Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn
Fertilization management, mainly nitrogen, is one of the factors that most directly affect corn grain yield. Nitrogen dynamics in the soil is quite complex and its main source currently used in corn production, the urea, undergo intense losses in its conventional form, mainly by volatilization and l...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2020-02-01
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| Series: | Bioscience Journal |
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| Online Access: | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/45166 |
| _version_ | 1819085850602897408 |
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| author | Daiane de Souza Bueno Sebastião Ferreira de Lima Matildes Blanco Paulo Carteri Coradi |
| author_facet | Daiane de Souza Bueno Sebastião Ferreira de Lima Matildes Blanco Paulo Carteri Coradi |
| author_sort | Daiane de Souza Bueno |
| collection | DOAJ |
| description | Fertilization management, mainly nitrogen, is one of the factors that most directly affect corn grain yield. Nitrogen dynamics in the soil is quite complex and its main source currently used in corn production, the urea, undergo intense losses in its conventional form, mainly by volatilization and leaching. Thus, the aim of this study was to assess the effect of forms, sources, and times of nitrogen application on the second crop corn. The experiment was conducted in 2016 in the Fundação Chapadão, Chapadão do Sul, MS, Brazil. The sources conventional urea, polymer-coated urea, and foliar N (8 treatments) were used as follows: control (without N addition), conventional urea (single in V3 and split in V3 and V6), polymer-coated urea (single in V3 and split in V3 and V6), conventional urea + foliar N (conventional urea in V6 and foliar in pre-flowering), polymer-coated urea + foliar N (polymer-coated urea in V6 and foliar in pre-flowering), and foliar N (split in V6 and pre-flowering). The variables stem diameter, ear index, ear length, number of grains per row, number of rows per ear, plant height, first ear height, leaf chlorophyll index, leaf N index, leaf values of Ca, Mg, Fe, Zn, Mn, and Cu, 100-grain weight, and grain yield were assessed. Nitrogen application in the form of conventional urea, polymer-coated urea, and foliar N (single or split) for second crop corn does not result in distinct benefits for the crop. Thus, attention should be paid to the commercialization of the product, which has prices established according to nitrogen forms, but without result, for example, in grain yield, which in fact will compose the producer income. The applied nitrogen form and mode of application were positive only to increase the contents of Ca, Mg, Zn, and Mn in the leaves of second crop corn. Ca was favored by the use of conventional urea and split conventional urea, Mg and Mn were only benefited by foliar N application, and Zn was benefited by the use of conventional urea, split conventional urea, conventional urea + foliar N, and polymer-coated urea+foliar N. |
| first_indexed | 2024-12-21T21:10:55Z |
| format | Article |
| id | doaj.art-d9cab3aaec104df5b967682183b21ff6 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-21T21:10:55Z |
| publishDate | 2020-02-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-d9cab3aaec104df5b967682183b21ff62022-12-21T18:50:09ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632020-02-0136210.14393/BJ-v36n2a2020-4516645166Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop cornDaiane de Souza Bueno0Sebastião Ferreira de Lima1Matildes Blanco2Paulo Carteri Coradi3Universidade Federal de Mato Grosso do Sul (UFMS), Campus de Chapadão do Sul, MS.Universidade Federal de Mato Grosso do Sul (UFMS), Campus de Chapadão do Sul, MS.Universidade Federal de Mato Grosso do Sul (UFMS), Campus de Chapadão do Sul, MS.Universidade Federal de Santa Maria (UFSM), Campus Cachoeira do Sul (CS).Fertilization management, mainly nitrogen, is one of the factors that most directly affect corn grain yield. Nitrogen dynamics in the soil is quite complex and its main source currently used in corn production, the urea, undergo intense losses in its conventional form, mainly by volatilization and leaching. Thus, the aim of this study was to assess the effect of forms, sources, and times of nitrogen application on the second crop corn. The experiment was conducted in 2016 in the Fundação Chapadão, Chapadão do Sul, MS, Brazil. The sources conventional urea, polymer-coated urea, and foliar N (8 treatments) were used as follows: control (without N addition), conventional urea (single in V3 and split in V3 and V6), polymer-coated urea (single in V3 and split in V3 and V6), conventional urea + foliar N (conventional urea in V6 and foliar in pre-flowering), polymer-coated urea + foliar N (polymer-coated urea in V6 and foliar in pre-flowering), and foliar N (split in V6 and pre-flowering). The variables stem diameter, ear index, ear length, number of grains per row, number of rows per ear, plant height, first ear height, leaf chlorophyll index, leaf N index, leaf values of Ca, Mg, Fe, Zn, Mn, and Cu, 100-grain weight, and grain yield were assessed. Nitrogen application in the form of conventional urea, polymer-coated urea, and foliar N (single or split) for second crop corn does not result in distinct benefits for the crop. Thus, attention should be paid to the commercialization of the product, which has prices established according to nitrogen forms, but without result, for example, in grain yield, which in fact will compose the producer income. The applied nitrogen form and mode of application were positive only to increase the contents of Ca, Mg, Zn, and Mn in the leaves of second crop corn. Ca was favored by the use of conventional urea and split conventional urea, Mg and Mn were only benefited by foliar N application, and Zn was benefited by the use of conventional urea, split conventional urea, conventional urea + foliar N, and polymer-coated urea+foliar N.http://www.seer.ufu.br/index.php/biosciencejournal/article/view/45166fertilizationn sourcesfoliar application |
| spellingShingle | Daiane de Souza Bueno Sebastião Ferreira de Lima Matildes Blanco Paulo Carteri Coradi Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn Bioscience Journal fertilization n sources foliar application |
| title | Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| title_full | Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| title_fullStr | Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| title_full_unstemmed | Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| title_short | Management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| title_sort | management of nitrogen fertilization on agronomic and nutritional characteristics in second crop corn |
| topic | fertilization n sources foliar application |
| url | http://www.seer.ufu.br/index.php/biosciencejournal/article/view/45166 |
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