Seasonal variation of nutrient content in the foliage of Jatropha curcas

Autores

  • Rosiane de Lourdes Silva Lima Universidade Federal de Campina Grande
  • Carlos Alberto Vieira de Azevedo Universidade Federal de Campina Grande
  • Hans Raj Ghreyi Universidade Federal de Campina Grande
  • Valdinei Sofiatti Embrapa Algodão
  • Genelicio Sousa Carvalho Júnior Universidade Estadual da Paraíba
  • Jairo Osvaldo Cazetta Universidade Estadual da Paraíba
  • Nair Helena de Castro Arriel Embrapa Algodão

DOI:

https://doi.org/10.5433/1679-0359.2014v35n6p3031

Palavras-chave:

Sampling time, Mineral nutrition, Oilseed crop, Jatropha curcas.

Resumo

Physic nut (Jatropha curcas) is a perennial crop cultivated for the production of oil. Achieving high productivity depends on a profound knowledge of nutritional demand and the appropriate time for fertilization. This study aimed to register the seasonal variation of content of nutrients in leaf and to determine the most suitable time for performing analysis of leaf. For the study treatments were defined as a factorial combination of 10 months (February, March, April, May, June, August, September, October, November and December) and two provenances of leaf tissues (tissues originating from vegetative branches and coming from fruiting terminals). A completely randomized design was used with four replications and two plants were sampled each time. Foliar concentrations of N, P, K, Ca, Mg, S, Cu, Fe, Mn and Zn showed a wide variation between leaf shedding period through bloom and fruit filling, but the variation was narrow in the period before the leaf shedding phase or the phase of physiological rest. Therefore, the most appropriate time to assess the nutritional status of plants of Jatropha is at the end of the reproductive period during the 30 days preceeding leaf shedding.

 

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Biografia do Autor

Rosiane de Lourdes Silva Lima, Universidade Federal de Campina Grande

Pesquisadora PNPD/CNPq/UFCG, Universidade Federal de Campina Grande, UFCG, Campina Grande, PB, Brasil.

Carlos Alberto Vieira de Azevedo, Universidade Federal de Campina Grande

Prof., UFCG, Unidade Acadêmica de Engenharia Agrícola, Campina Grande, PB, Brasil.

Hans Raj Ghreyi, Universidade Federal de Campina Grande

Prof., UFCG, Unidade Acadêmica de Engenharia Agrícola, Campina Grande, PB, Brasil.

Valdinei Sofiatti, Embrapa Algodão

Pesquisador, Embrapa Algodão, Campina Grande, PB, Brasil.

Genelicio Sousa Carvalho Júnior, Universidade Estadual da Paraíba

Prof., Deptº de Tecnologia, UNESP, Universidade Estadual Paulista “Júlio de Mêsquista Filho”, Jaboticabal, SP, Brasil.

Jairo Osvaldo Cazetta, Universidade Estadual da Paraíba

Estagiário, Bolsista da Embrapa Algodão, Mestre em Ciências Agrária, Universidade Estadual da Paraíba, UEPB, Campina Grande, PB, Brasil.

Nair Helena de Castro Arriel, Embrapa Algodão

Pesquisadora, Embrapa Algodão, Campina Grande, PB, Brasil.

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Publicado

2014-12-09

Como Citar

Lima, R. de L. S., Azevedo, C. A. V. de, Ghreyi, H. R., Sofiatti, V., Carvalho Júnior, G. S., Cazetta, J. O., & Arriel, N. H. de C. (2014). Seasonal variation of nutrient content in the foliage of Jatropha curcas. Semina: Ciências Agrárias, 35(6), 3031–3042. https://doi.org/10.5433/1679-0359.2014v35n6p3031

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