Abstract
We examined the distribution of residual15N and its uptake by a foxtail millet crop grown in field lysimeters following at previous garlic crops fertilized with either15N-urea or15N-ammonium sulphate. Garlic apprently removed more N from the lysimeters treated with urea-N than from those treated with (NH4)2SO4. Fertilizer-N in the lysmeters was similar (ca. 32% of original) following millet harvest. About 16 per cent of both fertilizers in the lysimeters was removed by the millet.
Resumen
Se examinó la distribución y absorción de nitrógeneo en moha de Hungría (Setaria itaclica) cultivada en lisímetros de campo a continuación de un cultivo de ajo colorado (Allium sativum) el cual había sido fertilizado con ureaj o con sulfato de amonio marcados con15N. Aparentemente el ajo extrajo mas nitrógeno de los lisímetros que habían sido fertilizados con urea que de los tratados con sulfato de amonio. La cantidad nitrógeno remanente enj los lisímetros luego de la cosecha de la moha fue similar para las dos fuentes de nitrógeno (ca. 32% del orginal). La moha recupereé alrededor de 16% del nitrógeneo aplicadoj al cultivo de ajo.
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Lazzari, M.A. Distribution of15N fertilizer in field-lysimeters sown with garlic (Allium sativum) and foxtail millet (Setaria italica). Plant Soil 67, 187–191 (1982). https://doi.org/10.1007/BF02182766
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DOI: https://doi.org/10.1007/BF02182766