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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/10560

Title: Biochar use in a legume–rice rotation system: effects on soil fertility and crop performance
Authors: Partey, Samuel T.
Saito, Kazuki
Preziosi, Richard F.
Robson, Geoffrey D.
Keywords: Biochar
Soil fertility
Oryza sativa
Green manure
Issue Date: 2016
Publisher: Archives of Agronomy and Soil Science
Citation: Archives of Agronomy and Soil Science, 2016 Vol. 62, No. 2, 199–215, http://dx.doi.org/10.1080/03650340.2015.1040399
Abstract: The aim of this study was to determine whether by applying biochar, it is possible to augment the beneficial effects of legume–crop rotation systems on soil fertility and crop performance. Repeated experiments were established in 2012 and 2013 in Southwestern Benin using a split-split plot design. Two legumes, Mucuna pruriens (mucuna) and Vigna unguiculata (cowpea), were planted for 42 days on biochar-amended and unamended plots and subsequently cut and applied as mulch 5 days before planting rice. Rice plants were either fertilized or not using a fertilizer rate of 60, 30, and 30 kg ha−1 of N, P2O5, and K2O, respectively. The results showed that the application of legume green manures and fertilizer, either singly or in combination, improved soil nutrient availability, CEC, shoot yield, and grain yield of rice on both biochar-amended and unamended plots. However, the effect was significantly (p < 0.05) greater on biochar-amended plots. The mean grain yield for all cropping seasons was 1.8 t ha−1 for biochar-amended plots and 1.3 t ha−1 for unamended plots. The greater grain yield of rice on biochar-amended plots was associated with improved soil fertility and increased N uptake.
Description: An article published by Archives of Agronomy and Soil Science, 2016 Vol. 62, No. 2, 199–215, http://dx.doi.org/10.1080/03650340.2015.1040399
URI: http://hdl.handle.net/123456789/10560
Appears in Collections:College of Agric and Natural Resources

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