Data/hora: 07/06/2024 11:37:55

Biblioteca(s): | Embrapa Meio Norte / UEP-Parnaíba.
Data corrente: | 02/07/1996
Data da última atualização: | 10/07/1996
Autoria: | INOUE, K.; YOKOTA, H.; YAMADA, Y.
Afiliação: | Hiroshima Agricultural College.
Título: | Effect of Ca in the medium on root growth under low pH conditions.
Ano de publicação: | 1988
Fonte/Imprenta: | Soil Science and Plant Nutrition, v.34, n.3, p.359-374, 1988.
Idioma: | Inglês
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...
Palavras-Chave: | Acid soil; Growth; Root.
Thesagro: | Cálcio; Crescimento; Ph; Raiz; Sistema Radicular; Solo; Solo Ácido.
Thesaurus Nal: | calcium; root growth; soil.
Categoria do assunto: | --
Registro original: | Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP)

Exemplares:

CPAMN-UEPP - (6632-1) - ADP - SP - -- -  -  - 1991.03961 - DIS
CPAMN-UEPP - (6750-1) - ADP - SP - -- -  -  - 1991.03897 - DIS