Now showing items 1-6 of 6

    • Variabilidad de δ13C y δ15N en suelo y hojarasca de cacao en El Oro, Ecuador 

      Barrezueta Unda, Salomón Alejandro; Paz González, Antonio; Luna Romero, Ángel Eduardo; Jaramillo Aguilar, Edwin (Mexican Society of Soil Science, 2019-04-15)
      [Resumen] El cacao aporta niveles signif icativos de carbono (C) y nitrógeno(N) por las hojarascas; el cambio de manejo agronómico ocasiona variación en los contenidos de estos elementos en el suelo. El objetivo fue evaluar ...
    • Estimation of elemental composition of agricultural soils from West Azerbaijan, Iran, using mid-infrared spectral models 

      Goydaragh, Maryam Ghebleh; Jafarzadeh, Ali Asghar; Shahbazi, Farzin; Oustan, Shahin; Taghizadeh-Mehrjardi, Ruhollah; Lado, Marcos (Universidade Federal de Campina Grande, 2019-04-30)
      [Abstract] Characterizing the elemental composition provides useful information about the weathering degree of soils. In Miandoab County, Northern Iran, this characterization was missing, and thus the objectives of this ...
    • Impact of pig slurry application on soil and water losses: comparison with a historical series 

      Bandeira, Douglas Henrique; Bertol, Ildegardis; Vidal Vázquez, Eva; Ramos, Júlio C.; Bertol, Camilo (Universidade Federal de Campina Grande, 2019-04-30)
      [Abstract] Water erosion in soil is influenced by several factors, including rain, relief, cover, and management and conservation practices. Also, erosion is affected by pig slurry (PS) applied to the soil as a fertilizer. ...
    • Reforested soil under drip irrigation with treated wastewater from poultry slaughterhouse 

      Araujo, Izabela R. C.; Sampaio, Silvio César; Paz González, Antonio; Vilas-Boas, Márcio Antonio; Gonçalves Junior, Affonso Celso; Szekut, Flávio Daniel (Universidade Federal de Campina Grande, 2019-04-30)
      [Abstract] The disposal of treated effluents on soil is the main final use of wastewater in Brazil. Although this practice can promote improvements of some soil attributes, there is a need for monitoring in order to ensure ...
    • Path coefficient analysis, a different approach to identify soil quality indicators 

      Ramos, Júlio C.; Bertol, Ildegardis; Bandeira, Douglas Henrique; Barbosa, Fabrício T.; Zangiski, Fernanda (Universidade Federal de Campina Grande, 2019-06-04)
      [Abstract] Soil quality indicators related to water erosion reduction can assist with correct soil management. The objective of this research was to identify some variables that could be used as soil quality indicators ...
    • Pedotransfer function to estimate the soil structural “S” index and spatial variability in an oxisol within a livestock farming system 

      Tavanti, Renan; Montanari, Rafael; Panosso, Alan Rodrigo; Freddi, Onã da Silva; Paz González, Antonio (Associação Brasileira de Engenharia Agrícola, 2020-02-17)
      [Abstract]: Various attributes are often required to build soil quality indicators. However, determining these attributes is time-consuming and requires several specific devices. Thus, it is desirable to develop indexes ...