Long-term no-fire conservation agriculture diversifies production on a sandy Acrisol in Acre state, southwestern Brazilian Amazon.

The conservation agriculture (CA) needs "no-fire" (no-fire CA) in Brazilian Amazon, where slash-and-burn agriculture (SBA) is still common, which decrease soil organic matter (SOM) and increase greenhouse gases emissions and decrease crops production. Soil tillage to smallholders do not is actually a common practice nowadays. But this scenario is changing by the regional agribusiness. In the Juruá region of Acre State, where this study was carried out, predominate sandy soils. Cassava (Manihot esculeta, Crantz) is the main crop and almost monoculture in smallholder farming. But cultivation of cassava is SBA-based, i.e. a low technological system. Soil tillage associated to soil sandy features and total annual precipitation in Juruá can increase erosion because cassava cultivation starting is coincident to begin of rainfall regional station. This corolarium indicate to a decreasing productivity of cassava and likewise to others agricultural crops. The hypothesis of this study is that no-fire CA to smallholder farming is part of the solution of scenario presented. To test this hypothesis no-fire CA models were evaluated in comparison to SBA. Economic and environmental results are presented.

Bibliographic Details

Main Authors:	COSTA, F. de S., DICK, D. P., CAMPOS FILHO, M. D., LAMBERTUCCI, D. M., TAVELLA, L. B.
Other Authors:	FALBERNI DE SOUZA COSTA, CPAF-AC; DEBORAH PINHEIRO DICK, Federal University of Rio Grande do Sul (UFRGS); MANOEL DELSON CAMPOS FILHO, CPAF-AC; DANIEL MOREIRA LAMBERTUCCI, CPAF-AC; LEONARDO BARRETO TAVELLA, Federal University of Acre (Ufac).
Format:	Anais e Proceedings de eventos biblioteca
Language:	Ingles English
Published:	2022-01-28
Subjects:	Agricultura conservacionista, Conservation agriculture, Agricultura de conservación, Explotación agrícola familiar, Yuca, Análisis económico, Análisis de costo-beneficio, Regional do Juruá (AC), Acre, Amazônia Ocidental, Western Amazon, Amazonia Occidental, Agricultura Familiar, Mandioca, Manihot Esculenta, Análise Econômica, Análise de Custo-Benefício, Family farms, Cassava, Economic analysis, Cost benefit analysis,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139444
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