Abstract
Forage sorghum is an alternative source for biofuel feedstock production and may also provide forage for livestock operations. Introducing biofuel feedstock as a dual-use forage to livestock operations has the potential to increase the adoption of biofuel feedstock production. However, additional technical agronomic information focusing on tillage, row arrangement, and harvest date for forage sorghum planted into pasturelands intended for dual use is needed. Three tillage treatments, disking and rototilling (RT), chisel plow (CP), and no tillage (NT), and two row arrangement treatments, single-row planting with 76.2 cm rows and twin rows of 17.8 cm on 76.2 cm centers, were tested for effects on forage sorghum yield in a 3-cut system. This study tested two sites in Booneville, AR, from 2010 to 2012. Several interactions with year were detected, likely due to large precipitation differences within and among years. The year greatly affected the yield, with greater (p < 0.05) yields in year 1 compared to years 2 and 3 in both locations. No till resulted in lower yields in some years and harvest dates, though no clear trend was detected among tillage treatments over years. Twin rows generally did not improve yield, except for the third harvest date at one location. No strong trends for tillage or row arrangement effects were observed in this study. Inconsistencies may have resulted from the strong influence of year or interactions of multiple factors, which may challenge producers interested in utilizing forage sorghum for biofuels and livestock feed.
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Claims 5
Claim · model-written summary
Year greatly affected forage sorghum yield, with greater yields in year 1 than in years 2 and 3 at both locations (p < 0.05).
- Taxon
- Forage sorghume1
- Treatment
- yeare2
- Outcome
- yielde2
- Direction
- greatere2
- Comparator
- years 2 and 3e2
- Setting
- Booneville, ARe3
Not reportedValue
Verbatim
e1“Forage sorghum is an alternative source for biofuel feedstock production”
e2“The year greatly affected the yield, with greater (p < 0.05) yields in year 1 compared to years 2 and 3 in both locations”
e3“This study tested two sites in Booneville, AR, from 2010 to 2012”
Claim · model-written summary
Several interactions with year were detected in the forage sorghum trials, likely due to large precipitation differences within and among years.
- Taxon
- Forage sorghume1
- Treatment
- yeare4
- Outcome
- interactions with yeare4
- Qualifier
- large precipitation differences within and among yearse4
Not reportedDirection
Verbatim
e1“Forage sorghum is an alternative source for biofuel feedstock production”
e4“Several interactions with year were detected, likely due to large precipitation differences within and among years”
Claim · model-written summary
No-till resulted in lower forage sorghum yields in some years and harvest dates.
- Taxon
- Forage sorghume1
- Treatment
- No tille5
- Outcome
- yieldse5
- Direction
- lowere5
- Qualifier
- in some years and harvest datese5
Not reportedComparator
Verbatim
e1“Forage sorghum is an alternative source for biofuel feedstock production”
e5“No till resulted in lower yields in some years and harvest dates, though no clear trend was detected among tillage treatments over years”
Claim · model-written summary
No clear trend in forage sorghum yield over years was detected among tillage treatments.
Not reportedComparator
Verbatim
e1“Forage sorghum is an alternative source for biofuel feedstock production”
e5“No till resulted in lower yields in some years and harvest dates, though no clear trend was detected among tillage treatments over years”
Claim · model-written summary
Twin rows generally did not improve forage sorghum yield compared with single-row planting, except at the third harvest date at one location.
Verbatim
e1“Forage sorghum is an alternative source for biofuel feedstock production”
e6“Twin rows generally did not improve yield, except for the third harvest date at one location”
e7“two row arrangement treatments, single-row planting with 76.2 cm rows and twin rows of 17.8 cm on 76.2 cm centers”
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