J. Anim Sci.
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

J. Anim Sci. 1967. 26:394-399.
© 1967 American Society of Animal Science
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 Johnson, R. R.
Right arrow Articles by Johnson, L. J.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Johnson, R. R.
Right arrow Articles by Johnson, L. J.

Corn Plant Maturity. III. Distribution of Nitrogen in Corn Silage Treated with Limestone, Urea and Diammonium Phosphate1, 2,

Ronald R. Johnson, K. E. McClure, E. W. Klosterman and L. J. Johnson3, 4,

Ohio Agricultural Research and Development Center, Wooster

Abstract

Corn plant material was ensiled with and without urea and limestone additions (0.5% each) on seven stages of maturity from blister to postfrost stage (20 to 55% D.M.). Material harvested at the glaze stage was ensiled with various combinations of urea, limestone and diamonium phosphate (DAP). Lactic and acetic acid production was highest at the early stages of maturity and decreased with maturity. Their production was increased appreciably by limestone-urea treatments but only slightly by DAP treatments. Ensiling corn plant material decreased tungstic-acid-precipitable nitrogen and increased tungstic-acid-soluble nitrogen, part of which appeared as ammonia nitrogen. Increasing the fermentation at early stages of maturity (20% D.M.) with limestone-urea treatment further increased ammonia formation and decreased true protein. At later stages, most of the added urea could be recovered as ammonia plus urea. DAP added at ensiling time was 80 to 99% recovered as ammonia-urea nitrogen.

Footnotes

1 Approved for publication as Journal Article No. 8-66 by the Associate Director of the Ohio Agricultural Research and Development Center, Wooster, Ohio.

2 Portions of the research were supported by a gift from International Minerals Corporation, Skokie, Illinois.

3 Department of Animal Science.

4 The authors acknowledge the technical assistance of Miss Gisela Rother and Kenneth Zehnder.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1967 by the American Society of Animal Science.