Navegação Ciências Agrárias por Autor "Jong van Lier, Quirijn de"

Resultados 1-3 de 3

    • Definition of tolerable soil erosion values 

      Sparovek, Gerd; Jong van Lier, Quirijn de (1997) [Artigo de periódico]
      Although the criteria for defining erosion tolerance are well established, the limits generally used are not consistent with natural, economical and technological conditions. Rates greater than soil formation can be accepted ...

    • Extraction of soil water by plants : development and validation of a model 

      Jong van Lier, Quirijn de; Libardi, Paulo Leonel (1997) [Artigo de periódico]
      A quantitative model of water movement within the immediate vicinity of an individual root is developed and results of an experiment to validate the model are presented. The model is based on the assumption that the amount ...

    • Novo método para calcular o diâmetro médio de agregados de solos 

      Jong van Lier, Quirijn de; Albuquerque, Jackson Adriano (1997) [Artigo de periódico]
      Ao calcular o diâmetro médio ponderado (DMP) ou o diâmetro médio geométrico (DMG) de uma amostra de solo, ponderam-se o diâmetro médio aritmético (no caso do DMP) ou o logarítmico (no caso do DMG) de cada classe pela massa ...