Complementing Late‐Season Nitrogen Fertilization of Cool‐Season Turfgrass Putting Greens with Trinexapac‐ethyl

2013 ◽  
Vol 105 (6) ◽  
pp. 1507-1514 ◽  
Author(s):  
Chase M. Rogan ◽  
Maxim J. Schlossberg
Keyword(s):  
Nitrogen Fertilization ◽  
Cool Season ◽  
Putting Greens ◽  
Late Season

Late-season nitrogen fertilization on maize yield: A meta-analysis

2020 ◽  
Vol 247 ◽  
pp. 107586 ◽  
Author(s):  
Javier A. Fernandez ◽  
Jason DeBruin ◽  
Carlos D. Messina ◽  
Ignacio A. Ciampitti
Keyword(s):  
Nitrogen Fertilization ◽  
Meta Analysis ◽  
Maize Yield ◽  
Late Season

Long-Term Roughstalk Bluegrass Control in Creeping Bentgrass Fairways

2017 ◽  
Vol 31 (5) ◽  
pp. 714-723
Author(s):  
Sandeep S. Rana ◽  
Shawn D. Askew
Keyword(s):  
Creeping Bentgrass ◽  
Golf Course ◽  
Cool Season ◽  
Putting Greens ◽  
Annual Bluegrass ◽  
Turf Quality ◽  
Normalized Difference Vegetative Index

Methiozolin is an isoxazoline herbicide that selectively controls annual bluegrass in cool-season turf and may control roughstalk bluegrass, another weedyPoaspecies that is problematic in many turfgrass systems. However, the majority of research to date is limited to evaluating methiozolin efficacy for annual bluegrass control in creeping bentgrass putting greens. Research was conducted comparing various application regimes of methiozolin and other herbicides for long-term roughstalk bluegrass control in creeping bentgrass golf fairways. Methiozolin-only treatments did not injure creeping bentgrass or reduce normalized difference vegetative index (NDVI) at 2 golf course locations based on 20 evaluation dates over a 2.5-yr period. The 2.5-yr average turf quality generally declined as roughstalk bluegrass control increased due to transient turf cover loss. At 1 yr after last treatment, methiozolin at 1500 g ai ha-1applied four times in fall reduced roughstalk bluegrass cover 85%. This was equivalent to methiozolin at 1000 g ha-1applied four times in fall, but greater than low rates of methiozolin applied four times in spring or twice in fall and spring. Amicarbazone, primisulfuron, and bispyribac-sodium alone either did not effectively reduce roughstalk bluegrass cover, or did so at the expense of increased creeping bentgrass injury. Results of this study suggest that methiozolin alone or tank-mixed with amicarbazone or primisulfuron is an effective long-term approach for selectively controlling roughstalk bluegrass in creeping bentgrass.

scholarly journals Efficacy of Metamifop for the Control of Common Bermudagrass

2016 ◽  
Vol 26 (4) ◽  
pp. 394-398 ◽  
Author(s):  
Tyler Cooper ◽  
Leslie L. Beck ◽  
Chase M. Straw ◽  
Gerald M. Henry
Keyword(s):  
Cynodon Dactylon ◽  
Perennial Grass ◽  
Creeping Bentgrass ◽  
Cereal Crops ◽  
Cool Season ◽  
Putting Greens ◽  
Potting Media ◽  
Sequential Treatments ◽  
Texas Tech University ◽  
Common Bermudagrass

Metamifop is a postemergence aryloxyphenoxypropionic acid herbicide used for the control of annual and perennial grass weeds in cereal crops and rice (Oryza sativa L.). Previous research observed creeping bentgrass (Agrostis stolonifera L.) tolerance to applications of metamifop, suggesting utilization for the removal of encroaching bermudagrass (Cynodon Rich.) from creeping bentgrass putting greens with little to no phytotoxicity. Therefore, the objective of our research was to evaluate the efficacy of metamifop for common bermudagrass [Cynodon dactylon (L.) Pers.] control in a greenhouse environment. Experiments were conducted at the Plant and Soil Science greenhouse facility at Texas Tech University in Lubbock in 2011 and 2012. ‘Riviera’ and ‘Savannah’ common bermudagrass were seeded at 218 lb/acre into 4-inch square pots containing a soilless potting media on 26 Aug. 2011 and 14 Nov. 2011. Pots were allowed to mature in the greenhouse over a 3-month period where they were maintained at a height of 0.25 inches. Herbicide treatments were applied on 1 Dec. 2011 and 8 Feb. 2012 and consisted of metamifop at 0.18, 0.27, 0.36, or 0.45 lb/acre. A sequential application of each treatment was made on 22 Dec. 2011 and 29 Feb. 2012. A nontreated control was included for comparison. Clipping ceased after initial herbicide treatment and pots produced biomass for 3 weeks. Biomass above 0.25 inch was removed from each pot, dried, and weighed. This procedure was conducted again 3 weeks after sequential treatments. The rate of metamifop required to reduce bermudagrass growth 50% (GR50) was calculated 3 and 6 weeks after initial treatment (WAIT). Visual ratings of percent bermudagrass control were recorded weekly on a scale of 0% (no control) to 100% (completely dead bermudagrass). As metamifop rate increased, bermudagrass biomass decreased. The calculated GR50 at 3 WAIT for ‘Savannah’ and ‘Riviera’ was 0.19 and 0.14 lb/acre, respectively. Nontreated control pots exhibited 0% control and produced 0.59 to 0.83 g of biomass at 3 WAIT, regardless of cultivar. Metamifop at 0.27 to 0.45 lb/acre exhibited 96% to 100% bermudagrass control at 3 WAIT, regardless of cultivar. Bermudagrass subjected to those same treatments only produced 0.01 to 0.03 g of biomass at 3 WAIT, regardless of cultivar. The 0.18-lb/acre rate of metamifop exhibited only 9% control of ‘Savannah’ bermudagrass with 0.72 g of biomass collected, while ‘Riviera’ was controlled 41% with 0.38 g of biomass collected. The calculated GR50 at 6 WAIT for ‘Savannah’ and ‘Riviera’ was 0.13 and 0.14 lb/acre, respectively. Sequential applications of metamifop at 0.27 to 0.45 lb/acre completely controlled bermudagrass (100%) at 6 WAIT, while a sequential application at 0.18 lb/acre only controlled bermudagrass 8% to 19% at 6 WAIT, regardless of cultivar. Bermudagrass subjected to 0.18 lb/acre exhibited 0.48 to 0.56 g of biomass at 6 WAIT, regardless of cultivar. Metamifop shows potential as an alternative control option for common bermudagrass present within cool-season turfgrass species.

Nitrogen Fertilization Impacts on Stand and Forage Mass of Cool-Season Grass-Legume Pastures

2005 ◽  
Vol 3 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Gregory J. Cuomo ◽  
Margaretha V. Rudstrom ◽  
Dennis G. Johnson ◽  
Jon E. Anderson ◽  
Avinish Singh ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Cool Season ◽  
Cool Season Grass

Soil Microbial Communities on Roughs, Fairways, and Putting Greens of Cool‐Season Golf Courses

Crop Science ◽  
2019 ◽  
Vol 59 (4) ◽  
pp. 1753-1767 ◽  
Author(s):  
Elisha Allan‐Perkins ◽  
Daniel K. Manter ◽  
Geunhwa Jung
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Golf Courses ◽  
Cool Season ◽  
Putting Greens ◽  
Soil Microbial

Managing Late-Season Foliar Nitrogen Fertilization to Increase Grain Protein for Winter Wheat

2016 ◽  
Vol 108 (6) ◽  
pp. 2329-2338 ◽  
Author(s):  
Curtis D. Dick ◽  
Nathanael M. Thompson ◽  
Francis M. Epplin ◽  
Daryl B. Arnall
Keyword(s):  
Winter Wheat ◽  
Nitrogen Fertilization ◽  
Grain Protein ◽  
Foliar Nitrogen ◽  
Late Season

scholarly journals Investigation of cool‐season species, seeding rate, and nitrogen fertilization in sod production: II. management and shelf‐life

2021 ◽  
Author(s):  
Ross C. Braun ◽  
Eric Watkins ◽  
Andrew B. Hollman ◽  
Nicole T. Mihelich ◽  
Aaron J. Patton
Keyword(s):  
Shelf Life ◽  
Nitrogen Fertilization ◽  
Seeding Rate ◽  
Cool Season ◽  
Sod Production

scholarly journals Hydraulic Fluid Type and Remediation Practices on Hydraulic Leak Injury to Creeping Bentgrass Putting Greens

2019 ◽  
Vol 29 (6) ◽  
pp. 941-945
Author(s):  
John E. Kaminski ◽  
Tim T. Lulis ◽  
Travis R. Russell
Keyword(s):  
Warm Season ◽  
Creeping Bentgrass ◽  
Hydraulic Fluid ◽  
Cool Season ◽  
Putting Greens ◽  
Polyalkylene Glycol ◽  
Hydraulic Fluids ◽  
Putting Green ◽  
Fluid Leak ◽  
Water Rinse

Equipment with hydraulic implements are often used to maintain turfgrass surfaces. Hydraulic implements can malfunction and lead to leaks or spills of hydraulic fluid, which is phytotoxic to turfgrass. Previous research has documented extensively hydraulic fluid injury on warm-season turfgrasses, but these effects have not been evaluated on cool-season grasses and warrant further investigation. Therefore, the objectives of this study were to compare phytotoxicity of petroleum, vegetable, and synthetic hydraulic fluids on a creeping bentgrass (Agrostis stolonifera) putting green and to evaluate the influence of postapplication remediation practices on reducing turfgrass injury. Turfgrass injury was evaluated over a 4-week period in 2011 and 2012 after simulated hydraulic fluid leak and remediation practices were applied. Complete necrosis was observed after 28 days for all hydraulic fluid types. However, water rinse (RO) or detergent soap solution drench followed by brushing in/water rinse (SBR) remediation practices effectively eliminated turfgrass injury by the end of the 4-week period for synthetic polyalkylene glycol fluid treatments, but no other hydraulic fluid types. Turfgrass managers might consider the synthetic polyalkylene glycol hydraulic fluid tested in this study as a less phytotoxic alternative to petroleum hydraulic fluids if a remediation practice is implemented after a leak or spill.

Late season nitrogen fertilization of soybeans: effects on leaf senescence, yield and environment

2004 ◽  
Vol 68 (2) ◽  
pp. 109-115 ◽  
Author(s):  
Flavio H. Gutiérrez-Boem ◽  
Javier D. Scheiner ◽  
Helena Rimski-Korsakov ◽  
Raúl S. Lavado
Keyword(s):  
Leaf Senescence ◽  
Nitrogen Fertilization ◽  
Late Season

Nematode communities on putting greens, fairways, and roughs of organic and conventional cool-season golf courses

2017 ◽  
Vol 121 ◽  
pp. 161-171 ◽  
Author(s):  
Elisha Allan-Perkins ◽  
Daniel K. Manter ◽  
Robert Wick ◽  
Scott Ebdon ◽  
Geunhwa Jung
Keyword(s):  
Golf Courses ◽  
Cool Season ◽  
Putting Greens ◽  
Nematode Communities
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