Pereira, Engil Isadora Pujol.

Can biochar mitigate nitrogen losses in organic farming systems? by: Pereira, Engil Isadora Pujol.; University of California, Davis., Horticulture and Agronomy. (Electronic resources)

Soil nitrogen transformations under elevated carbon dioxide and ozone concentrations during the growing season of soybean. by: Pereira, Engil Isadora Pujol.; University of California, Davis., Horticulture and Agronomy. (Language materials, printed)