Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia
Abstract Background Cassava is a heavy feeder crop that can cause serious depletion to soil nutrient stocks. This research aimed to explore soil fertility status and nutrient supply capacity at different growth stages of cassava fields under combined application of organic manure and NPK fertilizers...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-01-01
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| Series: | Environmental Systems Research |
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| Online Access: | http://link.springer.com/article/10.1186/s40068-019-0131-7 |
| _version_ | 1818863832630558720 |
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| author | Gizachew Kebede Biratu Eyasu Elias Pheneas Ntawuruhunga |
| author_facet | Gizachew Kebede Biratu Eyasu Elias Pheneas Ntawuruhunga |
| author_sort | Gizachew Kebede Biratu |
| collection | DOAJ |
| description | Abstract Background Cassava is a heavy feeder crop that can cause serious depletion to soil nutrient stocks. This research aimed to explore soil fertility status and nutrient supply capacity at different growth stages of cassava fields under combined application of organic manure and NPK fertilizers in two agroecologies of Zambia. Topsoil (0–20 cm) samples were collected from cassava fields treated with factorial combination of four levels of chicken manure (0, 1.4, 2.8, and 4.2 ton ha−1) and four levels of NPK (control, 50N-11P-41.5K, 100N-22P-83K, and 150N-33P-124.5P). The soils were sampled under the cassava canopy to determine soil pH, available phosphorus (AP), total nitrogen (TN), organic carbon (OC), cation exchange capacity (CEC), exchangeable bases and micronutrients (Fe, Cu, Mn, and Zn). The samples were collected before planting andafter establishment at 4, 8, and 12 months after planting (MAP). Results Manure application significantly (p < 0.05) increased soil pH, while the application of mineral fertilizer reduced soil pH at all the plant growth stages. Similarly, manure application and their interaction with mineral fertilizer increased OC and TN levels, especially at harvest. By contrast, OC and TN decreased with the application of mineral fertilizer. AP levels increased following the application of both fertilizers. In addition, manure application significantly increased soil Zn content from 0.69 mg kg−1 in the control to 3.54 mg kg−1 for the highest level of manure at harvest. The interaction between manure and NPK significantly affected Fe and Mn content in the soil. Conclusion The results revealed that sole chicken manure application or its combination with mineral fertilizer improves soil nutrient status of cassava fields in Zambian condition. |
| first_indexed | 2024-12-19T10:22:02Z |
| format | Article |
| id | doaj.art-9777bd9b0ff042f1aff8b90b0ab057d4 |
| institution | Directory Open Access Journal |
| issn | 2193-2697 |
| language | English |
| last_indexed | 2024-12-19T10:22:02Z |
| publishDate | 2019-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Environmental Systems Research |
| spelling | doaj.art-9777bd9b0ff042f1aff8b90b0ab057d42022-12-21T20:26:02ZengSpringerOpenEnvironmental Systems Research2193-26972019-01-018111310.1186/s40068-019-0131-7Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in ZambiaGizachew Kebede Biratu0Eyasu Elias1Pheneas Ntawuruhunga2Center for Environmental Science, College of Natural and Computational Science, Addis Ababa UniversityCenter for Environmental Science, College of Natural and Computational Science, Addis Ababa UniversityInternational Institute of Tropical Agriculture (IITA)Abstract Background Cassava is a heavy feeder crop that can cause serious depletion to soil nutrient stocks. This research aimed to explore soil fertility status and nutrient supply capacity at different growth stages of cassava fields under combined application of organic manure and NPK fertilizers in two agroecologies of Zambia. Topsoil (0–20 cm) samples were collected from cassava fields treated with factorial combination of four levels of chicken manure (0, 1.4, 2.8, and 4.2 ton ha−1) and four levels of NPK (control, 50N-11P-41.5K, 100N-22P-83K, and 150N-33P-124.5P). The soils were sampled under the cassava canopy to determine soil pH, available phosphorus (AP), total nitrogen (TN), organic carbon (OC), cation exchange capacity (CEC), exchangeable bases and micronutrients (Fe, Cu, Mn, and Zn). The samples were collected before planting andafter establishment at 4, 8, and 12 months after planting (MAP). Results Manure application significantly (p < 0.05) increased soil pH, while the application of mineral fertilizer reduced soil pH at all the plant growth stages. Similarly, manure application and their interaction with mineral fertilizer increased OC and TN levels, especially at harvest. By contrast, OC and TN decreased with the application of mineral fertilizer. AP levels increased following the application of both fertilizers. In addition, manure application significantly increased soil Zn content from 0.69 mg kg−1 in the control to 3.54 mg kg−1 for the highest level of manure at harvest. The interaction between manure and NPK significantly affected Fe and Mn content in the soil. Conclusion The results revealed that sole chicken manure application or its combination with mineral fertilizer improves soil nutrient status of cassava fields in Zambian condition.http://link.springer.com/article/10.1186/s40068-019-0131-7Chicken manureMacronutrientsMicronutrientsNPK fertilizersSoil nutrient |
| spellingShingle | Gizachew Kebede Biratu Eyasu Elias Pheneas Ntawuruhunga Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia Environmental Systems Research Chicken manure Macronutrients Micronutrients NPK fertilizers Soil nutrient |
| title | Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia |
| title_full | Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia |
| title_fullStr | Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia |
| title_full_unstemmed | Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia |
| title_short | Soil fertility status of cassava fields treated by integrated application of manure and NPK fertilizer in Zambia |
| title_sort | soil fertility status of cassava fields treated by integrated application of manure and npk fertilizer in zambia |
| topic | Chicken manure Macronutrients Micronutrients NPK fertilizers Soil nutrient |
| url | http://link.springer.com/article/10.1186/s40068-019-0131-7 |
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