Availability of boron and phosphorus as affected by liming an acid potato soil. [Zea mays L. ; Medicago sativa L]
An Entic Haplorthod, cropped for many years to potatoes, was used for plant pot and chemical studies involving the effects of pH increases by liming on the availability of B and P to Zea mays L. and Medicago sativa L. Increasing amounts of B added to the soil increased yields and B contents of alfalfa but caused increased toxicity symptoms in corn. Boron toxicity in corn was prevented by pH values above 6. When only the standard rate of P was applied, best growth of both crops was in soil at pH values from 5 to 5.7. When pH values were above 6, growth was retarded by deficiency of P. At pH values above 6, the addition of the high rate of P practically doubled dry-weight yields of corn and produced more than 20-fold increases in alfalfa yields. Deficiency of P induced by liming decreased with time. Parallel behavior of B and P in this study supports the hypothesis that both elements may be bound in podzolized soils by similar pH-dependent mechanisms, probably precipitation or adsorption by hydroxy Al. 14 references, 3 figures, 3 tables.
- Research Organization:
- Univ. of Vermont, Burlington
- OSTI ID:
- 6166840
- Journal Information:
- Soil Sci.; (United States), Vol. 116:2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of boron and lime on boron concentration and growth of forage legumes under greenhouse conditions
Use of clean coal technology by-products as agricultural liming techniques
Related Subjects
ALFALFA
PRODUCTIVITY
BORON
BIOLOGICAL AVAILABILITY
TOXICITY
MAIZE
PHOSPHORUS
ALUMINIUM
CALCIUM
EXPERIMENTAL DATA
IRON
LIMING
MAGNESIUM
MANGANESE
PH VALUE
SOIL CHEMISTRY
SOILS
ALKALINE EARTH METALS
BACTERIA
CEREALS
CHEMISTRY
DATA
ELEMENTS
GRASS
INFORMATION
LEGUMINOSAE
METALS
MICROORGANISMS
NONMETALS
NUMERICAL DATA
PLANTS
RHIZOBIUM
SEMIMETALS
TRANSITION ELEMENTS
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)