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Variabilidad espacial de fosforo en suelo y planta en un argiudol tipico bajo cultivo de maiz

Abstract : Spatial variability of extractable.adsorbed and plant phosphorus was studied on a com crop using two sampling scales:a unit of 16 ha and one hectare within the same surface.considering 100 soil samples and the same quantity of plant samples. Extractable phosphorus showed the greatest variability and the least was for absorbed phosphorus. Extractable phosphorus also presented a great anisotropy with different results in the two sampling scales when geoestatistical analysis were considered.Adsorbed P and plant P showed “nugget’* effect. Plant phosphorus was the unique variable presenting normal distribution. Scale taken into consideration affected the range of the obtained values and required sampling intensity.
Keywords : efecto nugget
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https://hal.inrae.fr/hal-02708143
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  • HAL Id : hal-02708143, version 1
  • PRODINRA : 366525

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Lidia Giuffre de Lopez Camelo, Jorge Sierra, Claudia Fumagalli, Silvia Ratto de Miguez. Variabilidad espacial de fosforo en suelo y planta en un argiudol tipico bajo cultivo de maiz. Revista de la Facultad de Agronomía (Buenos Aires), 1994, 14 (1), pp.1-8. ⟨hal-02708143⟩

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