Crop, Forage and Turfgrass Management最新文献_第6页

Weed control and water-seeded rice response to pyraclonil applied at different timings and in herbicide combinations 不同时间和除草剂组合使用吡唑醚菌酯的除草效果和水稻对其的反应

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-31 DOI: 10.1002/cft2.20284

Aaron Becerra-Alvarez, Sarah L. Marsh, Alex R. Ceseski, Kassim Al-Khatib

{"title":"Weed control and water-seeded rice response to pyraclonil applied at different timings and in herbicide combinations","authors":"Aaron Becerra-Alvarez, Sarah L. Marsh, Alex R. Ceseski, Kassim Al-Khatib","doi":"10.1002/cft2.20284","DOIUrl":"https://doi.org/10.1002/cft2.20284","url":null,"abstract":"Pyraclonil is a new herbicide to control weeds in California water-seeded rice (Oryza sativa L.). The objectives of this research were to evaluate weed control and rice response from pyraclonil applied alone at different timings and when applied in combinations with other herbicides. In one field study, pyaclonil was applied at 0.3 lbs a.i. ac−1 on pre-seed bare ground, 1-inch flood, 4-inch flood and 3 days after flooding in water-seeded rice. In another study, pyraclonil was applied at 0.3 lbs a.i. ac−1 at day of rice seeding and followed by various registered herbicides. Pyraclonil applications resulted in similar weed control across timings. Pyraclonil provided greater than 92% control of smallflower umbrella sedge (Cyperus difformis L.) and broadleaf weeds but less than 60% control of ricefield bulrush [Schoenoplectus mucronatus (L.) Palla] at 42 days after treatment. Watergrass (Echinochloa spp.) control was achieved with pyraclonil if applied before emergence. Early-season rice injury from pyraclonil was observed; however, rice appeared uninjured later in the season. The addition of other herbicides after a pyraclonil application increased weed control levels across weed species and resulted in grain yields from 6,925 to 8,623 and 9,182 to 10,865 lbs ac−1 in 2019 and 2021, respectively. Pyraclonil provides early-season weed control and, when incorporated with other herbicides, will be a useful herbicide in water-seeded rice.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20284","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141182175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Safety of carfentrazone-ethyl following application of bensulide to creeping bentgrass putting greens 在匍匐翦股颖果岭上施用苄嘧磺隆之后施用乙基甲拌磷的安全性

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-29 DOI: 10.1002/cft2.20285

Zane Raudenbush, Matt Sousek, Cole S. Thompson, Roch Gaussoin

{"title":"Safety of carfentrazone-ethyl following application of bensulide to creeping bentgrass putting greens","authors":"Zane Raudenbush, Matt Sousek, Cole S. Thompson, Roch Gaussoin","doi":"10.1002/cft2.20285","DOIUrl":"https://doi.org/10.1002/cft2.20285","url":null,"abstract":"Golf course superintendents may use bensulide to control annual grassy weeds and carfentrazone-ethyl (CE) to control silvery-thread moss (Bryum argenteum Hedw.) in creeping bentgrass putting greens. Creeping bentgrass injury has been reported if CE is applied soon after treatment with bensulide and the safe application interval varies as much as 68 days. Our goal was to improve the precision of recommendations for safe application of CE following bensulide, considering both CE rate and timing. We used a factorial treatment structure that included (1) bensulide or no bensulide, (2) three rates of CE, and (3) nine CE application timings in 2018 and 2019 at locations in Nebraska and Ohio. Because of limited effects in 2018, different CE rates and application timings were used in 2019. Significant creeping bentgrass injury was only observed at 6.7 or 13.4 fl oz acre−1 rates of CE that were applied within 3 days of applying bensulide. Even the 13.4 fl oz acre−1 rate (a 2× rate) of CE did not injure creeping bentgrass when applied at least 7 days after applying bensulide. The 2.0 fl oz acre−1 rate of CE never injured creeping bentgrass, even when applied the same day as bensulide. Cultivar, management, and environmental differences may influence whether subsequent application of bensulide and CE injures creeping bentgrass. Based on the environmental/cultural conditions and cultivars used in this research, golf course superintendents should expect little to no injury when CE is applied at least 1 week after applying bensulide.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141182275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recipients of 2023 Editor's Citation for Excellence 2023 年卓越编辑奖获得者

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-25 DOI: 10.1002/cft2.20292

引用次数: 0

Influence of storage length on the nutritive value of baleage 贮藏时间对包谷营养价值的影响

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-25 DOI: 10.1002/cft2.20280

Justin C. Burt, Lisa L. Baxter, Sydney L. Payne, Taylor J. Hendricks, R. Lawton Stewart Jr., Jennifer J. Tucker

{"title":"Influence of storage length on the nutritive value of baleage","authors":"Justin C. Burt, Lisa L. Baxter, Sydney L. Payne, Taylor J. Hendricks, R. Lawton Stewart Jr., Jennifer J. Tucker","doi":"10.1002/cft2.20280","DOIUrl":"https://doi.org/10.1002/cft2.20280","url":null,"abstract":"High-quality forages can benefit from being harvested as baleage when the environmental conditions are not favorable for dry hay production. Currently, it is recommended that baleage should be fed within 9-months post-harvest; however, mild winters can reduce the demand for these stored forages. Data are limited on the changes in nutritive value of baleage stored beyond the recommended timepoint. Therefore, the objective was to determine the effect of storage length on nutritive value of forage harvested and stored as baleage. This study evaluated baleage harvested from 2016 to 2018 in Tifton, GA, consisting of either bermudagrass (Cynodon dactylon L. Pers.), or a mixture of bermudagrass and alfalfa (Medicago sativa L.). Baleage was sampled for nutritive value analysis at 6-weeks and 9- and 12-months post-harvest, with a subset of bales sampled at 24 months. Regardless of forage, crude protein, total digestible nutrients, and in-vitro dry matter digestibility at 48 h were not impacted in bales sampled up to 12-months post-harvest (p > 0.07). However, acid detergent fiber increased when baleage was stored beyond 6 weeks but did not change from 9 to 12 months (p < 0.01). In the subset of bales stored up to 24-months post-harvest, all nutritive value parameters evaluated were negatively impacted (p < 0.01). The prolonged storage period may negatively affect the baleage plastic integrity, resulting in a decline in nutritive value if anaerobic conditions are not maintained. Future research is warranted to evaluate the changes in the fermentation profile of baleage under extended storage conditions.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20280","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141097912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Can cotton seed size mitigate preemergence herbicides injury? 棉花种子大小能否减轻芽前除草剂的伤害？

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-25 DOI: 10.1002/cft2.20286

Sarah K. Holladay, Michael W. Marshall, Michael T. Plumblee, Michael A. Jones, Sruthi Narayanan, Matthew D. Inman

{"title":"Can cotton seed size mitigate preemergence herbicides injury?","authors":"Sarah K. Holladay, Michael W. Marshall, Michael T. Plumblee, Michael A. Jones, Sruthi Narayanan, Matthew D. Inman","doi":"10.1002/cft2.20286","DOIUrl":"https://doi.org/10.1002/cft2.20286","url":null,"abstract":"Preemergence herbicides (PRE) have become integral for weed control in cotton (Gossypium hirsutum L.), especially with the prevalence of glyphosate-resistant Palmer amaranth (Amaranthus palmeri S. Wats.). However, PRE herbicides have the potential to injure cotton seedlings. Previous research has shown that a larger seed size can compensate for early season stresses which could mitigate potential PRE herbicide injury. In this study, we evaluated growth and yield of two cotton varieties with different seed sizes (large and small) in response to three PRE herbicides alone and in combination. Percent visual injury, biomass, plant heights, stand counts, lint yield, and fiber quality were obtained to make comparisons between seed sizes and PRE treatments. In both years, the large-seeded variety had a higher biomass at 3-leaf stage. However, both varieties had “grown out” of the herbicide injury at 42 days after planting and the early season vigor of the larger seed did not result in higher lint yield. The small-seeded variety had greater yield in both years of the study. This may be due to the genetics or yield potential of the small-seeded variety, or bolls containing smaller seeds typically have a greater number of seeds with more opportunity for lint production. Cotton treated with diuron had the most visual injury and decreased biomass. The results from this study will allow growers to make more informed decisions with regards to seed size, vigor, and PRE herbicide choices. If crop injury is likely, a larger seeded cotton variety may mitigate potential early season injury; however, seed size did not have an impact on final lint yield.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20286","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141097941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Budget and breakeven prices of winter canola and pennycress production in Tennessee 田纳西州冬季油菜籽和菥蓂生产的预算和盈亏平衡价格

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-15 DOI: 10.1002/cft2.20283

S. B. Keadle, V. R. Sykes, C. E. Sams, X. Yin, J. A. Larson, J. F. Grant

{"title":"Budget and breakeven prices of winter canola and pennycress production in Tennessee","authors":"S. B. Keadle, V. R. Sykes, C. E. Sams, X. Yin, J. A. Larson, J. F. Grant","doi":"10.1002/cft2.20283","DOIUrl":"https://doi.org/10.1002/cft2.20283","url":null,"abstract":"Canola (Brassica napus) and pennycress (Thlaspi arvense L.) are winter oilseed crops that can be used to create sustainable aviation fuel. They have been grown successfully in the Upper Midwest and Great Plains and are garnering interest in the Mid-South. A field study was conducted in Tennessee to determine management practices and average yields expected for the region. From this study, a budget and breakeven analysis was conducted. Budgets were created for tilled and no-till canola and pennycress systems. Based on average yields obtained and projected oilseeds prices, canola systems are potentially profitable, while pennycress systems are not. However, breakeven prices were highly variable between years, locations, oilseed species, and tillage type. Canola has been relatively established in the region and can be promoted to growers as a profitable crop. Presently, the adoption of pennycress in the Mid-South is not recommended without further research on best management practices, breeding efforts for higher yielding varieties, and the creation of a viable market for sale.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20283","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140949195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Agronomic and economic productivity of summer annual forage systems under different poultry litter application methods 不同家禽粪便施用方法下夏季一年生牧草系统的农艺和经济生产力

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-15 DOI: 10.1002/cft2.20281

IvaNelle Meyer, Michael P. Popp, Christin C. Nieman, Amanda J. Ashworth, Phillip R. Owens

{"title":"Agronomic and economic productivity of summer annual forage systems under different poultry litter application methods","authors":"IvaNelle Meyer, Michael P. Popp, Christin C. Nieman, Amanda J. Ashworth, Phillip R. Owens","doi":"10.1002/cft2.20281","DOIUrl":"https://doi.org/10.1002/cft2.20281","url":null,"abstract":"Poultry litter (litter) is a nutrient dense fertilizer that increases nutritive value and yield in pastures in the mid-southern US. Nutrient losses due to runoff and nitrogen volatilization are common when broadcasting litter. As such, incorporating litter below the soil surface (subsurface) was evaluated in comparison to broadcasting in 2021 and 2022 by quantifying yield and nutritive value of annual forages. The study was a randomized complete block design with three forage treatments—sorghum-sudangrass only (Sorghum bicolor L.), cowpea only (Vigna unguiculata L.), and their mixture, and three litter application methods (broadcast, subsurface, and a no litter control). Litter was applied in 2021 only as biennial application is common to save on application cost. Nutritive analyses included neutral detergent fiber and crude protein (CP). Partial budgeting led to relative profitability estimates by accounting for yield and cost differences across treatments. In comparison to the second-highest yielding forage mixture, sorghum-sudangrass yielded 4.5%–18.4% more regardless of litter application method. The forage mixture did not improve forage nutritive value, as cowpea were vastly outcompeted and did not average more than 5% of the total forage harvested in mixtures. Cowpea yields did not benefit from litter application. Subsurface application resulted in 8%–10% greater CP content compared to no litter and broadcast litter, respectively, across all forage species. Sorghum-sudangrass with subsurface applied litter earned nearly $70/acre more than sorghum-sudangrass with broadcast litter, the next highest treatment combination, and, with lesser nutrient loss.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140924813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A survey of ethofumesate resistant annual bluegrass (Poa annua) on US golf courses 美国高尔夫球场抗乙草胺年度蓝草（Poa annua）调查

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-05-15 DOI: 10.1002/cft2.20282

Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, J. Scott McElroy, Aaron J. Patton

{"title":"A survey of ethofumesate resistant annual bluegrass (Poa annua) on US golf courses","authors":"Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, J. Scott McElroy, Aaron J. Patton","doi":"10.1002/cft2.20282","DOIUrl":"https://doi.org/10.1002/cft2.20282","url":null,"abstract":"Annual bluegrass (Poa annua L.) is the most troublesome weed on golf courses in the US. Many agronomic practices intended to promote high-quality playing surfaces favor the growth and development of annual bluegrass, resulting in high weed pressure. One commonly used herbicide for annual bluegrass control on golf courses is ethofumesate, which is a very long chain fatty acid inhibitor. Annual bluegrass resistance to this herbicide is documented and confirmed in grass seed production systems, but potential resistance on golf courses was previously unknown. The objective of this study was to determine the frequency and magnitude of potential ethofumesate resistance from a sample of US golf courses. A dose-response experiment was initiated at Purdue University using 30 annual bluegrass populations collected from Alabama, California, Indiana, and Oregon golf courses. Ten ethofumesate doses included 0, 0.5, 1.0, 2.5, 5.0, 7.5, 10.0, 15.0, 20.0, and 40.0 lb a.i. acre−1, with 1.0 to 2.0 a.i. acre−1 as the standard label application rate for perennial ryegrass turf. A low level of resistance (R/S < 3) was found in several populations collected in each state. The mean effective dose necessary to kill 50% of the populations (ED50) was 5.1, 9.2, 3.5, and 3.4 lb a.i. acre−1 for populations from Alabama, California, Indiana, and Oregon, respectively. The most resistant population originated from California, with an ED50 of 13.2 lb a.i. acre−1. To reduce selection pressure from ethofumesate populations, golf course superintendents are encouraged to develop site-specific weed control programs that rotate herbicide sites of action, as well as utilize diverse control tactics.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20282","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140924816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How do roll timing and seeding rate affect lentil yields? 滚动时间和播种率如何影响扁豆产量？

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-04-04 DOI: 10.1002/cft2.20278

Maryse Bourgault, Perry R. Miller, Simon Fordyce, Peggy F. Lamb, Jeff Holmes, Samuel T. Koeshall, Patrick M. Carr

{"title":"How do roll timing and seeding rate affect lentil yields?","authors":"Maryse Bourgault, Perry R. Miller, Simon Fordyce, Peggy F. Lamb, Jeff Holmes, Samuel T. Koeshall, Patrick M. Carr","doi":"10.1002/cft2.20278","DOIUrl":"https://doi.org/10.1002/cft2.20278","url":null,"abstract":"Lentil (Lens culinaris Medik.) production has increased exponentially in Montana in the last two decades. However, there are important gaps in knowledge on best management practices for lentil. Agronomic recommendations are based on performance of old cultivars outside of the area for seeding rate, and on anecdotal evidence for proper roll timing, particularly since the widespread adoption of no-till farming. Replicated field experiments were conducted at three sites during the 2019, 2020, and 2021 growing seasons in Montana to determine the impacts of roll timing and seeding rate on lentil yield and identify best practices. Overall, rolling at emergence and at the 10-leaf stage decreased yields by 5% and 8%, respectively, but rolling just after planting or at the early vegetative stage (two- to four-leaf stage) did not decrease yields. Higher yields were achieved at higher seeding rates, with yields increasing between 6 and 52 lb ac−1 for each additional plant established per square foot, but emergence rates were variable and relatively low, so a higher seeding rate may be necessary to achieve plant densities above 12 plants ft−2 in this region. In five out of nine site years, the largest partial economic returns were achieved with 22.5 or 30 live seeds ft−2 seeding rate, corresponding to achieved plant densities of 12 to 16 plants ft−2. It was generally economical to increase seeding rate from 15 to 22.5 live seeds ft−2, thus increasing average achieved plant density from 8 to 13 plants ft−2, except when seed costs were high (>$0.45 lb−1) combined with low market prices (< $0.20 lb−1).","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cft2.20278","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140345569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vegetation and animal production in pastures sprayed for western ragweed control 喷洒西部豚草控制剂的牧场中的植被和动物产量

IF 0.6

Crop, Forage and Turfgrass Management Pub Date : 2024-04-03 DOI: 10.1002/cft2.20279

Keith Harmoney, John Jaeger, Jacob Hadle

{"title":"Vegetation and animal production in pastures sprayed for western ragweed control","authors":"Keith Harmoney, John Jaeger, Jacob Hadle","doi":"10.1002/cft2.20279","DOIUrl":"https://doi.org/10.1002/cft2.20279","url":null,"abstract":"Western ragweed (Ambrosia psilostachya DC) is one of the most common perennial, native forbs of western US rangelands. Cattle consume small quantities of western ragweed in their diets when present in the forage sward, and forage nutritive value tends to be greater than the associated grass component in those swards. Yet, many producers view western ragweed as an undesirable forb in rangelands. We conducted a study over two years to compare vegetative and stocker animal productivity in pastures that were either sprayed with dicamba at 6 oz/acre (0.19 lb a.i./acre) for western ragweed control or were left unsprayed. Pastures started the study with high western ragweed densities (>9 western ragweed plants/ft2) before pasture treatment, and spraying with dicamba significantly reduced western ragweed density and yield compared to unsprayed pastures (0.2 vs. 3.5 ragweed plants/ft2, and 0 vs. 206 lb/acre, respectively). Grass production and total vegetation production were similar between treatments. Crude protein and total digestible nutrients of western ragweed was greater than grass at all mid-season and end of season sampling dates both years. Stocker animal gain was not different between pastures sprayed for ragweed control and pastures left unsprayed in either year, nor when averaged over the two years (189 vs. 188 lb/head, sprayed vs. unsprayed, respectively). Beef production per acre was also similar. The spray treatment was an added expense that did not result in greater total forage, grass, or animal production. With natural fluctuations in western ragweed population densities due to weather patterns, producers will likely experience little benefit from spraying for western ragweed alone in pasture.","PeriodicalId":10931,"journal":{"name":"Crop, Forage and Turfgrass Management","volume":"10 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140343087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0