Requirements and tolerance to elements by alfalfa

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Agron. J.; (United States)

OSTI ID:7132602

Brown, J C; Graham, J H

Alfalfa (Medicago sativa l., ''Dupuits'', f.c. 40247) is a cultivar of the flemish type selected on a clay-loam soil in northern France. It matures early and grows rapidly after each cutting, but little is known about its nutrient requirements. The objective of this study was to determine the nutrient requirements or tolerance of dupuits alfalfa for specific elements. It was subjected to Fe, Zn, and Cu stresses, and to Mn and Al toxicities by growing it on seven soils known to produce these deficiency or toxicity symptoms in other crops. Dupuits alfalfa developed severe Zn deficiency symptoms on most alkaline soils, Al toxicity symptoms on acid richland soil. When lime was added to the two acid soils, the plants developed Cu deficiency symptoms on bladen (pH 5.3) and B deficiency symptoms on richland (pH 7.0). The deficiency symptoms were corrected by adding Cu and B to these soils, respectively. Dupuits alfalfa absorbed and transported Fe from the alkaline soils and it never developed Fe deficiency symptoms.

• OSTI ID: 7132602
• Journal Information: Agron. J.; (United States), Journal Name: Agron. J.; (United States) Vol. 70:3; ISSN AGJOA
• Country of Publication: United States
• Language: English

Related Subjects

510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACIDIFICATION
ALFALFA
ALUMINIUM
BORON
COPPER
ELEMENTS
EUROPE
FRANCE
GROWTH
IRON
LEGUMINOSAE
MANGANESE
METALS
NUTRIENTS
PH VALUE
PLANT GROWTH
PLANTS
SEMIMETALS
SOILS
TOLERANCE
TOXICITY
TRANSITION ELEMENTS
WESTERN EUROPE
ZINC