Resposta do pinhão-manso à aplicação de níveis de irrigação e doses de adubação potássica
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Data
2012
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Resumo
Jatropha curcas crop is raising attention as an alternative crop for biodiesel production. Despite the
irrigation and mineral fertilization to promote increase of Jatropha curcas yield, few studies have been
conducted on this issue. The purpose of this work was to evaluate the growth and productivity of
Jatropha curcas , in response to irrigation management and potassium fertilization doses. The field
experiment was carried out at the Federal University of Lavras in the southern part of the State of Minas
Gerais. Four different irrigation depths, corresponding to different fractions (0, 40, 80, 120%) of the Class
A pan evaporation (ECA), and four potassium doses (30, 60, 90 and 120 kg ha -1 of K 2 O) were used as
treatments. To evaluate the growth and yield of Jatropha curcas seeds the data corresponding to first and
second year of cultivation was used. The results showed that plants irrigated showed better productivity
and initial growth, while potassium fertilization levels did not show significant effect.
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Jatropha curcas, Manejo de água, Nutrição mineral, Biocombustíveis, Biofuels, Mineral nutrition, Water management
Citação
OLIVEIRA, Ednaldo L.; FARIA, Manoel A.; EVANGELISTA, Adão W. P.; MELO, Paulo C. Resposta do pinhão-manso à aplicação de níveis de irrigação e doses de adubação potássica. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 16, n. 6, p. 539-598, 2012.