Effect of selenate VS. selenite forms of selenium in increasing the selenium concentration in forages and cereals

A greenhouse study was conducted on a fine sandy loam to determine the effect of adding different sources of Se on the Se concentration of forages and cereals. The three sources of Se were: NH 4 NO 3 prills containing (i) 1.20% Se as sodium selenate, (ii) 1.02% Se as sodium selenite and (iii) urea p...

Full description

Saved in:
Bibliographic Details
Published inCanadian journal of soil science Vol. 69; no. 4; pp. 885 - 888
Main Authors GUPTA, U. C, WINTER, K. A
Format Journal Article
LanguageEnglish
Published Ottawa, ON Agricultural Institute of Canada 01.11.1989
Subjects
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Micronutrients fertilization
Soil-plant relationships. Soil fertility. Fertilization. Amendments
Monocotyledones
Fertilization
Hordeum vulgare
Phleum pratense
Medicago sativa
Fodder
Cereal crop
Urea
Oligoelement
Leguminosae
Gramineae
Dicotyledones
Content
Angiospermae
Cereal
Spermatophyta
Application method
Fodder crop
Selenium
Greenhouse study
Sandy loam soil
Ammonium Nitrates
Online AccessGet full text

Cover

More Information
Summary:A greenhouse study was conducted on a fine sandy loam to determine the effect of adding different sources of Se on the Se concentration of forages and cereals. The three sources of Se were: NH 4 NO 3 prills containing (i) 1.20% Se as sodium selenate, (ii) 1.02% Se as sodium selenite and (iii) urea prills containing 1.00% Se as sodium selenite. Application of 20 g Se ha −1 as sodium selenate (source i) produced Se concentrations of 1.02 and 1.05 mg kg −1 in timothy and 1.04 and 0.55 mg kg −1 in alfalfa in the two cuts, respectively, and 0.78 mg kg −1 in barley grain. This application rate of Se in the form of selenite resulted in 0.07–0.09 mg Se kg −1 in the two forages and barley grain. At similar application rates of Se, the ammonium nitrate doped with sodium selenate produced about 5–18 times more Se in the forages and barley than when doped with sodium selenite. Overall no significant difference was found in the plant Se concentration between ammonium nitrate or urea prills as the carrier for selenite. Key words: Sodium selenate and selenite doped NH 4 NO 3 , greenhouse, Se in forages and cereals
ISSN:0008-4271
1918-1841
DOI:10.4141/cjss89-090