Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield
The objective of this study was to report single season effects of wood biochar (char) application coupled with N fer_x0002_tilization on soil chemical properties, aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BrazilianSavannah. Char application effected an increase in soil...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2013
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/116524 |
| _version_ | 1855525404768468992 |
|---|---|
| author | Carvalho, M.T.M. Madari, Beáta E Bastiaans, L. Oort, P.A.J. van Heinemann, Alexandre B. Silva, M.A.S. da Maia, A.H.N.M. Meinke, Holger |
| author_browse | Bastiaans, L. Carvalho, M.T.M. Heinemann, Alexandre B. Madari, Beáta E Maia, A.H.N.M. Meinke, Holger Oort, P.A.J. van Silva, M.A.S. da |
| author_facet | Carvalho, M.T.M. Madari, Beáta E Bastiaans, L. Oort, P.A.J. van Heinemann, Alexandre B. Silva, M.A.S. da Maia, A.H.N.M. Meinke, Holger |
| author_sort | Carvalho, M.T.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The objective of this study was to report single season effects of wood biochar (char) application coupled with N fer_x0002_tilization on soil chemical properties, aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BrazilianSavannah. Char application effected an increase in soil pH, K, Ca, Mg, CEC, Mn and nitrate while decreasing Alcontent and potential acidity of soils. No distinct effect of char application on grain yield of aerobic rice was observed.We believe that soil properties impacted by char application were inconsequential for rice yields because neither wa_x0002_ter, low pH, nor the availability of K or P were limiting factors for rice production. Rate of char above 16 Mg ha −1reduced leaf area index and total shoot dry matter by 72 days after sowing. The number of panicles infected by riceblast decreased with increasing char rate. Increased dry matter beyond the remobilization capacity of the crop, andhigh number of panicles infected by rice blast were the likely cause of the lower grain yield observed when more than60 kg N ha−1 was applied. The optimal rate of N was 46 kg ha−1 and resulted in a rice grain yield above 3 Mg ha−1. |
| format | Journal Article |
| id | CGSpace116524 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| record_format | dspace |
| spelling | CGSpace1165242024-03-06T10:16:43Z Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield Carvalho, M.T.M. Madari, Beáta E Bastiaans, L. Oort, P.A.J. van Heinemann, Alexandre B. Silva, M.A.S. da Maia, A.H.N.M. Meinke, Holger nitrogen oryza sativa oxisol The objective of this study was to report single season effects of wood biochar (char) application coupled with N fer_x0002_tilization on soil chemical properties, aerobic rice growth and grain yield in a clayey Rhodic Ferralsol in the BrazilianSavannah. Char application effected an increase in soil pH, K, Ca, Mg, CEC, Mn and nitrate while decreasing Alcontent and potential acidity of soils. No distinct effect of char application on grain yield of aerobic rice was observed.We believe that soil properties impacted by char application were inconsequential for rice yields because neither wa_x0002_ter, low pH, nor the availability of K or P were limiting factors for rice production. Rate of char above 16 Mg ha −1reduced leaf area index and total shoot dry matter by 72 days after sowing. The number of panicles infected by riceblast decreased with increasing char rate. Increased dry matter beyond the remobilization capacity of the crop, andhigh number of panicles infected by rice blast were the likely cause of the lower grain yield observed when more than60 kg N ha−1 was applied. The optimal rate of N was 46 kg ha−1 and resulted in a rice grain yield above 3 Mg ha−1. 2013 2021-12-06T12:34:01Z 2021-12-06T12:34:01Z Journal Article https://hdl.handle.net/10568/116524 en Open Access Carvalho, M. T.M. Madari, B. E. Bastiaans, L. van Oort, P. A.J. Heinemann, A. B. da Silva, M. A.S. Maia, A. H.N. M. Meinke, H. Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield. Journal of Agriculture and Rural Development in the Tropics and Subtropics. 2013, Volume 114, Issue 2: 101-107. |
| spellingShingle | nitrogen oryza sativa oxisol Carvalho, M.T.M. Madari, Beáta E Bastiaans, L. Oort, P.A.J. van Heinemann, Alexandre B. Silva, M.A.S. da Maia, A.H.N.M. Meinke, Holger Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title | Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title_full | Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title_fullStr | Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title_full_unstemmed | Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title_short | Biochar improves fertility of a clay soil in the Brazilian Savannah: short term effects and impact on rice yield |
| title_sort | biochar improves fertility of a clay soil in the brazilian savannah short term effects and impact on rice yield |
| topic | nitrogen oryza sativa oxisol |
| url | https://hdl.handle.net/10568/116524 |
| work_keys_str_mv | AT carvalhomtm biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT madaribeatae biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT bastiaansl biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT oortpajvan biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT heinemannalexandreb biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT silvamasda biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT maiaahnm biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield AT meinkeholger biocharimprovesfertilityofaclaysoilinthebraziliansavannahshorttermeffectsandimpactonriceyield |