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Print version ISSN 0006-8705

Bragantia vol.7 no.4 Campinas  1947 

Água inativa de alguns tipos de solos do estado de São Paulo



Coaraci M. Franco; Heli Camargo Mendes




Using the method of Briggs and Shantz, several types of soils of the State of São Paulo were studied respecting their wilting points.
The results obtained are given in the Table I, and show us that we cannot use as wilting point twice the value of the hygroscopicity as given by Camargo and Vageler for the soils of the State of São Paulo.



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1.  Briggs, L. J. e H. L. Shantz. A wax seal method for determining the lower limit of available soil moisture. Botanical Gazette 51 : 210-219. 1910.         [ Links ]

2.  Briggs, L. J. e H. L. Shantz. The relative wilting coefficients for different plants. Botanical Gazette 53 : 229-235. 1912.         [ Links ]

3.  Camargo, T. e P. Vageler. Analyses de solos, I. Analyse Physica. Bol. Inst. Agr. Est. São Paulo (Campinas) 24 : 1-78. 1936.         [ Links ]

4.  Hendrickson, A. H. e F. J. Veihmeyer. Permanent wilting percentages of soil obtained from field and laboratory trials. Plant Phys. 20 : 517-539. 1945.         [ Links ]

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