Data/hora: 11/06/2024 09:12:33

Provedor de dados: | 70
País: | Brazil
Título: | Energetic analysis of landrace varieties and hybrids of corn produced in different technological levels of management
Autores: | Araujo,Alisson V. de; Brandão Junior,Delacyr da S.; Colen,Fernando.
Data: | 2013-08-01
Ano: | 2013
Palavras-chave: | Energy balance; Cultural efficiency; Productive energy efficiency; Sustainability; Zea mays L.
Resumo: | The aim of this study was to analyze, under the energetic point of view, the cultivation of corn in three management systems (low, medium and high-tech), using two landrace varieties ('Argentino' and 'BR da Várzea'), a double hybrid cultivar (SHS 4080) and a simple hybrid (IAC 8333). Five performance indicators were used: energy efficiency, liquid cultural energy, cultural efficiency, energy balance and productive energy efficiency. From the perspective of family farming, it was verified the largest social importance of the systems under low and medium levels of technology, due to the increase employment capacity of rural labor. The liquid cultural energy and energy balance were more favorable for the system under high technological level, unlike cultural efficiency and productive energy efficiency, which were significantly higher for medium and low technological levels. The variety 'Argentino' showed lower productive energy efficiency. The variety 'BR da Várzea', on the other hand, presented the potential to generate energy as much as the hybrids. In general, the biggest sustainability in the corn crop was achieved when the management system under medium and lower levels of technology were used.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162013000400004
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/S0100-69162013000400004
Formato: | text/html
Fonte: | Engenharia Agrícola  v.33 n.4 2013
Fonte: | info:eu-repo/semantics/openAccess