Fluidized bed material as a lime substitute and calcium source for apple seedlings
Fluidized bed material (FBM), a dry, high-Ca, alkaline waste product from the combustion of coal and limestone, was used as a lime substitute/Ca source for York Imperial apple seedlings (Malus domestica) grown on three acidic soil materials in the greenhouse. Application rates were based on the lime requirement (LR) for each soil material determined by the BaCl/sub 2/, triethanolamine procedure. The LR values were 4.57, 12.54, and 11.65 mt CaCO/sub 3//ha for the Galestown Ap, Arendtsville Ap, and Tatum subsoil soil materials, respectively. Actual rates of FBM were one, two, four, and eight times the LR on a weight basis. A CaCO/sub 3/ treatment at the LR and a non-Ca amended fertilized control were used as comparisons. Fluidized bed material applied at the LR significantly increased leaf and stem dry weights and linear growth after 17 weeks, while the CaCO/sub 3/ treatment was not significantly different from the control. However, the highest FBM rate significantly reduced growth. The reason for this reduced growth was not evident from tissue elemental analyses or measurements of various soil properties. Applied FBM significantly increased leaf and stem Ca levels and decreased Zn nd Mn concentrations. Soils pH and electrical conductivities were elevated as were neutral 1N NH/sub 4/OAc extractable Ca levels with increasing FBM rates. Extractable soil Al, Zn, and Mn were reduced with increasing FBM. Approximately four times as much FBM was required to achieve final soil pH values equivalent to the CaCO/sub 3/ treatment applied at the LR.
- Research Organization:
- Beltsville Agriculture Research Center, MD
- OSTI ID:
- 5519358
- Journal Information:
- J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 9:1; ISSN JEVQA
- Country of Publication:
- United States
- Language:
- English
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60 APPLIED LIFE SCIENCES
ADDITIVES
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
ALKALINE EARTH METALS
ALUMINIUM
BUILDINGS
CALCIUM
CALCIUM CARBONATES
CALCIUM COMPOUNDS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CARBONATES
COAL
DATA
DATA FORMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FERTILIZERS
FLUIDIZED BED
FOSSIL FUELS
FRUIT TREES
FUELS
GREENHOUSES
GROWTH
INFORMATION
LIMESTONE
MANGANESE
METALS
NUMERICAL DATA
NUTRIENTS
OXYGEN COMPOUNDS
PH VALUE
PHYSICAL PROPERTIES
PLANT GROWTH
PLANT TISSUES
PLANTS
POTASSIUM
RESERVOIR ROCK
ROCKS
SEDIMENTARY ROCKS
SOILS
SOLID WASTES
TABLES
TRACE AMOUNTS
TRANSITION ELEMENTS
TREES
WASTE PRODUCT UTILIZATION
WASTES
WEIGHT
ZINC