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Jones, J.B.

Changing nitrogen source on the yield and nitrogen content of soybeans - 1982 - Printed

18 ref.; Summary (En) Peer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-079X

Soybean plants were grown in nutrient culture solutions containing 150 ppm of N either as an equal concentration of NH(, 4)('+) or NO(,3)('-), or all NO(,3)('-). At the R2 stage of growth for some plants, the N form was changed to either all NO(,3)('-) or all NH(,4)('+), but at the same total N concentration as before. Highest seed yield was obtained with all NO(,3)('-) over the entire growth period, the poorest when the N form was switched from an equal ratio of NH(,4)('+) and NO(,3)('-) to all NH(,4)('+) at the R2 stage. Kjeldahl N concentrations in the plant leaves and seed were highest when NH(,4)('+) was part or all of the N source in the


English

ISSN: 1573-5036 (Revista en electrónico)

Subjects--Topical Terms:
Plant production
Soybean glycine max

Dewey Class. No.: 83-889623