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Sprigs of `Meyer' zoysiagrass (Zoysia japonica Steud.) were treated with urea nitrogen, a biostimulator, and one of three preemergence herbicides or one of two postemergence herbicides to hasten establishment in two field studies. Monthly application of N at 48 kg·ha–1 during the growing season had no influence on sprig establishment the first year, but slightly increased (+5%) zoysiagrass cover the second year. Presoaking sprigs in a solution containing (mg·L–1) 173 auxin and 81 cytokinin, and iron at 1.25 g·L–1 before broadcasting of sprigs, and biweekly sprays (g·ha–1) of 53 auxin and 24 cytokinin, and iron at 0.2 g·L–1 or (g·ha–1) 68 auxin and 36 cytokinin, and iron at 1.45 g·L–1 after broadcasting sprigs had no effect on zoysiagrass cover or rooting. Preemergence and postemergence herbicide use generally enhanced zoysiagrass cover by reducing smooth crabgrass competition [Digitaria ischaemum (Schreb. ex Schweig) Schreb. ex Muhl]. Oxadiazon enhanced zoysiagrass coverage more than dithiopyr, pendimethalin, quinclorac, or fenoxaprop. Oxadiazon and dithiopyr provided similar levels of crabgrass control, but dithiopyr reduced `Meyer' zoysiagrass midsummer root growth. Chemical names used: 3,5,-pyridinedicarbothioic acid, 2-[difluromethyl]-4-[2-methyl-propyl]-6-(trifluoromethyl)-S,S-dimethyl ester (dithiopyr); [±]-ethyl 2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxy] propanoate (fenoxaprop); 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2-(3H)-one (oxadiazon); N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine (pendimethalin); 3,7-dichloro-8-quin-olinecarboxylic acid (quinclorac).

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linear gradient irrigation HortScience 34 893 896 Qian, Y.L. Engelke, M.C. Foster, M.J.V. 2000 Salinity effects on zoysiagrass cultivars and experimental lines Crop Sci. 40 488 492 Richardson, M.D. Boyd, J.W. 2001 Establishing Zoysia japonica from

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are 11 identified Zoysia species, five of which are distributed in China ( Z. japonica , Z. matrella , Z. tenuifolia , Z. sinica , and Z. macrostachya ) ( Guo et al., 2014 ). In tropical southern China, soil acidification is an acute problem in

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; Engelke and Anderson, 2003 ). Most commonly used zoysiagrasses in these zones include three species of Zoysia matrella [(L.) Merr.], Zoysia japonica (Steud.), and Zoysia pacifica (Willd. ex Thiele) ( Engelke and Anderson, 2003 ). Zoysiagrass has a

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( Zoysia japonica Steud.). Furthermore, ‘Mirage’ bermudagrass [ Cynodon dactylon var. dactylon (L.) Pers.] reached 100% coverage 24 d earlier than ‘Zenith’ zoysiagrass ( Zoysia japonica Steud.) ( Patton et al., 2004 ). The slow establishment rate is

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this study. Although these species are widely distributed in Japan, the photosynthetic pathway of the two Sedum species is not well understood. Zoysia matrella , a warm-season turfgrass and C 4 plant, is one of the most common green roof plants in

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herbicides on bermudagrass ( Cynodon spp.) sprig establishment Weed Sci. 33 253 257 Boyd, J.W. Baird, J.H. 1997 Herbicide effects on sprig establishment of Zoysia japonica CV. El Toro and Cynodon dactylon × C. transvaalensis cv. Midlawn Intl. Turf. Soc

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.) Pers.; Wang et al., 2013 ], zoysiagrass ( Zoysia japonica Steud.; Li et al., 2009 ), and centipedegrass [ Eremochloa ophiuroides (Munro) Hack; Zheng et al., 2013 ]. However, there have been no similar publications on carpetgrass. This study is the

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artificial shade conditions. Materials and Methods Experiments were conducted in 2006 and 2007 at the Texas Tech University Horticulture Greenhouse in Lubbock, TX. Plugs measuring 2.5 cm 2 of six zoysiagrass genotypes [ Zoysia japonica Steud. genotype

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oxadiazon effectively controlled weeds and increased shoot dry weights and bulb yields in garlic ( Qasem, 1996 ) and shoot fresh and dry weight yields in marjoram ( Qasem and Foy, 2006 ). In zoysiagrass ( Zoysia japonica ), applications of oxadiazon enhanced

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