Full TGIF Record # 315085
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Web URL(s):https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/125649
    Last checked: 03/26/2021
Publication Type:
Content Type:Abstract or Summary Only
Author(s):Lindsey, Alex; Thoms, Adam; Christians, Nick E.; Pease, Benjamin; Goldsby, Anthony
Author Affiliation:Lindsey, Christians: Iowa State University, Ames, IA; Thoms: Assistant Professor, Iowa State University, Ames, IA; Pease: PhD Student and Research Associate II, Iowa State University, Ames, IA; Goldsby: The Andersons, Inc., Kansas City, MO
Title:Creeping bentgrass putting green soil health response to humic fertilizers
Section:Golf turf management poster (includes student competition)
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C05 turfgrass science
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Meeting Info.:November 9-13
Source:ASA, CSSA and SSSA International Annual Meetings. November 2020, p. 125649.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Related Web URL:https://scisoc.confex.com/scisoc/2020am/mediafile/Handout/ aper125649/ASA%20Poster-AJ%202020_final.pdf
    Last checked: 03/26/2021
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Abstract/Contents:There are many claims of the benefits of humic products on turfgrass, which include: increased effectiveness of fertilizers, increased nutrient uptake and efficiency, a better-developed root system, and improved stress tolerances. However, minimal research has been conducted to substantiate these claims. The objective of this study is to evaluate soil health parameters of a sand-based turfgrass fertilized with humic substances while maintaining turfgrass quality. This is part of the first year of a two-year study conducted at the Iowa State University Horticulture Research Station in Ames, IA, on a Penncross creeping bentgrass (Agrostis stolonifera L.) putting green established over a sand-based rootzone meeting United States Golf Association specifications. Fertilizer treatments included: humic-coated urea (HCU; two rates), HCU + humic dispersing granules (HDG), HCU + black gypsum dispersing granules (BGDG), urea, HDG, and a non-fertilized control. There was a significant interaction between treatment and rating date for visual quality (VQ) and percent green cover (PGC). There was not a significant treatment effect for any of the measured soil parameters, which included cation exchange capacity, organic matter, and soil-test biological activity. Overall, the VQ for all treatments was greater than the HDG and non-fertilized. On 31 Oct., HCU + HDG (6.3) and urea (5.7) had a greater VQ relative to all other treatments (3.3-5.3). There were differences between PGC on two of the rating dates. On 24 June, all treatments including the non-fertilized (98.5-99.6%) had a higher PGC compared to HDG (96.8%). On 31 Oct., HCU + HDG (89.4%) had the highest PGC and all treatments (74.5-83.6%) had a greater PGC than the HDG (34.2%) and non-fertilized (48.6%). Overall, applications of humic fertilizers resulted in similar turfgrass VQ and PGC relative to urea. HCU applied at a decreased N rate maintained turfgrass VQ and PGC relative to the full N application rate.
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
2020. Creeping bentgrass putting green soil health response to humic fertilizers. Agron. Abr. p. 125649.
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    Last checked: 03/26/2021
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