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Effect of Nitrogen Fertilizers on Germination and Stand of Wild Oats

Published online by Cambridge University Press:  12 June 2017

J. J. Sexsmith  and
U. J. Pittman
J. J. Sexsmith
Affiliation:
Soils Section, Canada Agriculture Research Station, Lethbridge, Alberta
U. J. Pittman
Affiliation:
Soils Section, Canada Agriculture Research Station, Lethbridge, Alberta
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Abstract

Early-spring, broadcast, disked-in applications of nitrogen fertilizers caused an increased germination of wild oat (Avena fatua L.) seed present in the soil. With adequate moisture, there was increased wild oat infestation in the seeded crop from early-spring application, whereas with dry weather the effects did not carry over into the crop period. The apparent breaking of seed dormancy by nitrates from fertilizer applications may offer another method for combating wild oats other than by herbicides. Fertilizer treatment might be used to deplete seed reserves in the fallow years and to reduce the amount of seed returned to the soil in the crop years by combining a fertilizer treatment with delayed crop seeding.

Type
Research Article
Information
Weeds , Volume 11 , Issue 2 , April 1963 , pp. 99 - 101
Copyright
Copyright © 1963 Weed Science Society of America 

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References

Literature Cited

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