Effect of buckwheat (Fagopyrum esculentum) on soil‐phosphorus availability and organic acids |
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| Authors: | Angela R. Possinger Loren B. Byrne Nancy E. Breen |
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| Affiliation: | 1. Roger Williams University;2. Department of Biology, Marine Biology and Environmental Science, One Old Ferry Road, Bristol, RI 02809, USA;3. Roger Williams University, Department of Chemistry, One Old Ferry Road, Bristol, RI 02809, USA |
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| Abstract: | As a cover crop, buckwheat (Fagopyrum esculentum) may increase soil‐P availability. Buckwheat was grown in low‐P and P‐fertilized field plots, and organic anions were measured in rhizosphere soil. Soil‐P availability was not affected by buckwheat, but the concentration of rhizosphere tartrate2– was significantly higher (p < 0.005) in low‐P vs. P‐fertilized plots. This suggests that organic‐anion root exudation may have a role in buckwheat‐rhizosphere P dynamics. |
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| Keywords: | sustainable agriculture cover crops nutrient management |
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