Premium
Effects of Chelated and Nonchelated Cobalt and Copper on Yields and Microelement Composition of Bush Beans Grown on Calcareous Soil in a Glasshouse
Author(s) -
Wallace A.,
Mueller R. T.
Publication year - 1973
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1973.03615995003700060032x
Subject(s) - calcareous , phaseolus , chelation , chemistry , loam , copper , metal , cobalt , sulfate , composition (language) , environmental chemistry , nuclear chemistry , horticulture , botany , inorganic chemistry , soil water , geology , biology , organic chemistry , linguistics , philosophy , soil science
Several levels of chelated [EDTA (ethylene diaminetetraacetate)] and nonchelated Co and Cu were applied to bush beans ( Phaseolus vulgaris L. var. ‘Improved Tendergreen’) grown in a glasshouse in calcareous Hacienda loam soil. Objectives of the study were to determine if chelated Co and Cu were more available in the calcareous soil than were inorganic sources, and if chelating agents contribute to toxicities at relatively high levels of Co and Cu. CoEDTA and CuEDTA applications caused higher levels of Co and Cu, respectively, in the plants than did inorganic sulfate sources. The applications of both metal chelates caused slight depressions in yields of dry matter at 50 ppm metal added and CoEDTA behaved similarly at 25 ppm Co. Each metal chelate was associated with a decreased Fe concentration in leaves at the highest application level. The Co in leaves was similar for applications of 50 ppm Co as CoSO 4 and 2.5 ppm Co as CoEDTA. The Cu concentration in leaves was greater for an application of 5 ppm Cu as CuEDTA than for 25 or 50 ppm Cu as CuSO 4 .