1、Designation:F226911(Reapproved 2018)An American National StandardStandard Guide forMaintaining Warm Season Turfgrasses on Athletic Fields1This standard is issued under the fixed designation F2269;the number immediately following the designation indicates the year oforiginal adoption or,in the case o
2、f revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers the minimum requirements for main-taining warm-season turfgrasses used for natural
3、 surface ath-letic fields.Practices covered include mowing,fertilization,irrigation,corecultivation,winteroverseeding,pestmanagement,and requirements for management of dormantturf winter overseeded with cool-season turf(see also GuideF2060).1.2 The decisions involved in maintaining a quality natural
4、playing surface should consider soil types,local climate andother factors.Therefore,it is recommended that you contactyour local cooperative extension service for more specificinformation on soils,and grass species and cultivars adapted toyour area.1.3 The values stated in SI units are to be regarde
5、d as thestandard.The values in parentheses are for information only.1.4 This standard may involve hazardous materials,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if any,associated with itsuse.It is the responsibility of the user of this standard toest
6、ablish appropriate safety,health,and environmental prac-tices and determine the applicability of regulatory limitationsprior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles fo
7、r theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2F2060 Guide for Maintaining Cool Season Turfgrasses onAthletic FieldsF2651 Terminology Relating to Soil an
8、d Turfgrass Charac-teristics of Natural Playing Surfaces3.Terminology3.1 Definitions:3.1.1 Except as noted,soil-related and turfgrass-relateddefinitions are in accordance with Terminology F2651.4.Significance and Use4.1 A dense,uniform stand of turfgrass on a playing surfaceimproves the playing qual
9、ity and safety of the field byproviding firm footing for the athletes and by cushioning theirimpact from falls,tackles or slides.These standards are theminimum inputs required to provide such a surface.Variouspublished guides have been used in the development of thisstandard(1-8).34.2 Field conditio
10、ns may directly influence the frequencyand type of athletic injuries occurring as a result of using thefields.While these standards do not guarantee that such injurieswill be prevented,a well maintained turf on a natural playingsurface should minimize field-related injuries.5.Apparatus5.1 GeneralExp
11、erience and good judgment are importantto match the proper type of equipment to the nature of the taskto be performed.5.1.1 Mowing EquipmentMower types include reel,rotary,and flail;although the latter type is not recommendedfor fine playing surfaces.A reel mower should be used forplaying surfaces r
12、equiring mowing at less than 2.5 cm(1.0 in.).Mower blades should always be kept sharp and properlyadjusted in accordance to manufacturers recommendations.Mowing equipment should be operated in a speed range(ground and engine speed)consistent with the manufacturersrecommendation.5.1.2 SpreadersSpread
13、ers are necessary if dry fertilizer orpest control materials are to be applied.Spreader types mayinclude drop,rotary(centrifugal,spinner),or oscillating.Spreaders should be calibrated to deliver the desired,labeled,or recommended rate of fertilizer or pest control product beingapplied.1This guide is
14、 under the jurisdiction of ASTM Committee F08 on SportsEquipment,Playing Surfaces,and Facilities and is the direct responsibility ofSubcommittee F08.64 on Natural Playing Surfaces.Current edition approved Oct.1,2018.Published November 2018.Originallyapproved in 2003.Last previous edition approved in
15、 2011 as F2269 11.DOI:10.1520/F2269-11R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The boldface numbers in
16、 parentheses refer to the list of references at the end ofthis standard.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.1.