scholarly journals Increasing Warm-Season Native Grass Biomass Using Fire, Herbicide, and Nitrogen Applications

2020 ◽  
Author(s):  
Sharon A. Clay ◽  
Alexander Smart ◽  
David E. Clay
Keyword(s):  
Warm Season ◽  
Native Grass ◽  
Grass Biomass

Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions

2013 ◽  
Vol 93 (3) ◽  
pp. 445-454 ◽  
Author(s):  
Jenalee M. Mischkolz ◽  
Michael P. Schellenberg ◽  
Eric G. Lamb
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Plant Density ◽  
Warm Season ◽  
Forage Yield ◽  
Schizachyrium Scoparium ◽  
Legume Species ◽  
Crude Protein Content ◽  
Native Grass ◽  
Western Wheatgrass

Mischkolz, J. M., Schellenberg, M. P. and Lamb, E. G. 2013. Early productivity and crude protein content of establishing forage swards composed of combinations of native grass and legume species in mixed-grassland ecoregions. Can. J. Plant Sci. 93: 445–454. We evaluated the early establishment productivity of forage swards of native, perennial, cool and warm season grasses, and legumes as they have the potential to provide non-invasive, productive, and drought resistant rangelands. Seven species with agronomic potential and a broad native geographic distribution were selected for testing including: nodding brome [Bromus anomalus (Coult.)], blue bunch wheatgrass [Pseudoregneria spicata (Pursh)], western wheatgrass [Pascopyrum smithii (Rydb.)], side oats grama [Bouteloua curtipendula (Michx.)], little blue stem [Schizachyrium scoparium (Michx.)], purple prairie clover [Dalea purpurea (Vent.)], and white prairie clover [Dalea candida (Willd.)]. Forage swards, including all seven monocultures, 21 two-species mixtures and a mixture with all species, were planted in two sites, Saskatoon and Swift Current, Saskatchewan. Western wheatgrass (WWG) had the highest overall plant density and the strongest effect on the forage yield of the forage swards; however, productivity and crude protein content were not reduced when other species were also included in the forage sward. Dalea spp. did not establish as well as the other species, but had the highest crude protein concentrations. This work provides insight into forage sward development at the establishment stage; additional work is required to determine long-term species impacts for well established forage swards.

Impact of land classification on potential warm season grass biomass production in Ontario, Canada

2013 ◽  
Vol 93 (2) ◽  
pp. 249-260 ◽  
Author(s):  
Hilla Kludze ◽  
Bill Deen ◽  
Alfons Weersink ◽  
Rene van Acker ◽  
Ken Janovicek ◽  
...  
Keyword(s):  
Biomass Production ◽  
Arable Land ◽  
Warm Season ◽  
Biomass Productivity ◽  
Biomass Energy ◽  
Environmental Benefit ◽  
Land Classification ◽  
Marginal Lands ◽  
Warm Season Grass ◽  
Grass Biomass

Kludze, H., Deen, B., Weersink, A., van Acker, R., Janovicek, K. and De Laporte, A. 2013. Impact of land classification on potential warm season grass biomass production in Ontario, Canada. Can. J. Plant Sci. 93: 249–260. This paper examines the land base of southern Ontario to determine the capability of land classes for growing two warm-season grasses, switchgrass (Panicum virgatum) and miscanthus (Miscanthus spp.), and discusses implications of a provincial biomass industry strictly based on biomass grown on marginal lands. The development of a biomass energy industry is a priority for many regional governments in Canada as a means to reduce fossil fuel use and improve environmental quality. Biomass productivity of the two crops was determined by assuming percentages of arable land area by quality that could be allocated to them: biomass productivity on “prime lands” was assumed to be higher than those of “marginal lands”. Our analysis indicates that Ontario has an adequate land base for producing miscanthus and/or switchgrass biomass to meet and surpass diverse competitive uses without significantly affecting food crop supply. Locations of marginal lands are scattered in the province and the feasibility of establishing a provincial biomass industry strictly based on biomass grown on these lands may not be economically sound or practical. A relatively small percentage of prime lands is required to achieve substantial biomass production with lower costs of production, and perhaps greater environmental benefit.

Reductions in native grass biomass associated with drought facilitates the invasion of an exotic grass into a model grassland system

Oecologia ◽  
2016 ◽  
Vol 181 (1) ◽  
pp. 175-183 ◽  
Author(s):  
Anthony Manea ◽  
Daniel R. Sloane ◽  
Michelle R. Leishman
Keyword(s):  
Native Grass ◽  
Grass Biomass ◽  
Exotic Grass

Native Grass Establishment following Application of Pyridine Herbicides

2017 ◽  
Vol 10 (01) ◽  
pp. 110-117 ◽  
Author(s):  
Rodney G. Lym ◽  
Roger L. Becker ◽  
Michael J. Moechnig ◽  
Mary B. Halstvedt ◽  
Vanelle F. Peterson
Keyword(s):  
Invasive Species ◽  
Tallgrass Prairie ◽  
Safety Margin ◽  
Warm Season ◽  
The United States ◽  
Grass Species ◽  
Slight Reduction ◽  
Native Grass ◽  
Intermediate Wheatgrass ◽  
Species Establishment

Invasive species management is often more successful if desirable species are seeded after the target weed is controlled. However, control of invasive plants must be maintained following reseeding or the seeded species may fail to establish. A regional study conducted in Minnesota, North Dakota, and South Dakota evaluated the effect of aminopyralid, clopyralid, or picloram applied in the fall prior to fall-dormant seeding or seeding the following spring on cool- and warm-season native grass species establishment. Herbicides were applied at standard rates used to control invasive broadleaf weeds in the upper midwestern tallgrass prairie region of the United States. Cool-season species included Canada wildrye, green needlegrass, and intermediate wheatgrass. Warm-season species included big bluestem, little bluestem, sideoats grama, switchgrass, and Indiangrass. Aminopyralid did not reduce seedling establishment in either fall or spring seeding. Grasses generally were not affected by a pretreatment of the pyridine standards clopyralid or picloram either, with the exception of a slight reduction in fall-seeded establishment of intermediate wheatgrass. Picloram also slightly reduced fall-seeded establishment of Canada wildrye. Application of aminopyralid can safely be used to control susceptible invasive species preceding grass species establishment, with a safety margin similar to or slightly better than that with the pyridine standards clopyralid or picloram.

Forage-Based Heifer Development Program for North Florida

EDIS ◽  
2018 ◽  
Vol 2018 (5) ◽  
Author(s):  
Jose C.B. Dubeux ◽  
Nicolas DiLorenzo ◽  
Kalyn Waters ◽  
Jane C. Griffin
Keyword(s):  
Development Program ◽  
Warm Season ◽  
Beef Cows ◽  
Good News ◽  
Cool Season ◽  
Beef Industry ◽  
Performance Targets ◽  
Grazing Systems ◽  
Heifer Development ◽  
Reducing Costs

Florida has 915,000 beef cows and 125,000 replacement heifers (USDA, 2016). Developing these heifers so that they can become productive females in the cow herd is a tremendous investment in a cow/calf operation, an investment that takes several years to make a return. The good news is that there are options to develop heifers on forage-based programs with the possibility of reducing costs while simultaneously meeting performance targets required by the beef industry. Mild winters in Florida allows utilization of cool-season forages that can significantly enhance the performance of grazing heifers. During the warm-season, integration of forage legumes into grazing systems will provide additional nutrients to meet the performance required to develop a replacement heifer to become pregnant and enter the mature cow herd. In this document, we will propose a model for replacement heifer development, based on forage research performed in trials at the NFREC Marianna.   

Translucent Glass Roofs For Large-Span Coverings

2019 ◽  
pp. 23-28
Keyword(s):  
Warm Season ◽  
Natural Light ◽  
Labor Costs ◽  
Main Bearing ◽  
Large Span ◽  
Glass Panels ◽  
Technical Properties ◽  
Internal Volume ◽  
Basic Approaches ◽  
Smoke Removal

The article deals with the issues of glass use in the enclosing structures of large-span coverings, which have such advantages as ensuring the penetration of natural light, tightness, minimum labor costs for repair and maintenance. Design shortcomings: the high cost, the need for protection of the internal volume against the penetrating sun rays in the warm season (hothouse effect); arrangement of devices for operation of a roof. The key technical properties and characteristics of glass panels and pane-glass sets, constructive decisions, including interface to the main bearing structures of a large-span covering are given. Peculiarities of their design with due regard for ventilation and smoke removal, a drainage of condensate, ways of fight against frosting and snow drifts on the roof are reflected. Features of the account of loadings, the basic approaches to their calculation are considered. Various design solutions for the spatial metal trussed systems with the original nodal connections are presented. Information on modern solutions of translucent roofs using glass for large-span coverings is given.

Ammoniation of Warm-Season Grass Hay for Gestating Beef Cows

1987 ◽  
Vol 65 (2) ◽  
pp. 359-365 ◽  
Author(s):  
M. G. Ward ◽  
J. K. Ward
Keyword(s):  
Warm Season ◽  
Beef Cows ◽  
Warm Season Grass ◽  
Grass Hay

Seed transfer zones for a native grass (Festuca roemeri): genecological evidence

2008 ◽  
Vol 9 (3) ◽  
pp. 287-302 ◽  
Author(s):  
Barbara L. Wilson ◽  
Dale C. Darris ◽  
Rob Fiegener ◽  
Randy Johnson ◽  
Matthew E. Horning ◽  
...  
Keyword(s):  
Native Grass ◽  
Seed Transfer ◽  
Transfer Zones
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