Fastlink to record 315086
Showing items 1 to 1 of 1.
| Full TGIF Record # 315086 Item 1 of 1 |
|
|---|---|
| Web URL(s): | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/126947 Last checked: 03/26/2021 |
| Publication Type: | Report |
| Content Type: | Abstract or Summary Only |
| Author(s): | Leiby, Nathanial; Schlossberg, Maxim J. |
| Author Affiliation: | Leiby: Penn State University, University Park, PA ; Schlossberg: Assistant Professor, Pennsylvania State University, University Park, PA |
| Title: | Programmatic vs. responsive phosphorus fertilization strategies for creeping bentgrass putting greens |
| Section: | Golf turf management poster (includes student competition) Other records with the "Golf turf management poster (includes student competition)" Section C05 turfgrass science Other records with the "C05 turfgrass science" Section |
| Meeting Info.: | November 9-13 |
| Source: | ASA, CSSA and SSSA International Annual Meetings. No. n/a, November 2020, p. 126947. |
| 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/ aper126947/2020_Pfert_poster.pdf Last checked: 03/26/2021 Requires: PDF Reader Notes: Direct download |
| Abstract/Contents: | The frequent mowing requirement affords turfgrass regularly attentive visitation by trained personnel. Combined with the ease in which straightforward P deficiency symptoms are identified, a responsive strategy of applying P fertilizer immediately following emergence of visual P deficiency symptoms has been proposed. Which, relative to current programmatic and/or soil test driven responsive fertilization approaches, may prove widely effective. Our research objectives are to quantify whether: (1) programmatic or responsive P fertilization regiments support creeping bentgrass vigor, canopy color, canopy density, leaf P, and/or root length density level(s) relative to those simultaneously observed in unfertilized control plots; and (2) P deficient creeping bentgrass canopies reflect a telltale multispectral signature. Penn A-1/A-4 creeping bentgrass programmatic plots were treated with monopotassium phosphate (MKP, 0-52-35) to supply 100 kg P2O5 (ha yr)1 via four split applications. Random assignment and application of the responsive P fertilization treatment (50 kg P2O5 ha1, as MKP) to a previously unfertilized control plot in each block was triggered by one or both of the following: (1) Visual deficiency symptoms; i.e., purple coloration of old leaves, on =7 unfertilized plots, or (2) leaf clipping P levels ≤4.20 g kg-1 in one or more unfertilized plots in ≥4 blocks. A passive multispectral radiometer was used to collect semi-weekly canopy vegetative and color indices. A deep root sampling event (10-28 cm depth) preempted the responsive P fertilization treatment. Likewise, emergence of visual deficiency symptomology was immediately followed by clipping yield collection and subsequent leaf tissue analysis. A second, deep root sampling event was collected from all plots one year following responsive treatment initiation. While sufficient leaf P levels and a canopy free of deficiency symptoms are readily supported by the programmatic P fertilization regiment, improved vigor and/or morphologic features were less so. |
| Language: | English |
| References: | 0 |
| Note: | This item is an abstract only |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Leiby, N., and M. J. Schlossberg. 2020. Programmatic vs. responsive phosphorus fertilization strategies for creeping bentgrass putting greens. Agron. Abr. n/a:p. 126947. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/315086 |
| Choices for finding the above item: | |
| Web URL(s) : | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/126947 Last checked: 03/26/2021 |
| InterLibrary Loan: | Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
| If there are problems with this record, send us feedback |