Availability of organic and inorganic forms of phosphorus to lupins (Lupinus spp.)

Inositol phosphate is at least equal to KH₂PO₄ as a source of P for the growth of lupins in sand but a much poorer source in soil. RNA and glycerophosphate were excellent sources of P for lupin growth in a P-fixing soil. Soil and root phosphatase activity were not altered by amendment of soils with...

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Bibliographic Details
Published in:Plant and soil 1992-09, Vol.145 (1), p.107-113
Main Authors: Adams, M.A. (University of Western Australia, Nedlands, W.A. (Australia). Dept. of Botany), Pate, J.S
Format: Article
Language:English
Subjects:
Acid soils
Agricultural soils
Agronomy. Soil science and plant productions
Biological and medical sciences
DISPONIBILIDAD DE NUTRIENTES
Economic plant physiology
ELEMENT NUTRITIF DISPONIBLE
Forest soils
FOSFORO
Fundamental and applied biological sciences. Psychology
Grassland soils
LUPINUS
Mineral nutrition
NUTRIENT AVAILABILITY
Nutrition. Photosynthesis. Respiration. Metabolism
Organic soils
Phosphatases
PHOSPHORE
PHOSPHORUS
Plant roots
Plants
Soil biochemistry
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Summary:Inositol phosphate is at least equal to KH₂PO₄ as a source of P for the growth of lupins in sand but a much poorer source in soil. RNA and glycerophosphate were excellent sources of P for lupin growth in a P-fixing soil. Soil and root phosphatase activity were not altered by amendment of soils with either inorganic-or organic-P. The difference in availability of differing P-sources is related to their solubility in soils rather than susceptibility to phosphatases.
ISSN:0032-079X
1573-5036
DOI:10.1007/bf00009546