Agronomy Journal Journal of Natural Resources and Life Sciences Education
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published online 1 January 1969
Published in Agron J 61:34-37 (1969)
© 1969 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Dotzenko, A. D.
Right arrow Articles by Storer, K. R.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Dotzenko, A. D.
Right arrow Articles by Storer, K. R.
Agricola
Right arrow Articles by Dotzenko, A. D.
Right arrow Articles by Storer, K. R.

Influence of Crop Sequence, Nitrogen Fertilizer and Herbicides on Weed Seed Populations in Sugar Beet Fields1

A. D. Dotzenko, M. Ozkan and K. R. Storer2

The crop sequence in which sugar beets followed beans had lower weed seed populations than did sugar beets following barley and corn. The rate and time of application of nitrogen fertilizer had a significant effect on weed seed numbers in sugar beet fields. Where high levels of N were applied, high densities of weed seed occurred. Chemical weed control treatments significantly reduced populations of all weeds studied when compared to mechanical cultivation treatments. Significant differences between interactions were found for N fertilizer and crop sequence, weed control and crop sequence and weed control and N fertilizer.

Key Words: crop sequence • nitrogen fertilizer • herbicides • sugar beets • weed seed

1 Published with the approval of the Director of the Colorado Agr. Exp. Sta. as Scientific Series Paper no. 1311. This research is part of a M. S. thesis submitted by M. Ozkan to the Graduate School, Colorado State University, Ft. Collins 80521, and, in part, was financed by the Great Western Sugar Company.

2 Professor of Agronomy and Graduate Research Assistants.

Received for publication May 17, 1968.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Crop Science Vadose Zone Journal
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1969 by the American Society of Agronomy.