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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
17/02/2017 |
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Data da última atualização: |
03/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MORAES, V. R.; BRITO, O. R.; FIORETTO, R. A.; MOREIRA, A. |
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Afiliação: |
UEL; UEL; UEL; ADONIS MOREIRA, CNPSO. |
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Título: |
Changes in chemical properties of an oxisol due to gypsum application. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, [S. l.], v. 47, n. 5, p. 571-580, 2016. |
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DOI: |
10.1080/00103624.2016.1141929 |
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Idioma: |
Inglês |
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Conteúdo: |
The increasing demand for fertilizers and the fact that the world reserves of phosphorus (P) and potassium (K) are depletable make appropriate soil management a critical factor in agriculture. Techniques for the fertilizer use and soil acidity corrective are becoming increasingly necessary to minimize the cost of yield and increase the nutrient efficiency. In view of the aforementioned, the present study aimed to assess the effects of gypsum application on the leach-ing of cations in the soil profile. A completely randomized design in a 5 × 4 factorial arrangement, with five replicates, was used. The treatments corresponded to five gypsum rates (0, 1, 2, 4, and 8 magnesium (Mg) ha?1) applied on broadcast of soil and at four depth sampled (0–5, 6–10, 11–15, and 16–20 cm). Gypsum application increased the fertility in depth, with the leaching of cations. There was an increasein soil pH, exchangeable K+ and calcium (Ca2+), sulfur (S–SO4 2-), P, boron (B), and manganese (Mn) concentration, cation exchange capacity (CEC), K+ and Ca2+ saturation, Ca2+/Mg 2+, Ca2+/K+, and K+/(Ca2++Mg2+) ratios, and electrical conductivity in soil depth. On the other hand, there was a decrease in exchangeable Mg2+ and potential acidity hydrogen and aluminum (H++Al3+), available silicon(Si), Mg2+saturation, and Ca2+/K+and Mg2+/K+ratio. These results demonstrate that the gypsum application in an Oxisol with 690 g kg?1 of clay improves the root system with a significant increase in the soil fertility in the profile. MenosThe increasing demand for fertilizers and the fact that the world reserves of phosphorus (P) and potassium (K) are depletable make appropriate soil management a critical factor in agriculture. Techniques for the fertilizer use and soil acidity corrective are becoming increasingly necessary to minimize the cost of yield and increase the nutrient efficiency. In view of the aforementioned, the present study aimed to assess the effects of gypsum application on the leach-ing of cations in the soil profile. A completely randomized design in a 5 × 4 factorial arrangement, with five replicates, was used. The treatments corresponded to five gypsum rates (0, 1, 2, 4, and 8 magnesium (Mg) ha?1) applied on broadcast of soil and at four depth sampled (0–5, 6–10, 11–15, and 16–20 cm). Gypsum application increased the fertility in depth, with the leaching of cations. There was an increasein soil pH, exchangeable K+ and calcium (Ca2+), sulfur (S–SO4 2-), P, boron (B), and manganese (Mn) concentration, cation exchange capacity (CEC), K+ and Ca2+ saturation, Ca2+/Mg 2+, Ca2+/K+, and K+/(Ca2++Mg2+) ratios, and electrical conductivity in soil depth. On the other hand, there was a decrease in exchangeable Mg2+ and potential acidity hydrogen and aluminum (H++Al3+), available silicon(Si), Mg2+saturation, and Ca2+/K+and Mg2+/K+ratio. These results demonstrate that the gypsum application in an Oxisol with 690 g kg?1 of clay improves the root system with a significant increase in the soil fertility i... Mostrar Tudo |
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Thesagro: |
Condutividade Eletrica; Fertilidade do Solo; Fertilizante. |
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Thesaurus Nal: |
gypsum. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02198naa a2200217 a 4500
001 2064623
005 2017-11-03
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2016.1141929$2DOI
100 1 $aMORAES, V. R.
245 $aChanges in chemical properties of an oxisol due to gypsum application.$h[electronic resource]
260 $c2016
520 $aThe increasing demand for fertilizers and the fact that the world reserves of phosphorus (P) and potassium (K) are depletable make appropriate soil management a critical factor in agriculture. Techniques for the fertilizer use and soil acidity corrective are becoming increasingly necessary to minimize the cost of yield and increase the nutrient efficiency. In view of the aforementioned, the present study aimed to assess the effects of gypsum application on the leach-ing of cations in the soil profile. A completely randomized design in a 5 × 4 factorial arrangement, with five replicates, was used. The treatments corresponded to five gypsum rates (0, 1, 2, 4, and 8 magnesium (Mg) ha?1) applied on broadcast of soil and at four depth sampled (0–5, 6–10, 11–15, and 16–20 cm). Gypsum application increased the fertility in depth, with the leaching of cations. There was an increasein soil pH, exchangeable K+ and calcium (Ca2+), sulfur (S–SO4 2-), P, boron (B), and manganese (Mn) concentration, cation exchange capacity (CEC), K+ and Ca2+ saturation, Ca2+/Mg 2+, Ca2+/K+, and K+/(Ca2++Mg2+) ratios, and electrical conductivity in soil depth. On the other hand, there was a decrease in exchangeable Mg2+ and potential acidity hydrogen and aluminum (H++Al3+), available silicon(Si), Mg2+saturation, and Ca2+/K+and Mg2+/K+ratio. These results demonstrate that the gypsum application in an Oxisol with 690 g kg?1 of clay improves the root system with a significant increase in the soil fertility in the profile.
650 $agypsum
650 $aCondutividade Eletrica
650 $aFertilidade do Solo
650 $aFertilizante
700 1 $aBRITO, O. R.
700 1 $aFIORETTO, R. A.
700 1 $aMOREIRA, A.
773 $tCommunications in Soil Science and Plant Analysis, [S. l.]$gv. 47, n. 5, p. 571-580, 2016.
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