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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
17/05/1996 |
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Data da última atualização: |
17/05/1996 |
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Autoria: |
VERMA, K. S.; ABROL, I. P. |
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Título: |
Effects of gypsum and pyrites on soil properties in a highly sodic soil. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Indian Journal of Agricultural Sciences, v.50, n.11, p.844-852, Nov.1980. |
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Idioma: |
Inglês |
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Conteúdo: |
Ina field experiment conducted on a higly sodic soil, Aquic Natrustalf, gypsum @ 0, 7.1, 14.2, 21.3 and 28.4 tonnes/ha and pyrites @ 0, 3.6, 7.2, 10.8 and 14.4 tonnes/ha, cor- responding to 0, 25, 50, 75 and 100% of laboratory gypsum requirement of 0-15 cm, were surface-mixed. Rice (Oryza sativa Linn.) and wheat (Triticum astivum Linn. emend. Thell.) were grown in succession. The effect of treatments was studied on the changes in soil properties after growing rice and wheat crops. Improvement in the soil properties with the application of gypsum was always greater than with pyrites at all the levels. Application of gypsum not only directly supplied soluble calcium but also resulted in greater solubilization of soil calcium carbonate, as shown by greater build up of exchangeable calcium + mag- nesium. The pyrites containing 31.1% sulphur was only about one-fourth as effective as gypsum when compared on chemical equaivalent basis. The relative ineffectiveness of pyrites was owing to the neutrlization of acid by soluble carbonates and other soil consti- tuents and also to the lack of its further oxidation once incorporated in a sodic soil having high pH. A high degree of correlation between pH and exchangeable sodium percentage and between ESP and such soil physical properties as dispersion and infiltration indicated that pH could be used as a fair measure of soil sodicity. |
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Palavras-Chave: |
Pirita; Sodic soil. |
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Thesagro: |
Arroz; Gesso; Oryza Sativa; Solo; Trigo; Triticum Aestivum. |
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Thesaurus Nal: |
gypsum; pyrite; rice; wheat. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02079naa a2200277 a 4500
001 1788441
005 1996-05-17
008 1980 bl --- 0-- u #d
100 1 $aVERMA, K. S.
245 $aEffects of gypsum and pyrites on soil properties in a highly sodic soil.
260 $c1980
520 $aIna field experiment conducted on a higly sodic soil, Aquic Natrustalf, gypsum @ 0, 7.1, 14.2, 21.3 and 28.4 tonnes/ha and pyrites @ 0, 3.6, 7.2, 10.8 and 14.4 tonnes/ha, cor- responding to 0, 25, 50, 75 and 100% of laboratory gypsum requirement of 0-15 cm, were surface-mixed. Rice (Oryza sativa Linn.) and wheat (Triticum astivum Linn. emend. Thell.) were grown in succession. The effect of treatments was studied on the changes in soil properties after growing rice and wheat crops. Improvement in the soil properties with the application of gypsum was always greater than with pyrites at all the levels. Application of gypsum not only directly supplied soluble calcium but also resulted in greater solubilization of soil calcium carbonate, as shown by greater build up of exchangeable calcium + mag- nesium. The pyrites containing 31.1% sulphur was only about one-fourth as effective as gypsum when compared on chemical equaivalent basis. The relative ineffectiveness of pyrites was owing to the neutrlization of acid by soluble carbonates and other soil consti- tuents and also to the lack of its further oxidation once incorporated in a sodic soil having high pH. A high degree of correlation between pH and exchangeable sodium percentage and between ESP and such soil physical properties as dispersion and infiltration indicated that pH could be used as a fair measure of soil sodicity.
650 $agypsum
650 $apyrite
650 $arice
650 $awheat
650 $aArroz
650 $aGesso
650 $aOryza Sativa
650 $aSolo
650 $aTrigo
650 $aTriticum Aestivum
653 $aPirita
653 $aSodic soil
700 1 $aABROL, I. P.
773 $tIndian Journal of Agricultural Sciences$gv.50, n.11, p.844-852, Nov.1980.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| Registros recuperados : 1 | |
| 1. |  | LAHMAR, R.; ARRÚE, J. L.; DENARDIN, J. E.; GUPTA, R. K.; RIBEIRO, M. F. S.; TOURDONNET, S. de; ABROL, I. P.; BARZ, P.; BENITO, A. de; BIANCHINI, A.; BOLLIGER, A.; CANTERO-MARTÍNEZ, C.; CARDARELLI, A.; CHENU, C.; DÜRING, R. A.; FERNÁNDEZ, J. E.; FERREIRA, R.; FLORES, C. A.; FRIELINGHAUS, M.; TUAN, HA DINH; HUSSAIN, I.; KAVVADIAS, V.; KLIEMANN, H. J.; KOCHHANN, R. A.; KÖLLI, R.; KUBAT, J.; LAKTIONOVA, T.; LÓPES, M. V.; MAGID, J.; MEDVEDEV, V.; MENDES, I. C.; MICHELS, A.; MIRANDA, G. M.; MONTOYA, L.; MORENO, F.; MRABET, R.; MÜLLER, L.; MURILLO, J. M.; NAZARENO, N.; NETLAND, J.; NIELSEN, N. E.; NIEVES-MORTENSEN, C.; NOVAKOVA, J.; NOZIÈRES, A.; ONORATI, A.; PASCHALIDIS, C.; PAZ, C.; PEIRETTI, R.; PÉREZ DE CIRIZA, J. J.; PICARD, D.; PILLON, C. N.; POCHEPTSOVA, L.; QUILLET, J. C.; SANGAR, S.; SAULAS, P.; SCOPEL, E.; SKORA NETO, F.; SIMON, T.; SOMBRERO, A.; TENORIO, J. L.; TESSIER, D.; THINGGAARD, K.; TRIPATHI, S. C.; VANDEPUTTE, E.; WERRITY, J.; WILLMS, M.; ZAMBRANA, E.; ZERVAKIS, G. Knowledge assessment and sharing on sustainable agriculture. Synthesis report. In: LAHMAR, R.; ARRÚE, J. L.; DENARDIN, J. E.; GUPTA, R. K.; RIBEIRO, M. F. S.; TOURDONNET, S. de. (Ed.). KASSA - Knowledge Assessment and Sharing on Sustainable Agriculture. Montpellier: CIRAD, 2007. 132 p. 1 CD-ROM. Projeto DG-Research - Contract nº GOCE-CT-2004-505582.| Tipo: Capítulo em Livro Técnico-Científico |
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| Registros recuperados : 1 | |
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