Fertilización fosfatada e inoculación de soja en vertisoles
The symbiosis between rhizobia and soybean (Glycine max (L.) Merril) provides most of the nitrogen requirements of the crop through a process that also depends on the availability of nutrients, for example phosphorous. The objective of this study was to determine the contribution of P fertilization...
Guardado en:
| Autores principales: | , , , |
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| Formato: | article Artículo publishedVersion |
| Lenguaje: | Español |
| Publicado: |
2010
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| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2010DiazZorita |
| Aporte de: |
| Sumario: | The symbiosis between rhizobia and soybean (Glycine max (L.) Merril) provides most of the nitrogen requirements of the crop through a process that also depends on the availability of nutrients, for example phosphorous. The objective of this study was to determine the contribution of P fertilization (0, 18 y 36 kg ha-1) and Bradyrhizobium japonicum inoculation on the nodulation and grain yield of soybean crops in Vertisols with low soil P availability. In the sites without previous soybean crops, the inoculation promoted a greater nodulation, and shoot dry matter and grain yields above the non-inoculated crops. Nodulation and shoot growth increased with increasing available P (Psoil + Pfertilization) levels up to 12.4 mg kg-1. In the sites rotated with soybean, yields were greater in the inoculated crops. Shoot dry matter and grain yields increased with increasing available P levels only under inoculation. In general, the inoculated and fertilized crops showed greater production suggesting the convenience of the combined nutrition of soybean crops for achieving greater grain yields. |
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