Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect
ABSTRACT: Nitrogen (N) is the element supplied by the soil that limits the development of irrigated rice. The hypothesis of the present is that to meet higher demand for N by the plant due to the higher potential yield, it is not necessary to apply a higher dose of N fertilizer. This studyevaluated...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Maria
2022-05-01
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| Series: | Ciência Rural |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000100251&tlng=en |
| _version_ | 1818213526346399744 |
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| author | Gil Cunegatto Marques Neto Ledemar Carlos Vahl Rogério Oliveira de Sousa Milena Moreira Peres Marcos Lima Campos do Vale Filipe Selau Carlos |
| author_facet | Gil Cunegatto Marques Neto Ledemar Carlos Vahl Rogério Oliveira de Sousa Milena Moreira Peres Marcos Lima Campos do Vale Filipe Selau Carlos |
| author_sort | Gil Cunegatto Marques Neto |
| collection | DOAJ |
| description | ABSTRACT: Nitrogen (N) is the element supplied by the soil that limits the development of irrigated rice. The hypothesis of the present is that to meet higher demand for N by the plant due to the higher potential yield, it is not necessary to apply a higher dose of N fertilizer. This studyevaluated the efficiency of N utilization, the rate of growth and accumulations of N by plants and the grain yield of two rice cultivars, short cycle and medium cycle, with and without N fertilization. A field experiment was installed in the Rio Grande do Sul, southern Brazil. The treatment factors evaluated were cultivar, with medium and short cycles, with doses of 0 and 150 kg N ha-1. Growth curves, absorption rate, N content and leaf area index over time, root area and grain yield were analyzed. The medium cycle cultivar has a greater potential to explore the environment when compared to the short cycle rice cultivar, both for greater leaf area and root area per cultivation area, as well as for longer exploration times. Thus, the medium cycle cultivar has greater N utilization efficiency and higher grain yield. |
| first_indexed | 2024-12-12T06:05:41Z |
| format | Article |
| id | doaj.art-5da67528cab94c768d6080e83b62f86b |
| institution | Directory Open Access Journal |
| issn | 1678-4596 |
| language | English |
| last_indexed | 2024-12-12T06:05:41Z |
| publishDate | 2022-05-01 |
| publisher | Universidade Federal de Santa Maria |
| record_format | Article |
| series | Ciência Rural |
| spelling | doaj.art-5da67528cab94c768d6080e83b62f86b2022-12-22T00:35:17ZengUniversidade Federal de Santa MariaCiência Rural1678-45962022-05-0153110.1590/0103-8478cr20210584Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effectGil Cunegatto Marques Netohttps://orcid.org/0000-0002-5225-3515Ledemar Carlos Vahlhttps://orcid.org/0000-0001-8009-1536Rogério Oliveira de Sousahttps://orcid.org/0000-0001-9857-5766Milena Moreira Pereshttps://orcid.org/0000-0003-1751-3542Marcos Lima Campos do Valehttps://orcid.org/0000-0003-1101-1760Filipe Selau Carloshttps://orcid.org/0000-0002-3068-0399ABSTRACT: Nitrogen (N) is the element supplied by the soil that limits the development of irrigated rice. The hypothesis of the present is that to meet higher demand for N by the plant due to the higher potential yield, it is not necessary to apply a higher dose of N fertilizer. This studyevaluated the efficiency of N utilization, the rate of growth and accumulations of N by plants and the grain yield of two rice cultivars, short cycle and medium cycle, with and without N fertilization. A field experiment was installed in the Rio Grande do Sul, southern Brazil. The treatment factors evaluated were cultivar, with medium and short cycles, with doses of 0 and 150 kg N ha-1. Growth curves, absorption rate, N content and leaf area index over time, root area and grain yield were analyzed. The medium cycle cultivar has a greater potential to explore the environment when compared to the short cycle rice cultivar, both for greater leaf area and root area per cultivation area, as well as for longer exploration times. Thus, the medium cycle cultivar has greater N utilization efficiency and higher grain yield.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000100251&tlng=enirrigated ricenitrogen fertilizationgrowth curveabsorption |
| spellingShingle | Gil Cunegatto Marques Neto Ledemar Carlos Vahl Rogério Oliveira de Sousa Milena Moreira Peres Marcos Lima Campos do Vale Filipe Selau Carlos Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect Ciência Rural irrigated rice nitrogen fertilization growth curve absorption |
| title | Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| title_full | Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| title_fullStr | Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| title_full_unstemmed | Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| title_short | Understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| title_sort | understanding the dynamics of attributes of medium and short cycle rice cultivars under nitrogen effect |
| topic | irrigated rice nitrogen fertilization growth curve absorption |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000100251&tlng=en |
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