Influence of post-treatment irrigation timings and herbicide placement on bermudagrass and goosegrass (Eleusine indica) response to low-dose topramezone and metribuzin programs

Immediate, post-treatment irrigation has been proposed as a method to reduce hybrid bermudagrass [Cynodon dactylon (L.) Pers. x Cynodon transvaalensis Burtt Davy] phytotoxicity from topramezone. Immediate irrigation is impractical since it would take a turfgrass sprayer 10 to 15 minutes to cover an average golf course fairway or athletic field. There is also insufficient evidence regarding how post-treatment irrigation, immediate or otherwise, influences mature goosegrass [Eleusine indica (L.) Gaertn.] control from topramezone or low-dose topramezone plus metribuzin programs. We sought to investigate bermudagrass and E. indica response to immediate, 15-minute, and 30-minute post-treatment irrigation compared to no irrigation following topramezone at 12.3 g ae ha−1, the lowest labeled rate, or topramezone at 6.1 g ha−1 plus metribuzin at 210 g ai ha−1. We also evaluated placement of each herbicide and their combination on soil, foliage, and soil plus foliage to help elucidate the mechanisms involved in differential responses between species and herbicide mixtures. Responses were largely dependent on trial due to bermudagrass injury from high-dose topramezone being nearly eliminated by immediate irrigation in one trial and only slightly affected in another. When post-treatment irrigation was postponed for 15 or 30 minutes, topramezone alone injured bermudagrass unacceptably in both trials. Bermudagrass was injured less by low-dose topramezone plus metribuzin than by high-dose topramezone. All post-treatment irrigation timings reduced E. indica control compared to no post-treatment irrigation. The herbicide placement study suggested that topramezone control of E. indica is highly dependent on foliar uptake and phytotoxicity of both bermudagrass and E. indica is greater from topramezone than metribuzin. Thus, post-treatment irrigation likely reduces topramezone rate load with a concomitant effect on plant phytotoxicity of both species. Metribuzin reduced 21-d cumulative clipping wt and tiller production of plants, and this may be a mechanism by which it reduces foliar white discoloration from topramezone.

A Golf Course Quality Scale (GCQS): Validity and Reliability Testing on Spanish Golf Courses

The objective of this study was to evaluate the psychometric properties, in terms of validity and reproducibility, of the Golf Course Quality Scale (GCQS) in the Spanish golf course context. The GCQS is a scale that measures the quality of a golf course perceived by its users. It is comprised of 22 five-point Likert scale items, ranging from 1 (disagree) to 5 (totally agree). The items were grouped into five dimensions: services, etiquette, facilities, golf courses, and staff. A translated and adapted version of the Australian CQS questionnaire was administered to a total of 401 federated golf players in the Region of Murcia (RM). The margin of error was 4.9% with a confidence level of 95%. Of the total sample, 88.5% were men and 11.5% were women. The participants were between the ages of 18 and 80 (M = 54.1, SD = 14.3). Following an exploratory factor analysis (EFA) to determine the suitability of the proposed items and the factorial structure of the scale, a confirmatory factor analysis (CFA) was performed using structural equations under the maximum likelihood extraction method. This assessed the fit of the model and its internal consistency, with values above 0.79. In conclusion, the validity and reliability of this psychometric scale for the purposes of evaluating the quality of golf courses perceived by their users have been verified. The results confirm that the scale is a useful tool for golf course research and management.

Popularity of Screen Golf in Korea and Its Sociocultural Meaning

The purpose of this study was to examine the popularity of screen golf, golf played using an indoor golf simulator, in Korea and to further explore its sociocultural significance. This study conducted a case study in which purposeful sampling was employed to recruit 15 participants. The results revealed that screen golf was popular in Korea because its facilities were easier to access; screen golf centers were found at convenient locations, and screen golf was more affordable than playing golf at the golf course. The combination of screen golf and the bang culture that is particular to Koreans has led them to accept the former as a familiar space for leisure activities. The results further revealed that screen sport has sociocultural significance in that its considerable popularity has led to the integration of virtual reality (VR) sports into daily life, thus making the division between sports and games less evident. Golf, a sport once considered as being an exclusive hobby for rich elites, has become popular among the general public, destroying the hierarchal notion that some sports harbor. This is meaningful as screen golf has played the role of an agent for sport socialization, encouraging people to participate in golf even on a course, unlike any other VR sport. Furthermore, this pastime has secured its position as a subculture in and of itself, becoming popular throughout the world.

The Combined Use of Remote Sensing and Wireless Sensor Network to Estimate Soil Moisture in Golf Course

In gardening, particularly in golf courses, soil moisture management is critical for maximizing water efficiency. Remote sensing has been used to estimate soil moisture in recent years with relatively low accuracies. In this paper, we aim to use remote sensing and wireless sensor networks to generate soil moisture indexes for a golf course. In the golf course, we identified three types of soil, and data was gathered for three months. Mathematical models were obtained using data from Sentinel-2, bands with a resolution of 10 and 20 m, and sensed soil moisture. Models with acceptable accuracy were obtained only for one out of three soil types, the natural soil in which natural vegetation is grown. Two multiple regression models are presented with an R2 of 0.46 for bands at 10 m and 0.70 for bands at 20 m. Their mean absolute error was lower than 3% in both cases. For the modified soils, the greens, and the golf course fairway, it was not feasible to obtain regression models due to the temporal uniformity of the grass and the range of variation of soil moisture. The developed moisture indexes were compared with existing options. The attained accuracies improve the current models. The verification indicates that the model generated with band 4 and band 12 is the one with better accuracy.

Field Quantification of Ammonia Emission following Fertilization of Golf Course Turfgrass in Sub/Urban Areas

Low cost and favorable handling characteristics make urea (46-0-0) a leading nitrogen source for frequent, foliar N fertilization of golf course putting greens in season. Yet few field investigations of resulting NH3 volatilization from putting greens have been directed. Meanwhile, NH3 emissions degrade air and surface water quality. Our objective was to quantify NH3 volatilization following practical, low-N rate, and foliar application of commercial urea-N fertilizers. Over the 2019 and 2020 growing seasons in University Park, PA, USA, an industrial vacuum pump, H3BO3 scrubbing flasks, and sixteen dynamic flux chambers were employed in four unique experiments to measure NH3 volatilization from creeping bentgrass putting greens (Agrostis stolonifera L. ‘Penn G2’) in the 24 h period ensuing foliar application of urea based-N at a 7.32 or 9.76 kg/ha rate. Simultaneous and replicated flux chamber trapping efficiency trials showing 35% mean NH3 recovery were used to adjust NH3 volatilization rates from treated plots. Under the duration and conditions described, 3.1 to 8.0% of conventional urea N volatilized from the putting greens as NH3. Conversely, 0.7 to 1.1% of methylol urea liquid fertilizer (60% short-chain methylene urea) or 0.7 to 2.2% of urea complimented with dicyandiamide (DCD) and N-(n-butyl) thiophosphoric triamide (NBPT) volatilized as NH3.

A Slice of Tourism: The Nature, Dimensions and Geographies of International Golf Tourism in New Zealand

<p>Tourism is one of the largest and fastest growing industries in the world and for New Zealand it is the most important industry along with dairy. Of the 2.5 million tourists who visit New Zealand each year, it is estimated that around 65,000 (3%) of visitors will play at least one game of golf while in the country. New Zealand’s profile as a golfing destination has increased in recent years and now boasts a number of the worlds top ranked courses. This, along with the low cost of playing golf in New Zealand has made it an attractive golfing destination. This thesis aims to gain a greater insight into the nature and dimensions of the golf tourism industry in New Zealand and of those who visit. This research was conducted through a range of interviews with 19 stakeholders in the golf tourism industry, as well as a golfer’s questionnaire to which 44 international visitors responded. This research has found that international golf tourism plays an important role for many golf courses throughout New Zealand and the number of visitors is on the rise. These visitors tend to be wealthier and spend more money than the average tourist during their stay and so the benefits of increasing this market go beyond what is spent on the golf course alone. However, New Zealand must first overcome a number of barriers if international golf tourism is to reach its full potential. The key barriers to growth are New Zealand’s geographic isolation, the large distances between New Zealand’s top courses, competition from other golfing destinations and a lack of marketing to increase the awareness of New Zealand as a golfing destination.</p>

A Slice of Tourism: The Nature, Dimensions and Geographies of International Golf Tourism in New Zealand

<p>Tourism is one of the largest and fastest growing industries in the world and for New Zealand it is the most important industry along with dairy. Of the 2.5 million tourists who visit New Zealand each year, it is estimated that around 65,000 (3%) of visitors will play at least one game of golf while in the country. New Zealand’s profile as a golfing destination has increased in recent years and now boasts a number of the worlds top ranked courses. This, along with the low cost of playing golf in New Zealand has made it an attractive golfing destination. This thesis aims to gain a greater insight into the nature and dimensions of the golf tourism industry in New Zealand and of those who visit. This research was conducted through a range of interviews with 19 stakeholders in the golf tourism industry, as well as a golfer’s questionnaire to which 44 international visitors responded. This research has found that international golf tourism plays an important role for many golf courses throughout New Zealand and the number of visitors is on the rise. These visitors tend to be wealthier and spend more money than the average tourist during their stay and so the benefits of increasing this market go beyond what is spent on the golf course alone. However, New Zealand must first overcome a number of barriers if international golf tourism is to reach its full potential. The key barriers to growth are New Zealand’s geographic isolation, the large distances between New Zealand’s top courses, competition from other golfing destinations and a lack of marketing to increase the awareness of New Zealand as a golfing destination.</p>