Production of yam fetilized with rates of N and bovine manure

Damiana Ferreira da Silva Dantas, Ademar Pereira de Oliveira, Tony Andreson Guedes Dantas, Natália Vital da Silva Bandeira, Antônio Dantas Gomes Neto

Abstract


The objective of this study was to evaluate the behavior of the yam fertilized with rates of N and bovine manure. The study was conducted at the Universidade Federal da Paraíba, Areia-PB, in the period January to December 2010, the experimental design was randomized in blocks, with treatments distributed in 6 x 2 factorial, in four repetitions,were evaluated the rates of N (0, 50, 100, 150, 200 and 250 kg ha-1) in soil with and without bovine manure. The average mass of tubers of 2.1 and 1.9 kg were produced with the use of 141 and 118 kg ha-1 of N, respectively, with and without bovine manure,. The total productivity of tubers with bovine manure was 24 t ha-1 in the dose of 133 kg ha-1 of N, and without bovine manure obtained average productivity of 23 t ha-1. The maximum productivity of commercial tubers of 21 and 19 t ha-1 in rates of 99 and 154 kg ha-1 of N, with and without bovine manure, respectively. The leaf content of N of 33.74 and 34.51 g kg-1 in the rates of 148 and 250 kg ha-1 of N, respectively, in soil with and without bovine manure.


Keywords


Dioscorea cayennensis; Nitrogen fertilization; Organic fertilization; Yield.



DOI: http://dx.doi.org/10.5433/1679-0359.2013v34n6Supl1p3389

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional