Full TGIF Record # 124591
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DOI:10.1071/EAO42246
Web URL(s):http://www.publish.csiro.au/?act=view_file&file_id=EA04246.pdf
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http://www.publish.csiro.au/view/journals/dsp_journal_fulltext.cfm?nid=72&f=EA04246
    Last checked: 05/24/2007
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Publication Type:
i
Report
Author(s):Menzel, C. M.; Broomhall, P.
Author Affiliation:Menzel: Department of Primary Industries and Fisheries, Nambour, Queensland, Australia; Broomhall: Hortech Services Proprietary Limited, Amiens, Queensland, Australia
Title:Nutrient uptake in tropical turfgrasses growing in winter in southern Queensland
Source:Australian Journal of Experimental Agriculture. Vol. 46, No. 9, August 2006, p. 1217-1224.
# of Pages:8
Publishing Information:East Melbourne: Commonwealth Scientific and Industrial Research Organization (Australia)
Keywords:TIC Keywords: Warm season turfgrasses; Nutrient uptake; Fertilization; Axonopus compressus; Cynodon dactylon; Cynodon transvaalensis; Digitaria didactyla; Paspalum notatum; Stenotaphrum secundatum; Eremochloa ophiuroides; Zoysia Japonica
Abstract/Contents:"The effects of fertilisers on 8 tropical turfgrasses growing in 100-L bags of sand were studied over winter in Murrumba Downs, just north of Brisbane in southern Queensland (latitude 27.4°S, longitude 153.1°E). The species used were: Axonopus compressus (broad-leaf carpetgrass), Cynodon dactylon (bermudagrass 'Winter Green') and C. Dactylon × C. Transvaalensis hybrid ('Tifgreen'), Digitaria didactyla (Queensland blue couch), Paspalum notatum (bahiagrass '38824'), Stenotaphrum secundatum (buffalograss 'Palmetto'), Eremochloa ophiuroides (centipedegrass 'Centec') and Zoysia japonica (zoysiagrass 'ZT-11'). Control plots were fertilised with complete fertilisers every month from May to September (72 kg N/ha, 31 kg P/ha, 84 kg K/ha, 48 kg S/ha, 30 kg Ca/ha and 7.2 kg Mg/ha), and unfertilised plots received no fertiliser. Carpetgrass and standard bermudagrass were the most sensitive species to nutrient supply, with lower shoot dry weights in the unfertilised plots (shoots mowed to thatch level) compared with the fertilised plots in June. There were lower shoot dry weights in the unfertilised plots in July for all species, except for buffalograss, centipedegrass and zoysiagrass, and lower shoot dry weights in the unfertilised plots in August for all species, except for centipedegrass. At the end of the experiment in September, unfertilised plots were 11% of the shoot dry weights of fertilised plots, with all species affected. Mean shoot nitrogen concentrations fell from 3.2 to 1.7% in the unfertilised plots from May to August, below the sufficiency range for turfgrasses (2.8-3.5%). There were also declines in P (0.45-0.36%), K (2.4-1.5%), S (0.35-0.25%), Mg (0.24-0.18%) and B (9-6 mg/kg), which were all in the sufficiency range. The shoots in the control plots took up the following levels (kg/ha.month) of nutrients: N, 10.0-27.0; P, 1.6-4.0; K, 8.2-19.8; S, 1.0-4.2; Ca, 1.1-3.3; and Mg, 0.8-2.2, compared with applications (kg/ha.month) of: N, 72; P, 31; K, 84; S, 48; Ca, 30; and Mg, 7.2, indicating a recovery of 14-38% for N, 5-13% for P, 10-24% for K, 2-9% for S, 4-11% for Ca and 11-30% for Mg. These results suggest that buffalograss, centipedegrass and zoysiagrass are less sensitive to low nutrient supply than carpetgrass, bermudagrass, blue couch and bahiagrass. Data on nutrient uptake showed that the less sensitive species required only half or less of the nitrogen required to maintain the growth of the other grasses, indicating potential savings for turf managers in fertiliser costs and the environment in terms of nutrients entering waterways."
Language:English
References:33
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Menzel, C. M., and P. Broomhall. 2006. Nutrient uptake in tropical turfgrasses growing in winter in southern Queensland. Aust. J. Exp. Agric. 46(9):p. 1217-1224.
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DOI: 10.1071/EAO42246
Web URL(s):
http://www.publish.csiro.au/?act=view_file&file_id=EA04246.pdf
    Last checked: 05/24/2007
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
http://www.publish.csiro.au/view/journals/dsp_journal_fulltext.cfm?nid=72&f=EA04246
    Last checked: 05/24/2007
    Access conditions: Item is within a limited access-website
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