Phosphorus solubility in sludge-amended calcareous soils
Journal Article
·
· J. Environ. Qual.; (United States)
OSTI ID:6938164
Sludge additions to calcareous soils in New Mexico increased water soluble and NaHCO/sub 3/-extractable P as well as plant uptake of P, whereas inorganic fertilizer P has often been ineffectual. This paper describes attempts to explain sludge effects in terms of increased solubility of secondary Ca-P solid phases (e.g., tricalcium and octacalcium phosphate) in amended calcareous soils. Both greenhouse and field data, representing several croppings of amended soils were examined. Ancillary effects, primarily slight pH reductions, associated with sludge additions to the soils were apparently responsible for increased P solubility in amended soils.
- Research Organization:
- New Mexico State Univ., Las Cruces
- DOE Contract Number:
- AC04-83AL21776
- OSTI ID:
- 6938164
- Journal Information:
- J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 15:3; ISSN JEVQA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
510200* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH METAL COMPOUNDS
BUILDINGS
CALCIUM COMPOUNDS
CALCIUM PHOSPHATES
DATA
ELEMENTS
ENVIRONMENTAL EFFECTS
EXPERIMENTAL DATA
FEDERAL REGION VI
FERTILIZERS
FIELD TESTS
GREENHOUSES
INFORMATION
NEW MEXICO
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
PHOSPHATES
PHOSPHORUS
PHOSPHORUS COMPOUNDS
PLANTS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOILS
SOLUBILITY
TESTING
UPTAKE
USA
WASTES
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALKALINE EARTH METAL COMPOUNDS
BUILDINGS
CALCIUM COMPOUNDS
CALCIUM PHOSPHATES
DATA
ELEMENTS
ENVIRONMENTAL EFFECTS
EXPERIMENTAL DATA
FEDERAL REGION VI
FERTILIZERS
FIELD TESTS
GREENHOUSES
INFORMATION
NEW MEXICO
NONMETALS
NORTH AMERICA
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
PHOSPHATES
PHOSPHORUS
PHOSPHORUS COMPOUNDS
PLANTS
SEWAGE
SEWAGE SLUDGE
SLUDGES
SOILS
SOLUBILITY
TESTING
UPTAKE
USA
WASTES