Role of VAM on growth and phosphorus nutrition of maize with low soluble phosphate fertilization

The effect of vesicular arbuscular mycorrhizal (VAM) infection on growth and P nutrition in Maize (Zea mays, cv.DDH hybrid) were assessed in Oxisol pot experiment. Maize was grown inoculated with spores of VAM fungi Glomus mosseae or non-inoculated. Low soluble ferrous phosphate (FePO4.4H2O) was add...

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Published in:Acta agronomica (Palmira) 2010, Vol.59 (1), p.111-118
Main Authors: Rakshit, Amitava(Institute of Agricultural Science 1Department of Soil Science and Agriculture Chemistry), Bhadoria, Pratapbhanu S(Institute of Technology Kharagpur Department of Agricultural and Food Engineering)
Format: Article
Language:eng ; por
Subjects:
AGRICULTURE, MULTIDISCIPLINARY
fósforo
Glomus mosseae
maiz
maize
micorrizas arbusculares
Mycoryhyzae
Oxisol
phosphorus
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Summary:The effect of vesicular arbuscular mycorrhizal (VAM) infection on growth and P nutrition in Maize (Zea mays, cv.DDH hybrid) were assessed in Oxisol pot experiment. Maize was grown inoculated with spores of VAM fungi Glomus mosseae or non-inoculated. Low soluble ferrous phosphate (FePO4.4H2O) was added to the mycorrhized and non-micrrohized maized. The dry weight of mycorrhized plants with added phosphate (P) were higher than in mycorrhized plants without added P or non-mycorrhized plants with added P. The amount of P in the soil samples from pots with mycorrhizal plants fertilized with P was evidently smaller than those in samples also fertilized non-mycorrhizal plants. The percentage of P was higher in tissues of fertilized mycorrhial plants than in those mycorrihzed plants without or nonmycorrhized plants with added low-soluble P. These results indicated that plants in VAM symbiosis mobilize P better from low-soluble P than non-mycorrhized plants. En condiciones de casa de malla se evaluó el efecto de la infestación con micorrizas vesículo arbusculares (VAM) en la asimilación de P por plantas de maíz (Zea mays, cv.DDH hybrid) cultivadas en un Oxisol. Como micorriza se utilizó el hongo Glomus mosseae. En ambos tratamientos (con micorriza y sin ella) se aplicó fosfato ferroso (FePO4.4H2O). La producción de MS de maíz fue mayor cuando se aplicaron el hongo + la fuente de P. La cantidad de P en el suelo con este tratamiento fue menor que en el suelo fertilizado pero sin aplicación del hongo. En las hojas de las plantas las mayores concentraciones de P se observaron igualmente en el tratamiento micorriza + aplicación de fertilizante.
ISSN:0120-2812
2323-0118