Sôbre a determinação do nitrogênio, do fósforo e do potássio no mesmo extrato

The determination of total nitrogen, phosphorus, and potassium in plant material can be carried out in a common extract prepared with sulphuric acid and 30 per cent hydrogen peroxide. Nitrogen is estimated by direct nesslerization of a suitable aliquot (1-5 ml of the 50 ml extract made out of 250 mg...

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Bibliographic Details
Main Authors: Malavolta,E., Arzolla,J. P., Haag,H. P.
Format: Digital revista
Published: Universidade de São Paulo 1958
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761958000100002
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