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Record nummer 104474
Titel De opname van fluoride door de wortel en de gevolgen daarvan voor diverse gewassen, in het bijzonder fresia
toon extra info.
[door] J.P.N.L. Roorda van Eysinga
Auteur(s) Roorda van Eysinga, J.P.N.L.
Uitgever [S.l. : s.n]
Jaar van uitgave 1974
Pagina's 83 p.
Annotatie(s) Proefschrift Wageningen
Ook verschenen als handelsuitgave
ISBN 9022005208
Tutor(s) Schuffelen, Prof. Dr. A.C.
Promotiedatum 1974-10-04
Proefschrift nr. 594
Samenvatting door auteur toon abstract

In a trial with pots, filled with peat, and the treatments 0N, 0P and 0K an unfavourable influence of triple superphosphate on freesias was observed. The crop showed scorching of the leaf margin, that turned out to be a symptom of fluorine excess. Especially monocotyle bulbous and cormous crops were susceptible to excess of fluoride from the substrate. In some trials a relation was found between the contents of fluorine in soil and in the crop, in others a relation between soil fluoride content and percentage of scorched leaf

Over hundred samples of soils were collected in the Netherlands and analysed for total fluorine, 'labile' fluoride and water soluble fluoride.

The pH of the soil was found to be an important factor regulating fluoride uptake and leaf scorch. Evaporation probably is the cause that other factors, such as electrolyte concentration of the soil, the season, the temperature of soil and air, the occurence of diseases, are of influence on leaf scorch while foliar fluorine is not clearly changed.

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Trefwoorden (cab) vloeistoffen (liquids) / absorptie / emissie / omloop / wortels / sierplanten / iridaceae / oogstschade / luchtverontreiniging / fluoride
Rubrieken Plantenfysiologie / Bodemchemie
Publicatie type Proefschrift
Taal Nederlands
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