Frontier Expansion in the Amazon: Balancing Development and Sustainability

30 de julho de 2002

jul 30, 2002

Georgia O. Carvalho, Daniel Nepstad, David McGrath, Maria del Carmen Vera Diaz, Márcio Santilli, Ana Cristina Barros

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Deep soils modify environmental consequences of increased nitrogen fertilizer use in intensifying Amazon agriculture

Deep soils modify environmental consequences of increased nitrogen fertilizer use in intensifying Amazon agriculture

Intensively-managed croplands and nitrogen (N) fertilizer use are expanding rapidly in tropical regions. We quantified fertilizer responses of maize yield, N2O emissions, and N leaching in an Amazon soybeanmaize double-cropping system on deep, highly-weathered soils in Mato Grosso, Brazil.