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| Main Author: | |
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| Format: | Artículo científico |
| Language: | es |
| Published: |
Instituto Nacional de Ciencias Agrícolas
2016
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| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=193245041003 https://www.redalyc.org/journal/1932/193245041003/ https://www.redalyc.org/journal/1932/193245041003/html/ https://www.redalyc.org/journal/1932/193245041003/193245041003.epub https://www.redalyc.org/journal/1932/193245041003/movil |
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Table of Contents:
- FUENTES DE FOSFATO ASOCIADAS A LA CACHAZA Y EL BIOFERTILIZANTE SOBRE LOS MICROORGANISMOS SOLUBILIZADORES DE FÓSFORO Y SU CONTENIDO EN EL SUELO Cid N. Silva Campos Renato de Mello Prado Leónides Castellanos González Maikel Abreu Jiménez Leandro Rosatto Moda Agrociencias phosphorus solubilization soil microbiology organic fertilization Soils from tropical regions have high adsorption of phosphorus, which is hardly available to plants, so limiting crop production. This study was aimed to evaluate the effect of acidulated phosphate and ground rock phosphate sources associated with filter cake, enriched or not with biofertilizer, on the population of phosphate solubilizing microorganisms and P concentration in the soil. The experiment was carried out under laboratory conditions at “Carlos Rafael Rodríguez” University of Cienfuegos, Cuba. Experimental units were pots of 0,5 dm3 containing Luvisol. A completely randomized design with 3x2+1 factorial arrangement and three repetitions was used; also, three phosphorus sources: triple superphosphate, mono-ammonium phosphate and natural phosphate of Cuba; filter cake enriched or not with Azotofos biofertilizer and a control treatment (just soil). The amount of P solubilizing microorganisms, soil P levels, organic matter and soil pH value were assessed at 30 and 60 days after applying treatments. The biofertilizer added to filter cake did not have any effect on P levels and soil organic matter. Phosphorus applied as natural phosphate increased the population of microorganisms and soil P level in presence of filter cake, enriched or not with biofertilizer, in relation to acidulated phosphate sources. 2016 artículo científico 1819-4087 https://www.redalyc.org/articulo.oa?id=193245041003 https://www.redalyc.org/journal/1932/193245041003/ https://www.redalyc.org/journal/1932/193245041003/html/ https://www.redalyc.org/journal/1932/193245041003/193245041003.epub https://www.redalyc.org/journal/1932/193245041003/movil es http://www.redalyc.org/revista.oa?id=1932 Cultivos Tropicales application/pdf Instituto Nacional de Ciencias Agrícolas Cultivos Tropicales (Cuba) Num.1 Vol.37