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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
02/07/1996 |
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Data da última atualização: |
10/07/1996 |
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Autoria: |
INOUE, K.; YOKOTA, H.; YAMADA, Y. |
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Afiliação: |
Hiroshima Agricultural College. |
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Título: |
Effect of Ca in the medium on root growth under low pH conditions. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Soil Science and Plant Nutrition, v.34, n.3, p.359-374, 1988. |
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Idioma: |
Inglês |
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Conteúdo: |
The effect of Ca in the medium on root growth was studied by using 15 cultivars under low pH conditions. The results are summarized as follows. (1) Soil culture - root growth was analyzed by introducing the roots of each cultivar into two soils differently treated (combination ofCaCO2-soil and -Ca-soil or CaSO4-soil and -Ca-soil). Roots generally grew well in the CaCO3-soil. Under similar soil pH conditions (4.3-4.6) and with a high content of exchangeable Al in the combination of CaSO4-soil and -Ca-soil, the root of many cultivars grew well in the CaSO4-soil. These results suggest that in acid soil the presence of Ca in the medium exerts a beneficial effect on root growth. However, peanut and soy bean grew better in the -Ca-soil. (2) Solution culture - In the medium at a low pH(3,5) and/or at a low Ca concentration, the plants in which root growth was adequate usuallycontained large amounts of K in their roots. The relative root growth of all the plants improved with the increase of the Ca concentration in the medium at a low pH... |
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Palavras-Chave: |
Acid soil; Growth; Root. |
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Thesagro: |
Cálcio; Crescimento; Ph; Raiz; Sistema Radicular; Solo; Solo Ácido. |
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Thesaurus Nal: |
calcium; root growth; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01771naa a2200301 a 4500
001 1077793
005 1996-07-10
008 1988 bl --- 0-- u #d
100 1 $aINOUE, K.
245 $aEffect of Ca in the medium on root growth under low pH conditions.
260 $c1988
520 $aThe effect of Ca in the medium on root growth was studied by using 15 cultivars under low pH conditions. The results are summarized as follows. (1) Soil culture - root growth was analyzed by introducing the roots of each cultivar into two soils differently treated (combination ofCaCO2-soil and -Ca-soil or CaSO4-soil and -Ca-soil). Roots generally grew well in the CaCO3-soil. Under similar soil pH conditions (4.3-4.6) and with a high content of exchangeable Al in the combination of CaSO4-soil and -Ca-soil, the root of many cultivars grew well in the CaSO4-soil. These results suggest that in acid soil the presence of Ca in the medium exerts a beneficial effect on root growth. However, peanut and soy bean grew better in the -Ca-soil. (2) Solution culture - In the medium at a low pH(3,5) and/or at a low Ca concentration, the plants in which root growth was adequate usuallycontained large amounts of K in their roots. The relative root growth of all the plants improved with the increase of the Ca concentration in the medium at a low pH...
650 $acalcium
650 $aroot growth
650 $asoil
650 $aCálcio
650 $aCrescimento
650 $aPh
650 $aRaiz
650 $aSistema Radicular
650 $aSolo
650 $aSolo Ácido
653 $aAcid soil
653 $aGrowth
653 $aRoot
700 1 $aYOKOTA, H.
700 1 $aYAMADA, Y.
773 $tSoil Science and Plant Nutrition$gv.34, n.3, p.359-374, 1988.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
