% under the low rainfall regime. With the control treatment grain yield was lower by 27–70% across landscape positions and rainfall regimes. The grain yield penalties due to K, S, Zn, and B omission were 0.54–9% over landscape positions and rainfall regimes compared to applying All-Blend, implying that the omission of K, S, Zn, and B were not yield-limiting nutrients for wheat production in the study areas. Thus, it will be crucial to consider landscape strata and rainfall regimes to optimize NP rates. Further study is also suggested as nutrient applications in blended, compound, or individual forms are inadequate to conclude. 2025-04-20 2025-12-18T22:04:13Z 2025-12-18T22:04:13Z Journal Article https://hdl.handle.net/10568/179029 en Limited Access Taylor & Francis Agegnehu, Getachew; Desta, Gizaw; Amare, Tadele; Agumas, Birhanu; Legesse, Gizachew; Amede, Tilahun; Alemu, Erkihun; Bazie, Zerfu; Abera,Abate; Bulo, Fayisa; Demiss, Mulugeta; Degefu, Tulu; Chala, Girma; Abera, Dejene; Hundessa, Mesfin; Abebe, Atakltie; Desalegn, Temesgen; Feyisa, Tesfaye; Wendt, John; Nagarajan, Latha; Singh, Upendra and Stewart, Zachary.2025. Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems, Journal of Plant Nutrition, DOI: 10.1080/01904167.2025.2490037 |
| spellingShingle | Blended fertilizer nutrient sources yield-limiting nutrients fertilizers landscape Agegnehu, Getachew Desta, Gizaw Amare, Tadele Agumas, Birhanu Legesse, Gizachew Amede, Tilahun Alemu, Erkihun Bazie, Zerfu Abera, Abate Bulo, Fayisa Demiss, Mulugeta Degefu, Tulu Chala, Girma Abera, Dejene Hundessa, Mesfin Abebe, Atakltie Desalegn, Temesgen Feyisa, Tesfaye Wendt, John Nagarajan, Latha Singh, Upendra Stewart, Zachary Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title | Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title_full | Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title_fullStr | Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title_full_unstemmed | Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title_short | Targeting nutrient sources and forms to identify yield-limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed-farming systems |
| title_sort | targeting nutrient sources and forms to identify yield limiting nutrients for wheat under contrasting rainfall regimes and landscape positions in mixed farming systems |
| topic | Blended fertilizer nutrient sources yield-limiting nutrients fertilizers landscape |
| url | https://hdl.handle.net/10568/179029 |
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