Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production.
Urea and ammonium sulfate are principal nitrogen (N) sources for crop production. Two field experiments were conducted during three consecutive years to evaluate influence of urea and ammonium sulfate application on grain yield, soil pH, calcium (Ca) saturation, magnesium (Mg) saturation, base saturation, aluminum (Al) saturation, and acidity (H + Al) saturation in lowland rice production. Grain yield was significantly influenced by urea as well as ammonium sulfate fertilization. Soil pH linearly decreased with the application of N by ammonium sulfate and urea fertilizers. However, the magnitude of the pH decrease was greater by ammonium sulfate than by urea. The Ca and Mg saturations were decreased at the greater N rates compared to low rates of N by both the fertilizer sources. The Al and acidity saturation increased with increasing N rates by both the fertilizer sources. However, these acidity indices were increased more with the application of ammonium sulfate compared with urea. Rice grain yield had negative associations with pH, Ca saturation, Mg saturation, and base saturation and positive associations with Al and acidity saturation. This indicates that rice plant is tolerant to soil acidity.
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Format: | Artigo de periódico biblioteca |
Language: | English eng |
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2010-07-08
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Subjects: | Arroz, Oryza sativa, Acidez do solo, Ureia, Calcio, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/857069 https://doi.org/10.1080/00103624.2010.485237 |
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dig-alice-doc-8570692017-08-15T22:02:20Z Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. FAGERIA, N. K. SANTOS, A. B. dos MORAES, M. F. NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; M. F. MORAES, ESALQ. Arroz Oryza sativa Acidez do solo Ureia Calcio Urea and ammonium sulfate are principal nitrogen (N) sources for crop production. Two field experiments were conducted during three consecutive years to evaluate influence of urea and ammonium sulfate application on grain yield, soil pH, calcium (Ca) saturation, magnesium (Mg) saturation, base saturation, aluminum (Al) saturation, and acidity (H + Al) saturation in lowland rice production. Grain yield was significantly influenced by urea as well as ammonium sulfate fertilization. Soil pH linearly decreased with the application of N by ammonium sulfate and urea fertilizers. However, the magnitude of the pH decrease was greater by ammonium sulfate than by urea. The Ca and Mg saturations were decreased at the greater N rates compared to low rates of N by both the fertilizer sources. The Al and acidity saturation increased with increasing N rates by both the fertilizer sources. However, these acidity indices were increased more with the application of ammonium sulfate compared with urea. Rice grain yield had negative associations with pH, Ca saturation, Mg saturation, and base saturation and positive associations with Al and acidity saturation. This indicates that rice plant is tolerant to soil acidity. 2011-04-09T14:42:18Z 2011-04-09T14:42:18Z 2010-07-08 2010 2011-04-10T11:11:11Z Artigo de periódico Communications in Soil Science and Plant Analysis, v. 41, n. 13, p. 1565-1575, Jul. 2010. http://www.alice.cnptia.embrapa.br/alice/handle/doc/857069 https://doi.org/10.1080/00103624.2010.485237 en eng openAccess |
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Arroz Oryza sativa Acidez do solo Ureia Calcio Arroz Oryza sativa Acidez do solo Ureia Calcio |
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Arroz Oryza sativa Acidez do solo Ureia Calcio Arroz Oryza sativa Acidez do solo Ureia Calcio FAGERIA, N. K. SANTOS, A. B. dos MORAES, M. F. Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
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Urea and ammonium sulfate are principal nitrogen (N) sources for crop production. Two field experiments were conducted during three consecutive years to evaluate influence of urea and ammonium sulfate application on grain yield, soil pH, calcium (Ca) saturation, magnesium (Mg) saturation, base saturation, aluminum (Al) saturation, and acidity (H + Al) saturation in lowland rice production. Grain yield was significantly influenced by urea as well as ammonium sulfate fertilization. Soil pH linearly decreased with the application of N by ammonium sulfate and urea fertilizers. However, the magnitude of the pH decrease was greater by ammonium sulfate than by urea. The Ca and Mg saturations were decreased at the greater N rates compared to low rates of N by both the fertilizer sources. The Al and acidity saturation increased with increasing N rates by both the fertilizer sources. However, these acidity indices were increased more with the application of ammonium sulfate compared with urea. Rice grain yield had negative associations with pH, Ca saturation, Mg saturation, and base saturation and positive associations with Al and acidity saturation. This indicates that rice plant is tolerant to soil acidity. |
author2 |
NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; M. F. MORAES, ESALQ. |
author_facet |
NAND KUMAR FAGERIA, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; M. F. MORAES, ESALQ. FAGERIA, N. K. SANTOS, A. B. dos MORAES, M. F. |
format |
Artigo de periódico |
topic_facet |
Arroz Oryza sativa Acidez do solo Ureia Calcio |
author |
FAGERIA, N. K. SANTOS, A. B. dos MORAES, M. F. |
author_sort |
FAGERIA, N. K. |
title |
Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
title_short |
Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
title_full |
Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
title_fullStr |
Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
title_full_unstemmed |
Influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
title_sort |
influence of urea and ammonium sulfate on soil acidity indices in lowland rice production. |
publishDate |
2010-07-08 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/857069 https://doi.org/10.1080/00103624.2010.485237 |
work_keys_str_mv |
AT fageriank influenceofureaandammoniumsulfateonsoilacidityindicesinlowlandriceproduction AT santosabdos influenceofureaandammoniumsulfateonsoilacidityindicesinlowlandriceproduction AT moraesmf influenceofureaandammoniumsulfateonsoilacidityindicesinlowlandriceproduction |
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1756014200606425088 |