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| Web URL(s): | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/131760
Last checked: 04/02/2021
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https://scisoc.confex.com/scisoc/2020am/mediafile/Handout/Paper131760/GuertalPhosphite2020.pdf
Last checked: 04/02/2021
Requires: PDF Reader
Notes: Direct download |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary Only |
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| Author(s): | Guertal, E. A. |
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| Author Affiliation: | Associate Professor, Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL |
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| Title: | Exploring phosphite for creeping bentgrass |
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| Section: | Turfgrass science poster
Other records with the "Turfgrass science poster" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | November 9-13, 2035 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. November 2020, p. 131760. |
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| # of Pages: | 1 |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| Abstract/Contents: | The effect of phosphite as a potential fertilizer source is partially dependent on the phosphate status of the plant and soil, and little research has examined this interaction. The objective of this project was to: 1) examine commercial phosphite products for their effect on bentgrass (Agrostis stolonifera L.) quality, and, 2) determine if recommended rates of commercial phosphite products affect bentgrass growth, across a range of soil P content. In 2019 and 2020 a field trial was conducted, located in Alabama on a Penn G-2 creeping bentgrass putting green that had low soil P (3 mg kg-1). Soil P was applied as granular triple superphosphate at 2.5, 2.9 and 9.8 g P2O5 m-2. Phosphite was applied as one phosphite P source in a foliar spray (10 gpa rate) at the recommended rate (1.3 mL product m-2 2 week-1). Thus, treatments were soil P (4 rates, one being no P added) with and without phosphite, all replicated 4 times. Collected data included monthly dry weight of harvest clippings (and total P determination), monthly shoot density and root-length density. Plots were rated for color and quality approximately weekly, from April until December. Soil samples were removed quarterly and analyzed for P content. Early in the study the initial application of high rates of P fertilizer and phosphite created slight discoloration in turfgrass color, a result of higher rates of triple super phosphate applied at the same time as the foliar phosphite spray application. This effect was only temporary, and disappeared within two weeks. Interactions between phosphite and phosphate are present, and will be discussed further. |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
2020. Exploring phosphite for creeping bentgrass. Agron. Abr. p. 131760. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/131760
Last checked: 04/02/2021
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https://scisoc.confex.com/scisoc/2020am/mediafile/Handout/Paper131760/GuertalPhosphite2020.pdf
Last checked: 04/02/2021
Requires: PDF Reader
Notes: Direct download |
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