Soil quality assessment of Uruguayan agricultural soils

作者: Andrés Quincke , Alejandro Morón , Wilfredo Ibáñez , Juan Molfino , Adriana García

DOI: 10.2477/VOL16ISS3PP135-143

关键词: Reference valuesAgricultureEdaphicSoil waterEnvironmental scienceSoil carbonAgronomySoil qualitySoil scienceSampling depth

摘要: The process of agricultural intensifi cation in Uruguay brought up questions about the impacts on soil. In order to analyze soil quality status departamentos Soriano and Rio Negro, we sampled 108 fi elds determine organic carbon (SOC) potentially mineralizable nitrogen (PMN). Average losses were 20% SOC 42% PMN 0-15cm sampling depth. About one third had between 30 60% 35 80% PMN. Losses varied among edaphic environments. Results effects use management are not conclusive. This paper concludes with reference values for different environments studied.

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George John Bouyoucos, Hydrometer Method Improved for Making Particle Size Analyses of Soils1 Agronomy Journal. ,vol. 54, pp. 464- 465 ,(1962) , 10.2134/AGRONJ1962.00021962005400050028X