Forage Production on Bermudagrass Sods Overseeded with Tall Fescue and Winter Annual Grasses 1

1973 ◽  
Vol 65 (2) ◽  
pp. 295-298 ◽  
Author(s):  
Henry A. Fribourg ◽  
Joseph R. Overton
Keyword(s):  
Tall Fescue ◽  
Forage Production ◽  
Annual Grasses ◽  
Winter Annual

scholarly journals Forage production dynamics of winter annual grasses sown on different dates

2011 ◽  
Vol 40 (3) ◽  
pp. 509-517 ◽  
Author(s):  
Edison Antonio Pin ◽  
André Brugnara Soares ◽  
Jean Carlo Possenti ◽  
Jussara Maria Ferrazza
Keyword(s):  
Lolium Multiflorum ◽  
Triticum Aestivum L ◽  
Total Production ◽  
Forage Production ◽  
Avena Strigosa ◽  
Sowing Dates ◽  
Annual Grasses ◽  
High Production ◽  
Winter Annual ◽  
Production Dynamics

This experiment was carried out from April to September 2008 with the objective of evaluating the forage production dynamics of winter annual grasses (Avena strigosa Schereb cv. IAPAR-61; Lolium multiflorum Lam cv. Comum; Avena strigosa cv. Comum; Avena sativa cv. IPR 126; and Triticum aestivum L cv. BRS Tarumã) on four sowing dates (April 4th, April 24th, May 14th and June 3rd). A completely randomized blocks with four replications was used. It was evaluated number of days and production at the first cutting, total production, number of cuts and density of plants and tillers. There is a strong interaction among cultivars and sowing dates for all analyzed variables and this indicates opportunities of choosing multiple combinations among cultivar and sowing dates to manipulate forage production aiming at easing forage gaps. The late season oats (IPR 126 and IAPAR 61) present high production and forage distribution capacities, especially if sown until mid-April.

scholarly journals 111 Metsulfuron and variable nitrogen application rates on infected tall fescue: effects on stocker performance, forage yield, nutritive value, ergovaline concentration and botanical composition

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 31-31
Author(s):  
Kevin R Meng ◽  
Eric Bailey ◽  
Josh Zeltwanger ◽  
Hannah Allen ◽  
Mikaela Adams ◽  
...  
Keyword(s):  
Species Composition ◽  
Tall Fescue ◽  
Nutritive Value ◽  
Ergot Alkaloids ◽  
Fertilization Rate ◽  
Forage Yield ◽  
Nitrogen Application ◽  
Forage Production ◽  
Seed Head ◽  
Application Rates

Abstract Chemical seed-head suppression of endophyte infected tall fescue (Lolium arundinaceum) improves stocker cattle performance but may decrease forage yield. Spring nitrogen application increases tall fescue growth with a concomitant increase in ergot alkaloids, produced by the symbiotic endophyte Epichloë coenophiala. We hypothesized that greater amounts of nitrogen applied to tall fescue would increase forage yield and offset losses in forage production from chemical suppression of seed-heads with metsulfuron without effect on alkaloid concentration. Ninety-six steers (270 ± 20 kg) were randomly assigned to one of sixteen paddocks (1.8 ha) on April 18 and continuously grazed for 57 d. Paddocks were blocked by previous use (n = 4) and randomly assigned to one of four treatments; no metsulfuron, no nitrogen (NEGCON), metsulfuron with 0 (MET0), 67 (MET67), or 134 (MET134) kg/ha of ammonium nitrate, applied March 11. Steers grazing MET0 paddocks were removed 17 d early due to insufficient forage availability. Steer weight, forage yield, forage nutritive value and ergot alkaloids in forage samples were measured monthly. Seed-head frequency and species composition were determined in June. Metsulfuron application reduced (P < 0.01) tall fescue seed-heads by 80%. Metsulfuron decreased (P = 0.03) ergovaline but ergovaline increased (P < 0.01) at each monthly sampling across treatments. Nitrogen had no impact on ergovaline concentration (P = 0.50). Forage yield tended to be least (P = 0.07) for MET0, intermediate for NEGCON and MET67, and tended to be greatest for MET134 (P = 0.08). Steer ADG was not affected by treatment (P < 0.80). Metsulfuron decreased NDF (P=0.02) regardless of fertilization rate. Forage CP increased with fertilization (P < 0.01) and no differences were detected between NEGCON and MET0 (P = 0.45). Species composition was not impacted (P >0.07) by treatment. Metsulfuron decreased seed-head growth and ergovaline concentration in tall fescue. Additional nitrogen fertilizer ameliorated forage yield lost to metsulfuron application but did not impact steer gain.

Palweed:Wheat: A Bioeconomic Decision Model for Postemergence Weed Management in Winter Wheat (Triticum aestivum)

Weed Science ◽  
1995 ◽  
Vol 43 (4) ◽  
pp. 595-603 ◽  
Author(s):  
Tae-Jin Kwon ◽  
Douglas L. Young ◽  
Frank L. Young ◽  
Chris M. Boerboom
Keyword(s):  
Winter Wheat ◽  
Weed Management ◽  
Decision Model ◽  
Damage Function ◽  
Yield Response ◽  
Density Functions ◽  
Yield Model ◽  
Weed Density ◽  
Annual Grasses ◽  
Winter Annual

Based on six years of data from a field experiment near Pullman, WA, a bioeconomic decision model was developed to annually estimate the optimal post-emergence herbicide types and rates to control multiple weed species in winter wheat under various tillage systems and crop rotations. The model name, PALWEED:WHEAT, signifies a Washington-Idaho Palouse region weed management model for winter wheat The model consists of linear preharvest weed density functions, a nonlinear yield response function, and a profit function. Preharvest weed density functions were estimated for four weed groups: summer annual grasses, winter annual grasses, summer annual broadleaves, and winter annual broadleaves. A single aggregated weed competition index was developed from the four density functions for use functions for use in the yield model. A yield model containing a logistic damage function performed better than a model containing a rectangular hyperbolic damage function. Herbicides were grouped into three categories: preplant nonselective, postemergence broadleaf, and postemergence grass. PALWEED:WHEAT was applied to average conditions of the 6-yr experiment to predict herbicide treatments that maximized profit. In comparison to average treatment rates in the 6-yr experiment, the bioeconomic decision model recommended less postemergence herbicide. The weed management recommendations of PALWEED:WHEAT behaved as expected by agronomic and economic theory in response to changes in assumed weed populations, herbicide costs, crop prices, and possible restrictions on herbicide application rates.

scholarly journals Green house studies on the biology of winter annual grasses and the use of cover crops and herbicides for their control

2013 ◽  
Vol 2 ◽  
pp. 139-148 ◽  
Author(s):  
JD Ranjit ◽  
R Bellinder ◽  
C Benidict ◽  
V Kumar
Keyword(s):  
Plant Growth ◽  
Cover Crops ◽  
Plant Biomass ◽  
Flag Leaf ◽  
Biological Study ◽  
Cornell University ◽  
Green House ◽  
Annual Grasses ◽  
Winter Annual ◽  
Preemergence Herbicides

Greenhouse studies were initiated in two small (Polypogon fugox) and large (Phalaris minor) seeded annual grasses in 2007 at Cornell University, Ithaca, NY USA. These two annual grasses were very common in wheat fields of midhills and terai regions of Nepal. P fugox was taken for biological study. Days to emergence took 8-11 days in green house. Early emerged panicles were longer than those emerged late. Panicle took 10-12 days to emerge completely from the flag leaf. Panicles per plant were 120. Seeds were very small having about 1091 seeds per panicle. So one fully matured plant could produce seeds about 130920. Study on eco-biology needs to continue in the future. P fugox and P minor responded differently to buckwheat residues. Among different treatments emergence and growth of both weeds were suppressed more by buckwheat residues when left on the surface than incorporated. P minor was less affected by buckwheat residues. It might be due to larger seed compared to P fugox. Post emergence herbicides clodinofop and pinoxaden were effective on both grasses. Isoproturon and tralkoxydim were effective on P fugox. Sulfosulfuron was good in reducing plant growth to some extent. Preemergence herbicides pendimethalin and s-metolochlor were effective in reducing emergence and growth of both weeds. Isoproturon and and sulfosulfuron suppressed plant growth reducing dry plant biomass. DOI: http://dx.doi.org/10.3126/ajn.v2i0.7529 Agronomy Journal of Nepal (Agron JN) Vol. 2: 2011 pp.139-148

scholarly journals Effects of the MaxP (TM) endophyte in tall fescue on pasture production and composition, and the sheep grazing preference in a dryland environment

2007 ◽  
Vol 13 ◽  
pp. 259-262
Author(s):  
K.N. Tozer ◽  
S. Ates ◽  
N.R. Mapp ◽  
M.C. Smith ◽  
R.J. Lucas ◽  
...  
Keyword(s):  
New Zealand ◽  
Tall Fescue ◽  
Dry Matter ◽  
Early Spring ◽  
Botanical Composition ◽  
Sheep Grazing ◽  
Pasture Production ◽  
Basal Diameter ◽  
Matter Production ◽  
Annual Grasses

Pasture growth, botanical composition and sheep grazing preference were measured over 20 months in tall fescue (cultivar Advance), without endophyte (Nil) or infected with AR542 (MaxPTM) endophyte, and clover pastures sown into a dryland soil, Canterbury, New Zealand. Pastures were rotationally grazed with sheep, with grazing preference for the two endophyte treatments measured in late autumn and early spring. Annual dry matter production from April 2004 to April 2005 was not significantly different between AR542 (6293 kg DM/ha) and Nil (5864 kg DM/ha) tall fescue. The number of tall fescue plants/m2 and their basal diameter was greater for AR542 (35 plants/m2, 7.5 cm diameter) than Nil endophyte tall fescue (28 plants/m2, 6.8 cm diameter). AR542 endophyte tall fescue pastures had fewer weeds, mainly annual grasses, than Nil endophyte pastures throughout the trial. Grazing preference, measured by the number of sheep grazing each plot, and decline in pasture height did not differ between Nil and AR542 tall fescue. Keywords: tall fescue, novel endophyte, AR542, botanical composition, weed, grazing preference

scholarly journals Lack of Host Specialization on Winter Annual Grasses in the Fungal Seed Bank Pathogen Pyrenophora semeniperda

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151058 ◽  
Author(s):  
Julie Beckstead ◽  
Susan E. Meyer ◽  
Toby S. Ishizuka ◽  
Kelsey M. McEvoy ◽  
Craig E. Coleman
Keyword(s):  
Seed Bank ◽  
Host Specialization ◽  
Annual Grasses ◽  
Winter Annual

Germination ecology of winter annual grasses in Mediterranean climates: Applications for soil cover in olive groves

2018 ◽  
Vol 262 ◽  
pp. 29-35 ◽  
Author(s):  
Borja Jiménez-Alfaro ◽  
Matías Hernández-González ◽  
Eduardo Fernández-Pascual ◽  
Peter Toorop ◽  
Stephanie Frischie ◽  
...  
Keyword(s):  
Soil Cover ◽  
Germination Ecology ◽  
Annual Grasses ◽  
Olive Groves ◽  
Winter Annual

Forage production for dairy farming in terms of the Research Station “Poyma”

2021 ◽  
pp. 8-16
Author(s):  
А.А. Анисимов ◽  
П.И. Комахин ◽  
В.Н. Золотарев
Keyword(s):  
Animal Husbandry ◽  
Perennial Grasses ◽  
Research Station ◽  
Forage Production ◽  
Forage Crops ◽  
Animal Product ◽  
Advanced Experience ◽  
Stable Production ◽  
Annual Grasses ◽  
Silage Production

Важнейшей проблемой продовольственной безопасности страны является уровень обеспеченности населения молочными продуктами. В связи с этим большое значение имеет опыт работы передовых хозяйств такого профиля в определённых почвенно-климатических и природно-экологических условиях. ФГБУ «Опытная станция «Пойма» является одним из наиболее эффективных хозяйств в Московской области по производству молока. Общая площадь сельскохозяйственных угодий составляет 6135 га, из них 2000 га пашни. В структуре посевных площадей 95% и более занимают кормовые культуры, в том числе 12–14% — однолетние травы, 68–70% — многолетние травы и природные кормовые угодья, 15–16% — кукуруза на силос. Основное производство кормов сосредоточено на высокоплодородных пойменных землях, на долю которых приходится 84% кормовых угодий. В статье изложены результаты системного применения достижений науки и передового опыта по стабильному производству высококачественных объёмистых кормов. Проведён анализ состояния кормопроизводства и животноводства хозяйства с 1982 по 2020 год, освещены научные подходы к увеличению производства кормов и животноводческой продукции. Системное освоение передовых научных разработок по созданию высокопродуктивных кормовых посевов и стабильному производству высококачественных объёмистых кормов, их рациональному хранению и использованию, техническая модернизация позволили увеличить среднегодовой надой на корову с 4079 до 9708 кг, или более чем в 2,3 раза, при одновременном снижении расхода кормов на 1 кг молока с 1,37 до 0,90 корм. ед. при повышении рентабельности с 16 до 28%. Food safety of the country is highly affected by the availability of milk products. Therefore, the experience of leading farms is of great importance under certain environmental conditions. The Research Station “Poyma” is one of the leading milk producers in the Moscow region. Its fields occupy around 6135 ha. The proportion of forage crops amounts to 95% including 12–14% of annual grasses, 68–70% of perennial grasses and natural forage lands as well as 15–16% of maize for silage production. 84% of the total cultivation area are high-fertile floodlands. This article focuses on the application of the latest scientific findings and advanced experience for stable production of high-quality bulk fodder. The efficiency of forage production and Animal Husbandry was analyzed in the period from 1982 to 2020. The methods and practices were reviewed to optimize forage and animal product resources. Average annual milk yield was improved from 4079 to 9708 kg per cow, or by more than 2.3 times due to the introduction of the latest findings into the production process including the cultivation of high-productive forage crops, stabilization of bulk fodder supplies, feed effective storage and use. Forage consumption dropped from 1.37 to 0.90 feed units for the production of 1 kg of milk, payback increased from 16 to 28%.

Cropping Systems to Control Winter Annual Grasses in Winter Wheat (Triticum aestivum)

1999 ◽  
Vol 13 (1) ◽  
pp. 120-126 ◽  
Author(s):  
Oleg Daugovish ◽  
Drew J. Lyon ◽  
David D. Baltensperger
Keyword(s):  
Winter Wheat ◽  
Cropping Systems ◽  
Field Studies ◽  
Downy Brome ◽  
Jointed Goatgrass ◽  
Long Term Effect ◽  
Annual Grasses ◽  
Winter Annual ◽  
Feral Rye

Field studies were conducted from 1990 through 1997 to evaluate the long-term effect of 2- and 3-yr rotations on the control of downy brome, jointed goatgrass, and feral rye in winter wheat. At the completion of the study, jointed goatgrass and feral rye densities averaged 8 plants/m2and < 0.1 plant/m2for the 2- and 3-yr rotations, respectively. Downy brome densities averaged < 0.5 plant/m2for both the 2- and 3-yr rotations, with no treatment differences observed. Winter annual grasses were not eradicated after two cycles of the 3-yr rotations, but weed densities were reduced 10-fold compared to densities after one cycle and more than 100-fold compared with the 2-yr rotations. Wheat grain contamination with dockage and foreign material followed a similar trend. The 3-yr rotations were economically competitive with 2-yr rotations and provided superior control of the winter annual grass weeds.

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