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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=389
Last checked: 08/06/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | McCurdy, James D.;
McElroy, J. Scott |
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| Author Affiliation: | Auburn University, Auburn, AL |
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| Title: | Effects of nitrogen and Rhizobium inoculation on white clover characteristics and control |
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| Section: | Posters: Weed management in turf
Other records with the "Posters: Weed management in turf" Section
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| Meeting Info.: | San Juan, Puerto Rico: January 24-26, 2011 |
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| Source: | 2011 Proceedings, Southern Weed Science Society. Vol. 64, 2011, p. 281. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Eremochloa ophiuroides; Inoculation; Methyl bromide; Morphological evaluation; Nitrogen fertilization; Rhizobium leguminosarum; Sandy loam soils; Weed control
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| Abstract/Contents: | "Understanding the effects of inoculation and nitrogen fertilization upon clover morphology may lead to a more integrated approach of controlling clover within turfgrass. An experiment was initiated April 5, 2010 at Auburn University in an environmentally controlled greenhouse. Temperatures were monitored and maintained between 25 and 32°C. The experiment was conducted as a completely random design with a two-by-six factorial treatment arrangement replicated four times. Factorial levels were seed treatment (inoculated vs. un-inoculated) by N-rate (0, 0.6, 1.2, 2.4, 4.8, and 9.6 g N m-2) applied monthly as CaNO3 for three months. Pots were simultaneously fertilized with a modified 6x, N free, Hoaglands solution, including minors, to prevent nutrient deficiencies. Seeds of white clover were inoculated with a peat-based inoculant containing the clover specific Rhizobium leguminosarum biovar trifolii. Inoculant was applied dry directly to seeds according to specimen label. As a control, finely ground peat-moss was applied to un-inoculated seeds. Seeds (approximately 25) were sown into 90 cm2, 700cm3 plastic pots containing a Wickham sandy loam soil (fine-loamy, siliceous, subactive, thermic Typic Hapludult). Soil for the study was excavated at 5 to 20 cm depth from a centipede grass (Eremochloa ophiuroides) site which had been fumigated with methyl bromide three years prior and had no recent (within three years) history of legume growth. Soil was screened to remove debris and was mixed thoroughly. One month after germination, clover seedlings were thinned to five per pot. Plants received overhead mist irrigation daily and supplemental irrigation as necessary. Plants were mown with a rotary mower (5.1 cm) on a bi-weekly basis until two weeks before final harvest. Three months after the initial fertilization, foliar growth was harvested at soil level, and roots were gently shaken and washed free of soil. Nodules were removed for counting, and all root matter was dried to obtain dry weights (DW). Plant foliage was dried in a plant press, and leaf area was measured. Foliar DW, trifoliate leaf number, and the length of three randomly sub-sampled petioles were recorded. In addition foliar-, nodule-, and rootsamples were analyzed for total Carbon (C) and N by dry combustion analysis. Data were analyzed using PROC Mixed within SAS. Data were normally distributed. Differences were determined by "Type 3 Tests of Fixed Effects," with p-value less than 0.05 indicating a significant effect. Neither inoculation by N-rate interaction or inoculation main effect was observed. Only root DW differed due to N-rate, increasing from 250 to nearly 500 mg pot-1 as rate increased. Foliar DW as well as petiole length, leaf - area, -count, and -size were unaffected by N-rate. Percent C and N of roots, nodules, and foliage were similar to those reported within previous literature." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCurdy, J. D., and J. S. McElroy. 2011. Effects of nitrogen and Rhizobium inoculation on white clover characteristics and control. South. Weed Sci. Soc. Proc. 64:p. 281. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2011 Proceedings-SWSS.pdf#page=389
Last checked: 08/06/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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