Integration of crop rotation and arbuscular mycorrhiza (AM) inoculum application for enhancing AM activity to improve phosphorus nutrition and yield of upland rice (Oryza sativa L.).
Mycorrhiza
; 21(8): 659-667, 2011 Nov.
Article
en En
| MEDLINE
| ID: mdl-21448812
ABSTRACT
Upland rice (Oryza sativa L.) is a major crop of Eastern India grown during the wet season (June/July to September/October). Aerobic soils of the upland rice system, which are acidic and inherently phosphorus (P) limiting, support native arbuscular mycorrhizal (AM) activity. Attempts were made to improve P nutrition of upland rice by exploiting this natural situation through different crop rotations and application of AM fungal (AMF) inoculum. The effect of a 2-year crop rotation of maize (Zea mays L.) followed by horse gram (Dolichos biflorus L.) in the first year and upland rice in the second year on native AM activity was compared to three existing systems, with and without application of a soil-root-based inoculum. Integration of AM fungal inoculation with the maize-horse gram rotation had synergistic/additive effects in terms of AMF colonization (+22.7 to +42.7%), plant P acquisition (+11.2 to +23.7%), and grain yield of rice variety Vandana (+25.7 to +34.3%).
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Fósforo
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Oryza
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Microbiología del Suelo
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Micorrizas
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Agricultura
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Glomeromycota
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Inoculantes Agrícolas
Tipo de estudio:
Evaluation_studies
País como asunto:
Asia
Idioma:
En
Año:
2011
Tipo del documento:
Article