Influence of ammonium on fine root development and rhizosphere pH of Douglas-fir seedlings in sand

Ammonium sulphate is a major component of the air pollutants deposited on forests in the Netherlands. Different amounts of $NH_4^ + $ were added to Douglas-fir seedlings grown in tall containers of sand, to study the influence of high concentrations of $NH_4^ + $ in the soil on the development of fi...

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Bibliographic Details
Published in:	Plant and soil Vol. 133; no. 1; pp. 75 - 81
Main Authors:	Olsthoorn, A.F.M. (Landbouwuniversiteit Wageningen (Netherlands). Vakgroep Bosbouw), Keltjens, W.G, Baren, B. van, Hopman, M.C.G
Format:	Journal Article
Language:	English
Published:	Dordrecht Kluwer Academic Publishers 1991 Springer
Subjects:	Acid soils Agricultural soils Agronomy. Soil science and plant productions AMMONIA AMMONIAC AMONIACO AZOTE Biological and medical sciences Bosbouw CONTAINER PLANTING ENRACINEMENT ENRAIZAMIENTO FITOTOXICIDAD Forest soils Forestry Fundamental and applied biological sciences. Psychology NITROGEN NITROGENO Non agrochemicals pollutants Phytopathology. Animal pests. Plant and forest protection PHYTOTOXICITE PHYTOTOXICITY Plant roots PLANTACION EN CONTENEDOR PLANTATION EN CONTAINER PLANTULAS PLANTULE Pollution effects and side effects of agrochemicals on crop plants and forest trees. Other anthropogenic factors Pollution effects. Side effects of agrochemicals PSEUDOTSUGA MENZIESII Quaternary ammonium compounds RACINE RAICES RHIZOSPHERE RIZOSFERA Root growth ROOTING ROOTS SANDY SOILS Sectie Bodemkwaliteit SEEDLINGS Soil chemistry SOL SABLEUX Sub-department of Soil Quality SUELO ARENOSO Root Forest soil Sandy soil Soil pollution Pseudotsuga menziesii Phytotoxicity Gymnospermae Softwood forest tree Air pollution Coniferales Spermatophyta Ammonium Sulfates Deposition
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