10253: Improving green manure quality with phosphate rocks in Ontario Canada
(2006) Improving green manure quality with phosphate rocks in Ontario Canada. Poster presented at What can organic farming deliver? COR 2006, Heriot-Watt University, Edinburgh, 18-20 September 2006; Published in Atkinson, C; Ball, B; Davies, D H K; Rees, R; Russell, G; Stockdale, E A; Watson, C A; Walker, R and Younie, D, Eds. Aspects of Applied Biology 79, What will organic farming deliver? COR 2006, page pp. 283-287.
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Summary
Phosphate rock (PR) was applied to one conventional and two organic dairy fields and planted with buckwheat (Fagopyrum esculentum) as a green manure crop. In total, five types of PR were applied at three application rates in order to determine the yield, concentration of P in the aboveground tissue and the P uptake of buckwheat. It was found that PR of relatively high carbonate substitution and small particle diameter could increase buckwheat tissue concentrations to a quality such that mineralization of the buckwheat mulch could occur. Buckwheat mulch and residual PR increased soil P flux as determined by anion exchange membranes in situ in the following spring. This provides evidence that buckwheat of high P quality has the potential to supply P to a subsequent crop.
| Document Language: | English |
|---|---|
| Keywords: | Phosphate rock, Fagopyrum esculentum, green manure, soil phosphorus |
| Subject Areas: | Soil > Nutrient turnover Crop husbandry > Crop combinations and interactions Crop husbandry > Composting and manuring |
| Research affiliation: | Other countries UK > Colloquium of Organic Researchers (COR) > COR 2006 |
| Total budget (Euro): | 0 |
| Orgprints ID Number: | 10253 |
| Contact: | MILLMAN, Mrs Carol A |
| Deposited On: | 20 December 2006 |
| EPrint Type: | Conference poster |
| Published?: | Published |
| Peer Review Status: | Not peer-reviewed |
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