African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Nitrogen rates descendant from slow release fertilizers in maize top-dressing fertilization

Jaqueline Cazado Felix1, Tiago Roque Benetoli da Silva1*, Rafaela Alenbranth Migliavacca1, Flávia Rogério1, Juciléia Irian dos Santos1, Antonio Nolla1 and Deonir Secco2
  1Departamento de Ciências Agronômicas – Campus Avançado de Umuarama Universidade Estadual de Maringá, Av. Colombo, 5790, 87020-900, Maringá, P. R. Brazil. 2Unioeste – Cascavel – Paraná – Brazil.
Email: [email protected]

  •  Accepted: 24 September 2013
  •  Published: 31 October 2013

Abstract

 

Maize (Zea mays L.) is a very important cultivation for Brazilian agriculture and throughout the years it has been enlarged in the country. It is cultivated in two seasons, the summer plantation and the winter-maize which happens after the soy harvesting. Brazil is one of the biggest maize producers and in order to increase this production it is necessary to use certain practices such as nitrogen manuring, which can be realized with low release fertilizer, namely Sulfammo®. This work was realized in the vegetation house located in the State University of Maringá – Umuarama Campus, through which the objective was to evaluate the maize plants’ development with different doses of the product. The treatment obtained the following amounts: 0, 50, 100, 150 and 200 mg dm-³. The statistical variability includes the plant’s high, the culm’s diameter, the chlorophyll content, the plant’s color and the dry matter. It was observed that the increasing doses of nitrogen did not influence the maize plants.

 

Key words: Zea mays L., nitrogen manuring, agronomic characteristics.