Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹
This study evaluated the effect of hairy vetch (Vicia villosa Roth) as cover crop on maize nutrition and yield under no tillage using isotope techniques. For this purpose, three experiments were carried out: 1) quantification of biological nitrogen fixation (BNF) in hairy vetch; 2) estimation of the...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Sociedade Brasileira de Ciência do Solo
2011-08-01
|
Series: | Revista Brasileira de Ciência do Solo |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400028&lng=en&tlng=en |
id |
doaj-e8c78b32ba814bbbb15f41301057640a |
---|---|
record_format |
Article |
spelling |
doaj-e8c78b32ba814bbbb15f41301057640a2021-01-02T03:23:40ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572011-08-013541337134510.1590/S0100-06832011000400028S0100-06832011000400028Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹José Alan de Almeida AcostaTelmo Jorge Carneiro Amado0Andreas de Neergaard1Mads Vinther2Leandro Souza da Silva3Rodrigo da Silveira NicolosoUniversidade Federal de Santa MariaUniversity of CopenhagenUniversity of CopenhagenUniversidade Federal de Santa MariaThis study evaluated the effect of hairy vetch (Vicia villosa Roth) as cover crop on maize nutrition and yield under no tillage using isotope techniques. For this purpose, three experiments were carried out: 1) quantification of biological nitrogen fixation (BNF) in hairy vetch; 2) estimation of the N release rate from hairy vetch residues on the soil surface; 3) quantification of 15N recovery by maize from labeled hairy vetch under three rates of mineral N fertilization. This two-year field experiment was conducted on a sandy Acrisol (FAO soil classification) or Argissolo Vermelho distrófico arênico (Brazilian Soil Classification), at a mean annual temperature of 18 ºC and mean annual rainfall of 1686 mm. The experiment was arranged in a double split-plot factorial design with three replications. Two levels of hairy vetch residue (50 and 100 % of the aboveground biomass production) were distributed on the surface of the main plots (5 x 12 m). Maize in the sub-plots (5 x 4 m) was fertilized with three N rates (0, 60, and 120 kg ha-1 N), with urea as N source. The hairy vetch-derived N recovered by maize was evaluated in microplots (1.8 x 2.2 m). The BFN of hairy vetch was on average 72.4 %, which represents an annual input of 130 kg ha-1 of atmospheric N. The N release from hairy vetch residues was fast, with a release of about 90 % of total N within the first four weeks after cover crop management and soil residue application. The recovery of hairy vetch 15N by maize was low, with an average of 12.3 % at harvest. Although hairy vetch was not directly the main source of maize N nutrition, the crop yield reached 8.2 Mg ha-1, without mineral fertilization. There was an apparent synergism between hairy vetch residue application and the mineral N fertilization rate of 60 kg ha-1, confirming the benefits of the combination of organic and inorganic N sources for maize under no tillage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400028&lng=en&tlng=enconservação do solo15N recuperadoculturas de coberturaN absorvido |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
José Alan de Almeida Acosta Telmo Jorge Carneiro Amado Andreas de Neergaard Mads Vinther Leandro Souza da Silva Rodrigo da Silveira Nicoloso |
spellingShingle |
José Alan de Almeida Acosta Telmo Jorge Carneiro Amado Andreas de Neergaard Mads Vinther Leandro Souza da Silva Rodrigo da Silveira Nicoloso Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ Revista Brasileira de Ciência do Solo conservação do solo 15N recuperado culturas de cobertura N absorvido |
author_facet |
José Alan de Almeida Acosta Telmo Jorge Carneiro Amado Andreas de Neergaard Mads Vinther Leandro Souza da Silva Rodrigo da Silveira Nicoloso |
author_sort |
José Alan de Almeida Acosta |
title |
Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
title_short |
Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
title_full |
Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
title_fullStr |
Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
title_full_unstemmed |
Effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
title_sort |
effect of 15n-labeled hairy vetch and nitrogen fertilization on maize nutrition and yield under no-tillage¹ |
publisher |
Sociedade Brasileira de Ciência do Solo |
series |
Revista Brasileira de Ciência do Solo |
issn |
1806-9657 |
publishDate |
2011-08-01 |
description |
This study evaluated the effect of hairy vetch (Vicia villosa Roth) as cover crop on maize nutrition and yield under no tillage using isotope techniques. For this purpose, three experiments were carried out: 1) quantification of biological nitrogen fixation (BNF) in hairy vetch; 2) estimation of the N release rate from hairy vetch residues on the soil surface; 3) quantification of 15N recovery by maize from labeled hairy vetch under three rates of mineral N fertilization. This two-year field experiment was conducted on a sandy Acrisol (FAO soil classification) or Argissolo Vermelho distrófico arênico (Brazilian Soil Classification), at a mean annual temperature of 18 ºC and mean annual rainfall of 1686 mm. The experiment was arranged in a double split-plot factorial design with three replications. Two levels of hairy vetch residue (50 and 100 % of the aboveground biomass production) were distributed on the surface of the main plots (5 x 12 m). Maize in the sub-plots (5 x 4 m) was fertilized with three N rates (0, 60, and 120 kg ha-1 N), with urea as N source. The hairy vetch-derived N recovered by maize was evaluated in microplots (1.8 x 2.2 m). The BFN of hairy vetch was on average 72.4 %, which represents an annual input of 130 kg ha-1 of atmospheric N. The N release from hairy vetch residues was fast, with a release of about 90 % of total N within the first four weeks after cover crop management and soil residue application. The recovery of hairy vetch 15N by maize was low, with an average of 12.3 % at harvest. Although hairy vetch was not directly the main source of maize N nutrition, the crop yield reached 8.2 Mg ha-1, without mineral fertilization. There was an apparent synergism between hairy vetch residue application and the mineral N fertilization rate of 60 kg ha-1, confirming the benefits of the combination of organic and inorganic N sources for maize under no tillage. |
topic |
conservação do solo 15N recuperado culturas de cobertura N absorvido |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400028&lng=en&tlng=en |
work_keys_str_mv |
AT josealandealmeidaacosta effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 AT telmojorgecarneiroamado effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 AT andreasdeneergaard effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 AT madsvinther effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 AT leandrosouzadasilva effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 AT rodrigodasilveiranicoloso effectof15nlabeledhairyvetchandnitrogenfertilizationonmaizenutritionandyieldundernotillage1 |
_version_ |
1724361256443314176 |