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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
19/09/1995 |
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Data da última atualização: |
21/08/2013 |
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Autoria: |
JONES JUNIOR, J. B.; PERKINS, H. F. |
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Título: |
Agricultural lime: its solubility and composition. |
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Ano de publicação: |
1977 |
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Fonte/Imprenta: |
Georgia Agricultural Research, v.19, n.1, p.31-34, 1977. |
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Idioma: |
Inglês |
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Conteúdo: |
It would be difficult to pinpoint a single factor influencing the reactivity of the agricultural limestones. And, it should also be remembered that the materials used in this study were finely ground, possibly biasing the results. Hoperfully only the rate of reactivity was influenced rather than the character of reaction. Lime reactivity measured in terms of effect on soil pH cannot easily be predicted on the basis of its Ca content. However, there is some justification to suggest that for the limestones used in this study, soil reactivity is related more specially to Mg content. This suiggests that many of these limestones are not pure dolomites but either mixtures of dolomite and calcite, or calcitic limestone in which Mg has intruded into the calcit molecular structure. Apparently, sufficient quantities of Mg may be released from many of these limestones to supply Mg crop requirements even when the Mg content in the limes is at the minimum level defined in the Georgia Limestone Law to be called "Dolomitic Limestone." The results obtained in this study would suggest that up to 10% of the Mg applied as limestone could be released into the soil solution and therefore be available to plants to satisfy their Mg requirement. However, field studies are needed to further evaluate this aspect. |
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Palavras-Chave: |
Acid soil; Fertility. |
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Thesagro: |
Fertilidade; Solo Ácido. |
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Thesaurus Nal: |
Georgia; limestone. |
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Categoria do assunto: |
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Marc: |
LEADER 01833naa a2200205 a 4500
001 1786235
005 2013-08-21
008 1977 bl --- 0-- u #d
100 1 $aJONES JUNIOR, J. B.
245 $aAgricultural lime$bits solubility and composition.
260 $c1977
520 $aIt would be difficult to pinpoint a single factor influencing the reactivity of the agricultural limestones. And, it should also be remembered that the materials used in this study were finely ground, possibly biasing the results. Hoperfully only the rate of reactivity was influenced rather than the character of reaction. Lime reactivity measured in terms of effect on soil pH cannot easily be predicted on the basis of its Ca content. However, there is some justification to suggest that for the limestones used in this study, soil reactivity is related more specially to Mg content. This suiggests that many of these limestones are not pure dolomites but either mixtures of dolomite and calcite, or calcitic limestone in which Mg has intruded into the calcit molecular structure. Apparently, sufficient quantities of Mg may be released from many of these limestones to supply Mg crop requirements even when the Mg content in the limes is at the minimum level defined in the Georgia Limestone Law to be called "Dolomitic Limestone." The results obtained in this study would suggest that up to 10% of the Mg applied as limestone could be released into the soil solution and therefore be available to plants to satisfy their Mg requirement. However, field studies are needed to further evaluate this aspect.
650 $aGeorgia
650 $alimestone
650 $aFertilidade
650 $aSolo Ácido
653 $aAcid soil
653 $aFertility
700 1 $aPERKINS, H. F.
773 $tGeorgia Agricultural Research$gv.19, n.1, p.31-34, 1977.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| 1. |  | CIPRIANI, H. N.; SOUSA, H. de; MACHADO, E. L. M.; GONZAGA, A. P. D.; CARVALHO, L. C. da S.; OLVEIRA FILHO, A. T. de. Spatial and Height Distribution of Harvested Rupestrian Field Species in Preserved and Cultivated Communities. Floresta e Ambiente, v. 23, n. 1, p. 43-51, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Rondônia. |
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| Registros recuperados : 2 | |
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