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Sharpley, A.N.

Modeling soil and plant phosphorus dynamics in calcareous and highly weathered soils - 1989 - Printed

Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0361-5995

Labile and organic phosphorus (P) and sorbed P are required as the minimum data set to run a soil-plant P cycling model recently developed for continental U.S. soils. Labile and organic P and P sorption index were related to physical and chemical properties of 23 calcareous (greater than 50 g kg-1 CaCO3 content) and 32 highly weathered soils (greater than 30% Al saturation), to allow estimation of these P forms from readily available soil data. The P sorption or fertilizer AV index was estimated as the fraction of fertilizer P remaining as labile (resin extractable) P following incubation of soil and fertilizer. Labile P was linearly related (R2


English

ISSN: 0361-5995

Subjects--Topical Terms:
America
Chemical soil types
Climatic soil types
Ecology
Ecosystems
Elements
Environment
Fertilizers
Fertilizing
Inorganic compounds
Lithological soil types
Mathematics
Methods
Nonmetals
North America
Organic compounds
Phosphates
Salts
Site factors
Soil types
Soils
Soil fertility
Soil fertility

Dewey Class. No.: 89-146835