Nitrogen fertilization in corn with urea coated with different sources of polymers
In view of theoretic increase in efficiency of nitrogen fertilizers for controlled release, this study aimed to evaluate the effect of nitrogen, using conventional urea and ureas coated by different polymers, in the leaf N content, leaf chlorophyll index, components production and grain yield of irr...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2014-02-01
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| Series: | Semina: Ciências Agrárias |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/13168 |
| _version_ | 1818177916857483264 |
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| author | Márcio Valderrama Salatiér Buzetti Marcelo Carvalho Minhoto Teixeira Filho Cleiton Gredson Sabin Benett Marcelo Andreotti |
| author_facet | Márcio Valderrama Salatiér Buzetti Marcelo Carvalho Minhoto Teixeira Filho Cleiton Gredson Sabin Benett Marcelo Andreotti |
| author_sort | Márcio Valderrama |
| collection | DOAJ |
| description | In view of theoretic increase in efficiency of nitrogen fertilizers for controlled release, this study aimed to evaluate the effect of nitrogen, using conventional urea and ureas coated by different polymers, in the leaf N content, leaf chlorophyll index, components production and grain yield of irrigated corn in growing season and second crop in the savannah region. The experiments were conducted at experimental area belonging to UNESP – Ilha Solteira, located in Selvíria – MS in a dystrophic Red Latosol (Haplustox), clayey texture. The statistical design was randomized blocks, with four repetitions, in a 4 x 4 factorial arrangement, being four nitrogen doses (0, 40, 80 and 120 kg ha-1) applied at sidedressing and four urea sources (a conventional urea and three coated with polymers in different compositions and concentrations). The coated ureas are not efficient under the soil and climate conditions studied of the savanna, because they provided results similar to the conventional urea for the production components and grain yield of corn in the first and second crop. The increment of nitrogen doses increase linearly the leaf N content and grain yield of corn in the first and second crop. |
| first_indexed | 2024-12-11T20:39:41Z |
| format | Article |
| id | doaj.art-314feb7dfbb54f72be78fd23a080c793 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-11T20:39:41Z |
| publishDate | 2014-02-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-314feb7dfbb54f72be78fd23a080c7932022-12-22T00:51:32ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592014-02-0135265967010.5433/1679-0359.2014v35n2p659Nitrogen fertilization in corn with urea coated with different sources of polymersMárcio Valderrama0Salatiér Buzetti 1Marcelo Carvalho Minhoto Teixeira Filho 2Cleiton Gredson Sabin Benett 3Marcelo Andreotti 4Universidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Estadual Paulista Júlio de Mesquita FilhoUniversidade Federal de GoiásUniversidade Estadual Paulista Júlio de Mesquita FilhoIn view of theoretic increase in efficiency of nitrogen fertilizers for controlled release, this study aimed to evaluate the effect of nitrogen, using conventional urea and ureas coated by different polymers, in the leaf N content, leaf chlorophyll index, components production and grain yield of irrigated corn in growing season and second crop in the savannah region. The experiments were conducted at experimental area belonging to UNESP – Ilha Solteira, located in Selvíria – MS in a dystrophic Red Latosol (Haplustox), clayey texture. The statistical design was randomized blocks, with four repetitions, in a 4 x 4 factorial arrangement, being four nitrogen doses (0, 40, 80 and 120 kg ha-1) applied at sidedressing and four urea sources (a conventional urea and three coated with polymers in different compositions and concentrations). The coated ureas are not efficient under the soil and climate conditions studied of the savanna, because they provided results similar to the conventional urea for the production components and grain yield of corn in the first and second crop. The increment of nitrogen doses increase linearly the leaf N content and grain yield of corn in the first and second crop.http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/13168 |
| spellingShingle | Márcio Valderrama Salatiér Buzetti Marcelo Carvalho Minhoto Teixeira Filho Cleiton Gredson Sabin Benett Marcelo Andreotti Nitrogen fertilization in corn with urea coated with different sources of polymers Semina: Ciências Agrárias |
| title | Nitrogen fertilization in corn with urea coated with different sources of polymers |
| title_full | Nitrogen fertilization in corn with urea coated with different sources of polymers |
| title_fullStr | Nitrogen fertilization in corn with urea coated with different sources of polymers |
| title_full_unstemmed | Nitrogen fertilization in corn with urea coated with different sources of polymers |
| title_short | Nitrogen fertilization in corn with urea coated with different sources of polymers |
| title_sort | nitrogen fertilization in corn with urea coated with different sources of polymers |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/13168 |
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