Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality
ABSTRACT The objective of this study was to determine the effect of Azospirillum brasilense inoculation and different nitrogen (N) rates applied as topdressing on the productivity of a maize crop and the nutritional value of maize silage. Two experiments were conducted in the 2012/2013 and 2013/2014...
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| Format: | Article |
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Sociedade Brasileira de Zootecnia
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| Series: | Revista Brasileira de Zootecnia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000900722&lng=en&tlng=en |
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| author | Fernando Reimann Skonieski Julio Viégas Thomas Newton Martin José Laerte Nörnberg Gilmar Roberto Meinerz Tiago João Tonin Priscila Bernhard Marcela Tostes Frata |
| author_facet | Fernando Reimann Skonieski Julio Viégas Thomas Newton Martin José Laerte Nörnberg Gilmar Roberto Meinerz Tiago João Tonin Priscila Bernhard Marcela Tostes Frata |
| author_sort | Fernando Reimann Skonieski |
| collection | DOAJ |
| description | ABSTRACT The objective of this study was to determine the effect of Azospirillum brasilense inoculation and different nitrogen (N) rates applied as topdressing on the productivity of a maize crop and the nutritional value of maize silage. Two experiments were conducted in the 2012/2013 and 2013/2014 harvests. Treatments were distributed in a randomized block design in a factorial arrangement, which consisted of two maize hybrids (AS 1572 and Defender) coupled with nitrogen rates (0, 60, 120, 240, and 480 kg ha-1), inoculated or uninoculated with A. brasilense. Inoculated seeds were treated with the A. brasilense strains Ab-V5 and Ab-V6. Inoculation with A. brasilense showed interaction with the hybrids, agricultural years, and nitrogen rates for the maize plant yield. In the 2012/2013 agricultural year, inoculation increased the AS 1572 hybrid silage yield by 6.16% and, in the 2013/2014 harvest, A. brasilense inoculation produced an increase of 16.15% for the Defender hybrid. Nitrogen fertilization applied at 0, 60, and 120 kg ha-1 N benefited the plants inoculated with A. brasilense. The statistical equations revealed that N rates between 0 and 184 kg ha-1 in A. brasilense inoculated plants raised the plant productivity for silage when compared with the control plants. Regarding the nutritional value of the silage, inoculation with A. brasilense increased the ether extract levels and total digestible nutrients and reduced the amount of acid detergent fiber. For all this, positive results with inoculation for silage yield are dependent on nitrogen fertilization rate. Inoculation with A. brasilense can promote changes in the maize silage quality, but with obtained results it is not possible to definitely conclude upon nutritive value of maize silage. |
| first_indexed | 2024-12-13T22:26:53Z |
| format | Article |
| id | doaj.art-0143a6f083dd48768453945ae82465ab |
| institution | Directory Open Access Journal |
| issn | 1806-9290 |
| language | English |
| last_indexed | 2024-12-13T22:26:53Z |
| publisher | Sociedade Brasileira de Zootecnia |
| record_format | Article |
| series | Revista Brasileira de Zootecnia |
| spelling | doaj.art-0143a6f083dd48768453945ae82465ab2022-12-21T23:29:11ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-929046972273010.1590/s1806-92902017000900003S1516-35982017000900722Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage qualityFernando Reimann SkonieskiJulio ViégasThomas Newton MartinJosé Laerte NörnbergGilmar Roberto MeinerzTiago João ToninPriscila BernhardMarcela Tostes FrataABSTRACT The objective of this study was to determine the effect of Azospirillum brasilense inoculation and different nitrogen (N) rates applied as topdressing on the productivity of a maize crop and the nutritional value of maize silage. Two experiments were conducted in the 2012/2013 and 2013/2014 harvests. Treatments were distributed in a randomized block design in a factorial arrangement, which consisted of two maize hybrids (AS 1572 and Defender) coupled with nitrogen rates (0, 60, 120, 240, and 480 kg ha-1), inoculated or uninoculated with A. brasilense. Inoculated seeds were treated with the A. brasilense strains Ab-V5 and Ab-V6. Inoculation with A. brasilense showed interaction with the hybrids, agricultural years, and nitrogen rates for the maize plant yield. In the 2012/2013 agricultural year, inoculation increased the AS 1572 hybrid silage yield by 6.16% and, in the 2013/2014 harvest, A. brasilense inoculation produced an increase of 16.15% for the Defender hybrid. Nitrogen fertilization applied at 0, 60, and 120 kg ha-1 N benefited the plants inoculated with A. brasilense. The statistical equations revealed that N rates between 0 and 184 kg ha-1 in A. brasilense inoculated plants raised the plant productivity for silage when compared with the control plants. Regarding the nutritional value of the silage, inoculation with A. brasilense increased the ether extract levels and total digestible nutrients and reduced the amount of acid detergent fiber. For all this, positive results with inoculation for silage yield are dependent on nitrogen fertilization rate. Inoculation with A. brasilense can promote changes in the maize silage quality, but with obtained results it is not possible to definitely conclude upon nutritive value of maize silage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000900722&lng=en&tlng=endiazotrophic bacteriamorphological compositionnitrogen fertilizationnutritional valuesilage yield |
| spellingShingle | Fernando Reimann Skonieski Julio Viégas Thomas Newton Martin José Laerte Nörnberg Gilmar Roberto Meinerz Tiago João Tonin Priscila Bernhard Marcela Tostes Frata Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality Revista Brasileira de Zootecnia diazotrophic bacteria morphological composition nitrogen fertilization nutritional value silage yield |
| title | Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| title_full | Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| title_fullStr | Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| title_full_unstemmed | Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| title_short | Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| title_sort | effect of seed inoculation with azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality |
| topic | diazotrophic bacteria morphological composition nitrogen fertilization nutritional value silage yield |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000900722&lng=en&tlng=en |
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