AGRONOMIC EFFICIENCY OF THE INTERCROPPING LETTUCE-ARUGULA FERTILIZED WITH ROOSTERTREE

Authors

  • Antonio Ewerton da Silva Almeida Departamento de Ciências Ambientais/UFERSA, Mossoró-RN, Brasil, 59.625-900.
  • Francisco Bezerra Neto Universidade Federal Rural do Semi-Árido, Departamento de Ciências Vegetais
  • Lucas Ramos Costa UFERSA
  • Maiele Leandro da Silva UFERSA
  • Jailma Suerda Silva de Lima Universidade Federal Rural do Semi-Árido, Departamento de Ciências Vegetais
  • Aurélio Paes Barros Júnior Universidade Federal Rural do Semi-Árido, Departamento de Ciências Vegetais

DOI:

https://doi.org/10.1590/1983-21252015v28n309rc

Keywords:

Green manure. Intercropping. Calotropis procera. Eruca sativa. Lactuca sativa.

Abstract

The present work aimed to evaluate the agronomic performance of lettuce-arugula intercropping fertilized with different amounts of roostertree biomass incorporated into the ground. The experiment was conducted during the period of September to November of 2011, in the research area of the Experimental Farm Rafael Fernandes, Universidade Federal Rural do Semi-Árido, Mossoró-RN. The experimental design used was randomized blocks with five treatments and four replications. The treatments consisted of the following biomass amounts of roostertree incorporated into the soil (5, 15, 25, 35, and 45 t ha- 1 on a dry basis). The characteristics evaluated in the vegetables were: height and diameter of plants (lettuce), number of leaves per plant, productivity (lettuce), yield of green mass (arugula) and dry mass of shoots. The efficiency of intercropping system was determined through the score of the canonical variable. The optimization of the agronomic performance of the lettuce intercropped with arugula was made possible with the incorporation of about 37 t ha-1 of roostertree into the ground. The use of roostertree as green manure is agronomically viable in the intercropping of lettuce and arugula besides contributing to a better use of environmental resources.

Author Biographies

  • Antonio Ewerton da Silva Almeida, Departamento de Ciências Ambientais/UFERSA, Mossoró-RN, Brasil, 59.625-900.
    Universidade Federal Rural do Semi-Árido, Departamento de Ciências Ambientais
  • Francisco Bezerra Neto, Universidade Federal Rural do Semi-Árido, Departamento de Ciências Vegetais
    Departamento de Ciências Vegetais
  • Lucas Ramos Costa, UFERSA
    Universidade Federal Rural do Semi-Árido, Departamento de Ciências Ambientais
  • Maiele Leandro da Silva, UFERSA
    Universidade Federal Rural do Semi-Árido, Departamento de Ciências Vegetais

Published

27-08-2015

Issue

Section

Agronomy