Nitrogen fertilization strategies in the cultivation of Cactus pear in Brazilian Savannah localities

Authors

  • Keuven dos Santos Nascimento Animal Science Department, São Paulo State University “Júlio de Mesquita Filho”- UNESP, Colina, São Paulo, Brasil.
  • Ricardo Loiola Edvan Animal Science Department, Federal University of Piauí -UFPI, Bom Jesus, Piauí, Brasil.
  • Tiago Gutemberg De Jesus Gomes Animal Science Department, São Paulo State University “Júlio de Mesquita Filho”- UNESP, Botucatu, São Paulo, Brasil.
  • Sheila Vilarindo Sousa Animal Science Department, Federal University of Piauí -UFPI, Bom Jesus, Piauí, Brasil.
  • Sammy Sidney Rocha Matias Agricultural Science Department, Piauí State University – UESPI, Corrente, Piauí, Brasil.
  • Maykon De Oliveira Ribeiro Animal Science Department, Federal University of Piauí -UFPI, Bom Jesus, Piauí, Brasil.
  • Luan Felipe Reis Camboim Animal Science Department, Federal University of Piauí -UFPI, Bom Jesus, Piauí, Brasil.

Keywords:

Agronomic traits, Biomass, Cactaceae, Nopalea cochinillifera,, Urea application

Abstract

This study aimed to evaluate the agronomic parameters and the chemical composition of the cactus pear variety Doce (Nopalea cochenillifera) in different Brazilian savannah localities, subjected to different nitrogen fertilization strategies. A randomized block design was used in this experiment, with a 2× 4 × 2 factorial arrangement with five replications. The factors corresponded to two application frequencies of nitrogen fertilization (30 days and 30/60 days), four nitrogen doses (0, 100, 200, 400 kg ha-1 year-1), and two cactus pear cultivation localities, with Locality 1 corresponding to the municipality of Curimatá and Locality 2 corresponding to the municipality of Riacho Frio. After one year of cultivation, there was no interaction (P>0.05) for frequency × doses × locality, doses × locality, and frequency × doses. The means observed for fresh and dry matter production varied from 57.0 to 68.0±2.9 t ha-1 and from 2.4 to 3.7±0.2 t ha-1, respectively. There was an interaction (P<0.05) between frequency × locality for fresh matter production, dry matter production, water-use efficiency, water accumulation, and carrying capacity. For the chemical composition, there was an interaction (P<0.01) between frequency × dose for the mineral content matter. Fertilization splitting associated with the highest nitrogen application dose resulted in better performance for the cactus pear variety of Doce grown in the Brazilian savannah region.

Published

2021-12-03

Issue

Section

Scientific Papers