Now showing items 1-2 of 2

    • Depletion of the heaviest stable N isotope is associated with NH4+/NH3 toxicity in NH4+-fed plants 

      Ariz, Idoia Upna; Cruz, Cristina; Morán Juez, José Fernando Upna; González Moro, María B.; García Olaverri, Carmen Upna; González Murua, Carmen; Martins Loucao, María A.; Aparicio Tejo, Pedro María Upna (BioMed Central, 2011)   Artículo / Artikulua  OpenAccess
      Background: In plants, nitrate (NO3-) nutrition gives rise to a natural N isotopic signature (δ15N), which correlates with the δ15N of the N source. However, little is known about the relationship between the δ15N of the ...
    • Isotopic composition of maize as related to N-fertilization and irrigation in the Mediterranean region 

      Lasa Larrea, Berta; Irañeta, Iosu; Muro Erreguerena, Julio Upna; Irigoyen Iriarte, Ignacio Upna; Aparicio Tejo, Pedro María Upna (Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, 2011)   Artículo / Artikulua  OpenAccess
      Nitrate leaching as a result of excessive application of N-fertilizers and water use is a major problem of vulnerable regions. The farming of maize requires high N fertilization and water inputs in Spain. Isotopic ...