Abstract
Abstract A study was conducted in northern Colorado to evaluate the effectiveness of two compost products on the improvement of turfgrass color and quality, necrotic ringspot (NRS) disease suppression, and thatch reduction. Two Kentucky bluegrass ( Poa pratensis L.) home lawns with a history of NRS were chosen for the study. Treatments were applied twice during the 2018 growing season after all plots were aerated and consisted of (a) inoculated compost topdressing at a rate of 66 m 3 ha –1 , (b) dairy manure compost topdressing at a rate of 66 m 3 ha –1 , (c) urea fertilizer at 49 kg N ha –1 , and (d) a control (aeration only with no fertilizer or compost applied). Data were collected every 2 wk from May to October in 2018, and included the percentage of disease‐affected turf, and turfgrass color and quality. Thatch depth was measured monthly. The inoculated and conventional compost plots had less disease than the control, and the inoculated compost showed significant disease suppression earlier than conventional compost. Season‐long averages showed that the plots treated with either of the compost products had better color and turf quality than the control. When data were pooled over the course of the growing season, there were no significant differences between the two compost treatments with regard to NRS disease severity or quality. Thatch depth in plots that received inoculated compost was 17% less than in plots that received conventional compost and fertilizer. This study demonstrated that compost decreased NRS incidence and improved turf color and quality.
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Claims 7
Claim · model-written summary
Inoculated compost reduced disease versus control.
- Taxon
- Kentucky bluegrass
.jpg?width=60)
Poa pratensist0 - Treatment
- inoculatede0
- Outcome
- diseasee0
- Direction
- lesse0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The inoculated and conventional compost plots had less disease than the control”
t0“Kentucky bluegrass”
Claim · model-written summary
Conventional compost reduced disease versus control.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- conventional composte0
- Outcome
- diseasee0
- Direction
- lesse0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inoculated and conventional compost plots had less disease than the control”
t0“Kentucky bluegrass”
Claim · model-written summary
Inoculated compost suppressed disease significantly earlier than conventional compost.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- inoculated composte0
- Outcome
- disease suppressione0
- Direction
- earliere0
- Comparator
- conventional composte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the inoculated compost showed significant disease suppression earlier than conventional compost”
t0“Kentucky bluegrass”
Claim · model-written summary
Inoculated compost improved turf color and quality over control.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- compost productse0
- Outcome
- color and turf qualitye0
- Direction
- bettere0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plots treated with either of the compost products had better color and turf quality than the control”
t0“Kentucky bluegrass”
Claim · model-written summary
Compost types did not significantly differ in disease severity.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- two compost treatmentse0
- Outcome
- NRS disease severitye0
- Direction
- no significant differencese0
- Comparator
- two compost treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the two compost treatments with regard to NRS disease severity or quality”
t0“Kentucky bluegrass”
Claim · model-written summary
Compost types did not significantly differ in quality.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- two compost treatmentse0
- Outcome
- qualitye0
- Direction
- no significant differencese0
- Comparator
- two compost treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were no significant differences between the two compost treatments with regard to NRS disease severity or quality”
t0“Kentucky bluegrass”
Claim · model-written summary
Inoculated compost reduced thatch depth by 17% versus conventional compost and fertilizer.
- Taxon
- Kentucky bluegrassPoa pratensist0
- Treatment
- inoculated composte0
- Outcome
- Thatch depthe0
- Direction
- lesse0
- Value
- 17%e0
- Comparator
- conventional compost and fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thatch depth in plots that received inoculated compost was 17% less than in plots that received conventional compost and fertilizer.”
t0“Kentucky bluegrass”
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