Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil
The objective of this study was to evaluate yield components, leaf nitrogen content and grain yield in corn as affected by row spacing, plant density and nitrogen topdressing. The experiment was conducted with the single-cross hybrid AG 8021, in the municipality of Toledo-PR, in an Oxisoil under no-...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal De Viçosa
2014-06-01
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| Series: | Revista Ceres |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2014000300018&tlng=en |
| _version_ | 1798026244097310720 |
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| author | Maria do Carmo Lana Leandro Rampim Tatiane Ohland Fernando Fávero |
| author_facet | Maria do Carmo Lana Leandro Rampim Tatiane Ohland Fernando Fávero |
| author_sort | Maria do Carmo Lana |
| collection | DOAJ |
| description | The objective of this study was to evaluate yield components, leaf nitrogen content and grain yield in corn as affected by row spacing, plant density and nitrogen topdressing. The experiment was conducted with the single-cross hybrid AG 8021, in the municipality of Toledo-PR, in an Oxisoil under no-tillage system, in the crop year 2005/ 2006. The experiment was arranged in a randomized block design and treatments in split-split-plots, with four replications. The two row spacings (0.45 and 0.90 m) were allocated in the main plots, the two plant densities (60,000 and 80,000 plants ha-1) were allocated in the subplots and the three nitrogen rates (80, 100, 120 and 140 kg ha-1 N) were allocated in the sub-subplots. Topdress nitrogen was applied using urea as N source. The rise of the plant population from 60,000 to 80,000 plants ha-1 and the application of topdress nitrogen resulted in increased production components. The application of topdress fertilization provided increase in leaf N content and grain yield for the spacings 0.45 m and 0.90 m. Yield was higher in the spacing 0.45 m than 0.90 m. Yield was higher with 60,000 plants than with 80,000 plants at 0.90 m, while at 0.45 m there was no difference in relation to the plant density. |
| first_indexed | 2024-04-11T18:32:11Z |
| format | Article |
| id | doaj.art-86af3a1798f645d4aa59a42739b8a85c |
| institution | Directory Open Access Journal |
| issn | 2177-3491 |
| language | English |
| last_indexed | 2024-04-11T18:32:11Z |
| publishDate | 2014-06-01 |
| publisher | Universidade Federal De Viçosa |
| record_format | Article |
| series | Revista Ceres |
| spelling | doaj.art-86af3a1798f645d4aa59a42739b8a85c2022-12-22T04:09:24ZengUniversidade Federal De ViçosaRevista Ceres2177-34912014-06-01613424433Spacing, population density and nitrogen fertilization in corn grown in an OxisoilMaria do Carmo Lana0Leandro Rampim1Tatiane Ohland2Fernando Fávero3Universidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáUniversidade Estadual do Oeste do ParanáThe objective of this study was to evaluate yield components, leaf nitrogen content and grain yield in corn as affected by row spacing, plant density and nitrogen topdressing. The experiment was conducted with the single-cross hybrid AG 8021, in the municipality of Toledo-PR, in an Oxisoil under no-tillage system, in the crop year 2005/ 2006. The experiment was arranged in a randomized block design and treatments in split-split-plots, with four replications. The two row spacings (0.45 and 0.90 m) were allocated in the main plots, the two plant densities (60,000 and 80,000 plants ha-1) were allocated in the subplots and the three nitrogen rates (80, 100, 120 and 140 kg ha-1 N) were allocated in the sub-subplots. Topdress nitrogen was applied using urea as N source. The rise of the plant population from 60,000 to 80,000 plants ha-1 and the application of topdress nitrogen resulted in increased production components. The application of topdress fertilization provided increase in leaf N content and grain yield for the spacings 0.45 m and 0.90 m. Yield was higher in the spacing 0.45 m than 0.90 m. Yield was higher with 60,000 plants than with 80,000 plants at 0.90 m, while at 0.45 m there was no difference in relation to the plant density.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2014000300018&tlng=enplant arrangementZea mays L.ureatopless nitrogen |
| spellingShingle | Maria do Carmo Lana Leandro Rampim Tatiane Ohland Fernando Fávero Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil Revista Ceres plant arrangement Zea mays L. urea topless nitrogen |
| title | Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil |
| title_full | Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil |
| title_fullStr | Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil |
| title_full_unstemmed | Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil |
| title_short | Spacing, population density and nitrogen fertilization in corn grown in an Oxisoil |
| title_sort | spacing population density and nitrogen fertilization in corn grown in an oxisoil |
| topic | plant arrangement Zea mays L. urea topless nitrogen |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2014000300018&tlng=en |
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