HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Web of Science (8) Citing Articles via Google Scholar Google Scholar Articles by Riesterer, J. L. Articles by Combs, D. K. Search for Related Content PubMed Articles by Riesterer, J. L. Articles by Combs, D. K. Agricola Articles by Riesterer, J. L. Articles by Combs, D. K. Related Collections Forage Management Other Forage Crops

FORAGES

Seasonal Yield Distribution of Cool-Season Grasses following Winter Defoliation

Dep. of Agronomy, Univ. of Wisconsin, Madison, WI 53706-1597 USA

jlrieste{at}facstaff.wisc.edu

Graziers in southeastern USA often stockpile forage in late summer to extend the grazing season and reduce feeding costs. The effect of winter grazing on the following growing seasons production in the upper Midwest has not been reported. This study was conducted to determine the consequential forage yield and persistence of several cool-season grasses following various winter defoliation and N fertilization treatments in the upper Midwest. Grass cultivars included early and late-maturing orchardgrass (Dactylis glomerata L.), quackgrass [Elytrigia repens (L.) Nevski], reed canarygrass (Phalaris arundinacea L.), smooth bromegrass (Bromus inermis Leyss.), tall fescue (Festuca arundinacea Schreb.), and timothy (Phleum pratense L.). October, December, or March defoliation generally did not affect seasonal forage yield except when early spring growth preceded March defoliation, reducing first-cut forage yields. Without N, timothy, reed canarygrass, and orchardgrass had the highest seasonal forage yields. Both orchardgrass varieties, tall fescue, and reed canarygrass had the greatest response to N whereas timothy had the lowest response. While both spring-applied N treatments (single and split application of 101 kg ha^-1) had carryover effects into the midsummer cuttings, the single N application resulted in higher seasonal forage yield than the split-N application. Tall fescue had the greatest carryover response to N in both years. Orchardgrass and reed canarygrass provided the highest forage yields throughout the season. Tall fescue and both orchardgrass varieties were most persistent and timothy, smooth bromegrass, and quackgrass were least persistent.

This article has been cited by other articles:

				S. Niu, Z. Yuan, Y. Zhang, W. Liu, L. Zhang, J. Huang, and S. Wan Photosynthetic responses of C3 and C4 species to seasonal water variability and competition J. Exp. Bot., November 1, 2005; 56(421): 2867 - 2876. [Abstract] [Full Text] [PDF]

				R. L. Kallenbach, G. J. Bishop-Hurley, M. D. Massie, G. E. Rottinghaus, and C. P. West Herbage Mass, Nutritive Value, and Ergovaline Concentration of Stockpiled Tall Fescue Crop Sci., May 1, 2003; 43(3): 1001 - 1005. [Abstract] [Full Text] [PDF]

				R. Leep, P. Jeranyama, D.-H. Min, T. Dietz, S. Bughrara, and J. Isleib Grazing Effects on Herbage Mass and Composition in Grass-Birdsfoot Trefoil Mixtures Agron. J., November 1, 2002; 94(6): 1257 - 1262. [Abstract] [Full Text] [PDF]