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| Format: | Artículo científico |
| Language: | en |
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Academia Brasileira de Ciências
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=32778413 |
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Table of Contents:
- Plant- and microbial-based mechanisms to improve the agronomic effectiveness of phosphate rock: a review Melissa M. Arcand Kim D. Schneider Multidisciplinaria (Ciencias Naturales y Exactas) phosphorus agriculture rhizosphere microorganisms phosphate rock Deficiency in plant-available phosphorus is considered to be a major limiting factor to food production inmany agricultural soils. Mineral resources are necessary to restore soil phosphorus content. In regions whereconventional fertilizers are not used due to cost limitations or to mitigate adverse environmental effects,local sources of phosphate rock are being increasingly recognized for potential use as alternative phosphorusfertilizers. The main obstacle associated with using directly applied ground phosphate rock is that thephosphate released is often unable to supply sufficient plant-available phosphorus for crop uptake. Plantandmicrobial-based mechanisms are low-cost, appropriate technologies to enhance the solubilization andincrease the agronomic effectiveness of phosphate rock. Common mechanisms of phosphate rock dissolutionincluding proton and organic acid production will be reviewed for both plants and microorganisms. Thisreview will also address possibilities for future research directions and applications to agriculture, as well ashighlight ongoing research at the University of Guelph, Guelph, Canada. 2006 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32778413 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.78