scholarly journals Tall Fescue (Lolium arundinaceum (Schreb.) S.J. Darbyshire) Cultivar Performance in the Central California Coastal Region

2009 ◽  
Author(s):  
Seril Shimizu
Keyword(s):  
Tall Fescue ◽  
Coastal Region ◽  
Lolium Arundinaceum ◽  
Central California

Whole-crop triticale silage for dairy cows grazing perennial ryegrass (Lolium perenne) or tall fescue (Lolium arundinaceum) pastures in small-scale dairy systems during the dry season in the highlands of Mexico

2020 ◽  
Vol 52 (4) ◽  
pp. 1903-1910
Author(s):  
Felipe de Jesús González-Alcántara ◽  
Julieta Gertrudis Estrada-Flores ◽  
Ernesto Morales-Almaraz ◽  
Felipe López-González ◽  
Aida Gómez-Miranda ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Lolium Perenne ◽  
Perennial Ryegrass ◽  
Tall Fescue ◽  
Dry Season ◽  
Small Scale ◽  
Lolium Arundinaceum ◽  
Dairy Systems ◽  
Small Scale Dairy

Developing a high-resolution climatology for the Central California coastal region

2007 ◽  
Vol 27 (16) ◽  
pp. 2135-2161 ◽  
Author(s):  
Hyun-Sook Kim ◽  
Avijit Gangopadhyay ◽  
Leslie K. Rosenfeld ◽  
Frank L. Bub
Keyword(s):  
High Resolution ◽  
Coastal Region ◽  
Central California

Effect of Simulated Rainfall on Tall Fescue (Lolium Arundinaceum) Control with Glyphosate

2008 ◽  
Vol 22 (3) ◽  
pp. 553-557 ◽  
Author(s):  
Travis W. Gannon ◽  
Fred H. Yelverton
Keyword(s):  
Tall Fescue ◽  
Field Experiments ◽  
Rainfall Amount ◽  
Simulated Rainfall ◽  
Lolium Arundinaceum ◽  
Application Rates ◽  
Glyphosate Formulation ◽  
Glyphosate Formulations

Field experiments were conducted to determine the effect of simulated rainfall after glyphosate application on tall fescue control. Three glyphosate formulations, three simulated rainfall amounts, two application rates, and three rain-free periods were evaluated. Glyphosate formulations evaluated included Roundup Original®, Roundup Pro®, and Roundup ProDry®. Herbicide drying periods, or rain-free intervals, included 15, 30, or 60 min. Simulated rainfall amounts were 0, 0.25, or 0.64 cm. Application rates of glyphosate were 3.4 or 6.7 kg ae/ha. Averaged across glyphosate formulation and simulated rainfall amount, excellent (≥ 90%) tall fescue control was observed when no simulated rainfall occurred within 60 min after application, whereas good (≥ 80%) tall fescue control was observed when 30 rain-free min were provided. Although current glyphosate labels are vague about rainfastness, these data indicate that critical rain-free periods may be as short as 30 min when higher application rates are used.

scholarly journals Hybrid Bermudagrass and Tall Fescue Turfgrass Irrigation in Central California: I. Assessment of Visual Quality, Soil Moisture and Performance of an ET-Based Smart Controller

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1666
Author(s):  
Amir Haghverdi ◽  
Maggie Reiter ◽  
Anish Sapkota ◽  
Amninder Singh
Keyword(s):  
Tall Fescue ◽  
Water Conservation ◽  
Irrigation System ◽  
Irrigation Management ◽  
Precipitation Rate ◽  
Irrigation Frequency ◽  
Central California ◽  
Short Period ◽  
The Impact

Research-based information regarding the accuracy and reliability of smart irrigation controllers for autonomous landscape irrigation water conservation is limited in central California. A two-year irrigation research trial (2018–2019) was conducted in Parlier, California, to study the response of hybrid bermudagrass and tall fescue to varying irrigation scenarios (irrigation levels and irrigation frequency) autonomously applied using a Weathermatic ET-based smart controller. The response of turfgrass species to the irrigation treatments was visually assessed and rated. In addition, turfgrass water response functions (TWRFs) were developed to estimate the impact of irrigation scenarios on the turfgrass species based on long-term mean reference evapotranspiration (ETo) data. The Weathermatic controller overestimated ETo between 5and 7% in 2018 and between 5 and 8% in 2019 compared with California Irrigation Management Information System values. The controller closely followed programmed watering-days restrictions across treatments in 2018 and 2019 and adjusted the watering-days based on ETo demand when no restriction was applied. The low half distribution uniformity and precipitation rate of the irrigation system were 0.78 and 28 mm h−1, respectively. The catch-cans method substantially underestimated the precipitation rate of the irrigation system and caused over-irrigation by the smart controller. No water-saving and turfgrass quality improvement was observed owing to restricting irrigation frequency (watering days). For the hybrid bermudagrass, the visual rating (VR) for 101% ETo treatment stayed above the minimum acceptable value of six during the trial. For tall fescue, the 108% ETo level with 3 d wk−1 frequency kept the VR values in the acceptable range in 2018 except for a short period in mid-trial. The TWRF provided a good fit to experimental data with r values of 0.79 and 0.75 for tall fescue and hybrid bermudagrass, respectively. The estimated VR values by TWRF suggested 70–80% ETo as the minimum irrigation application to maintain the acceptable hybrid bermudagrass quality in central California during the high water demand months (i.e., May to August) based on long-term mean ETo data. The TWRF estimations suggest that 100% ETo would be sufficient to maintain the tall fescue quality for only 55 days. This might be an overestimation impacted by the relatively small tall fescue VR data in 2019 owing to minimal fertilizer applications and should be further investigated in the future.

Geology and Tectonics of the Central California Coastal Region, San Francisco to Monterey

1990 ◽  
Author(s):  
Robert E. Garrison ◽  
H. Gary Greene ◽  
Karen R. Hicks ◽  
Gerald E. Weber ◽  
Thomas L. Wright
Keyword(s):  
San Francisco ◽  
Coastal Region ◽  
Central California
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