Nitrogen and micronutrients on grain yield of cowpea inoculated
DOI:
https://doi.org/10.5433/1679-0359.2013v34n4p1577Keywords:
Fertilization, N2 biologic fixation, Vigna unguiculata.Abstract
This work aimed to study the effect of nitrogen and micronutrients addition on nodulation and on the productivity of cowpea inoculated with strain INPA 03 11B. The study was carried out in the experimental area of Universidade Federal do Piauí, Bom Jesus, PI. The experiment was a complete randomized block, with four replications and a 5 x 2 factorial arrangement. Treatments consisted of five nitrogen doses (0, 35, 70, 105, 140 kg ha¹), associated with and without foliar micronutrients application (300 g ha¹ boric acid; 500 g ha¹ copper sulphate, manganese sulphate, zinc sulphate and 60 g ha¹ ammonium molibdate). Nodulation, shoot, root and total dry mass, relative efficiency, components of yield and crop productivity, besides N accumulation in shoot and grains were evaluated. Fresh and dry mass of nodules reduced linearly with the increase of N doses. Yield components were not affected by nitrogen and micronutrients fertilization. The application of micronutrients in the absence of nitrogen promoted an increase of 12.4% in grain yield of cowpea inoculated.
Downloads
Metrics
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2013 Semina: Ciências Agrárias
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
