Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols
Malting barley production in the Southeastern highlands of Ethiopia relied on almost a blanket phosphorus (P) fertilizer recommendation regardless of the diverse fertility status of the soil. This study was, therefore, conducted in Lemu–Bilbilo district at 24 fields for two cropping seasons to provi...
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| Format: | Article |
| Language: | English |
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De Gruyter
2022-04-01
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| Series: | Open Agriculture |
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| Online Access: | https://doi.org/10.1515/opag-2022-0078 |
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| author | Tadesse Kassu Abdulkadir Birhan Admasu Wubengeda Habte Dawit Admasu Almaz Tadesse Amare Debebe Anbessie |
| author_facet | Tadesse Kassu Abdulkadir Birhan Admasu Wubengeda Habte Dawit Admasu Almaz Tadesse Amare Debebe Anbessie |
| author_sort | Tadesse Kassu |
| collection | DOAJ |
| description | Malting barley production in the Southeastern highlands of Ethiopia relied on almost a blanket phosphorus (P) fertilizer recommendation regardless of the diverse fertility status of the soil. This study was, therefore, conducted in Lemu–Bilbilo district at 24 fields for two cropping seasons to provide farmers with P fertilizer recommendations based on soil fertility status and to enhance malting barley production. The experiment comprised six levels of P fertilizer (0, 10, 20, 30, 40, and 50 kg P ha−1) arranged in a randomized complete block design with three replications. The critical concentrations for soil P levels were found above 13 mg P kg−1 for Olsen and 16 mg P kg−1 for Bray II, and were sufficient for malting barley production on Nitisol of the study area and other similar agro-ecologies. The mean P-requirement factors were 5.80 and 6.10 mg P kg−1 for Olsen and Bray II, respectively. Results further revealed that P fertilization, at a rate of 30 kg ha−1, gave 10 and 73% more grain yields of malting barley compared to the existing recommendation, 20 kg P ha−1, and treatment with no P fertilizer, respectively. Such information can be used as a guideline for soil-specific P fertilizer recommendations to increase the productivity of malting barley in the study area and other similar agro-ecologies, where soil test studies were not conducted. |
| first_indexed | 2024-04-12T11:58:13Z |
| format | Article |
| id | doaj.art-73e2a93dd8ef4a1298cf0f6410f12d92 |
| institution | Directory Open Access Journal |
| issn | 2391-9531 |
| language | English |
| last_indexed | 2024-04-12T11:58:13Z |
| publishDate | 2022-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Agriculture |
| spelling | doaj.art-73e2a93dd8ef4a1298cf0f6410f12d922022-12-22T03:33:57ZengDe GruyterOpen Agriculture2391-95312022-04-017117118010.1515/opag-2022-0078Soil test-based phosphorus fertilizer recommendation for malting barley production on NitisolsTadesse Kassu0Abdulkadir Birhan1Admasu Wubengeda2Habte Dawit3Admasu Almaz4Tadesse Amare5Debebe Anbessie6Department of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaDepartment of Natural Resources Management, Kulumsa Agricultural Research Center, Ethiopian Institute of Agricultural Research, P.O. Box 489, Kulumsa, EthiopiaMalting barley production in the Southeastern highlands of Ethiopia relied on almost a blanket phosphorus (P) fertilizer recommendation regardless of the diverse fertility status of the soil. This study was, therefore, conducted in Lemu–Bilbilo district at 24 fields for two cropping seasons to provide farmers with P fertilizer recommendations based on soil fertility status and to enhance malting barley production. The experiment comprised six levels of P fertilizer (0, 10, 20, 30, 40, and 50 kg P ha−1) arranged in a randomized complete block design with three replications. The critical concentrations for soil P levels were found above 13 mg P kg−1 for Olsen and 16 mg P kg−1 for Bray II, and were sufficient for malting barley production on Nitisol of the study area and other similar agro-ecologies. The mean P-requirement factors were 5.80 and 6.10 mg P kg−1 for Olsen and Bray II, respectively. Results further revealed that P fertilization, at a rate of 30 kg ha−1, gave 10 and 73% more grain yields of malting barley compared to the existing recommendation, 20 kg P ha−1, and treatment with no P fertilizer, respectively. Such information can be used as a guideline for soil-specific P fertilizer recommendations to increase the productivity of malting barley in the study area and other similar agro-ecologies, where soil test studies were not conducted.https://doi.org/10.1515/opag-2022-0078critical phosphorus concentrationmalting barleynitisolphosphorus calibration, phosphorus requirement factors |
| spellingShingle | Tadesse Kassu Abdulkadir Birhan Admasu Wubengeda Habte Dawit Admasu Almaz Tadesse Amare Debebe Anbessie Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols Open Agriculture critical phosphorus concentration malting barley nitisol phosphorus calibration, phosphorus requirement factors |
| title | Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols |
| title_full | Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols |
| title_fullStr | Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols |
| title_full_unstemmed | Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols |
| title_short | Soil test-based phosphorus fertilizer recommendation for malting barley production on Nitisols |
| title_sort | soil test based phosphorus fertilizer recommendation for malting barley production on nitisols |
| topic | critical phosphorus concentration malting barley nitisol phosphorus calibration, phosphorus requirement factors |
| url | https://doi.org/10.1515/opag-2022-0078 |
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