Plant density and nitrogen fertilization on common bean nutrition and yield

Rogério Peres Soratto, Tiago Aranda Catuchi, Emerson De Freitas Cordova De Souza, Jader Luis Nantes Garcia

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The objective of this work was to evaluate the effect of plant densities and sidedressed nitrogen (N) rates on nutrition and productive performance of the common bean cultivars IPR 139 and Pérola. For each cultivar, a randomized complete block experimental design was used in a split-plot arrangement, with three replicates. Plots consisted of three plant densities (5, 7, and 9 plants ha-1) and subplots of five N rates (0, 30, 60, 120, and 180 kg ha-1). Aboveground dry matter, leaf macro- and micronutrient concentrations, yield components, grain yield, and protein concentration in grains were evaluated. Lower plant densities (5 and 7 plants m-1) increased aboveground dry matter production and the number of pods per plant and did not reduce grain yield. In the absence of N fertilization, reduction of plant density decreased N concentration in common bean leaves. Nitrogen fertilization linearly increased dry matter and leaf N concentration, mainly at lower plant densities. Regardless of plant density, the N supply linearly increased grain yield of cultivars IPR 139 and Pérola by 17.3 and 52.2%, respectively.

Original languageEnglish (US)
Pages (from-to)670-678
Number of pages9
JournalRevista Caatinga
Volume30
Issue number3
DOIs
StatePublished - 2017

Bibliographical note

Funding Information:
We would like to thank the National Council for Scientific and Technological Development (CNPq) for providing an award for excellence in research to the first author.

Publisher Copyright:
© 2017, Universidade Federal Rural do Semi-Arid. All rights reserved.

Keywords

  • Grain yield
  • Mineral nutrition
  • Nitrogen
  • Phaseolus vulgaris
  • Plant population

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