Abstract
Abstract Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky involves planting soybean after soft red winter wheat ( Triticum aestivum L.) harvest during June and July. Double‐crop soybean yields are lower than full‐season soybean yield planted earlier in the spring. This research aimed to determine the effect of seeding rate, seed treatment, and applying foliar fungicide and insecticide at the R3 growth stage at two planting timings on double‐crop soybean seed yield, yield components, and seed quality. Field trials were established in Princeton, KY, in 2017, 2018, and 2019 after wheat harvest. Planting double‐crop soybean early, after wheat was harvested at 20 to 22% grain moisture, resulted in increased seed yield, seeds ft –2 , and protein concentration compared with double‐crop soybean planted later. A seeding rate of 225,000 seeds acre –1 resulted in increased seed yield, seeds ft –2 , and seed protein concentration compared with 150,000 seeds acre –1 . A seed treatment including fungicides and an insecticide did not impact seed yield, yield components, or seed protein or oil concentration compared with no seed treatment. Applying a prophylactic foliar fungicide and insecticide treatment at the R3 growth stage increased seed yield and seed mass compared with an economic threshold application. In addition, the most intensive management (225,000 seeds acre –1 , seed treatment, and prophylactic fungicide and insecticide) yielded ∼25% more than the base treatment and had more seeds ft –2 . The results are the first to indicate the potential for intensive management practices to increase double‐crop soybean productivity in Kentucky.
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Claims 7
Claim · model-written summary
Double-crop soybean yields are lower than full-season yields.
- Taxon
- soybean
Glycine maxe0 - Outcome
- Double‐crop soybean yieldse0
- Direction
- lowere0
- Comparator
- full‐season soybean yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Double‐crop soybean yields are lower than full‐season soybean yield planted earlier in the spring”
Claim · model-written summary
Earlier planting increased seed yield, seeds per square foot and protein concentration.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Planting double‐crop soybean earlye0
- Outcome
- seed yield, seeds ft –2 , and protein concentratione0
- Direction
- increasede0
- Qualifier
- after wheat was harvested at 20 to 22% grain moisturee0
- Comparator
- double‐crop soybean planted latere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Planting double‐crop soybean early, after wheat was harvested at 20 to 22% grain moisture, resulted in increased seed yield, seeds ft –2 , and protein concentration compared with double‐crop soybean planted later”
Claim · model-written summary
A 225,000 seeds acre−1 rate increased yield, seed number and protein versus 150,000.
- Taxon
- soybeanGlycine maxe1
- Treatment
- 225,000 seeds acre –1e0
- Outcome
- seed yield, seeds ft –2 , and seed protein concentratione0
- Direction
- increasede0
- Comparator
- 150,000 seeds acre –1e0
- Setting
- Kentuckye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A seeding rate of 225,000 seeds acre –1 resulted in increased seed yield, seeds ft –2 , and seed protein concentration compared with 150,000 seeds acre –1”
e1“Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky”
Claim · model-written summary
The seed treatment did not affect yield, yield components or protein and oil concentration.
- Taxon
- soybeanGlycine maxe1
- Treatment
- seed treatment including fungicides and an insecticidee0
- Outcome
- seed yield, yield components, or seed protein or oil concentratione0
- Direction
- did not impacte0
- Comparator
- no seed treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A seed treatment including fungicides and an insecticide did not impact seed yield, yield components, or seed protein or oil concentration compared with no seed treatment”
e1“Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky”
Claim · model-written summary
Prophylactic foliar fungicide and insecticide at R3 increased seed yield and mass relative to economic threshold application.
- Taxon
- soybeanGlycine maxe1
- Treatment
- prophylactic foliar fungicide and insecticide treatment at the R3 growth stagee0
- Outcome
- seed yield and seed masse0
- Direction
- increasede0
- Comparator
- economic threshold applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying a prophylactic foliar fungicide and insecticide treatment at the R3 growth stage increased seed yield and seed mass compared with an economic threshold application”
e1“Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky”
Claim · model-written summary
The most intensive management yielded about 25% more than base treatment.
- Taxon
- soybeanGlycine maxe1
- Treatment
- most intensive management (225,000 seeds acre –1 , seed treatment, and prophylactic fungicide and insecticide)e0
- Outcome
- yieldede0
- Direction
- moree0
- Value
- ∼25%e0
- Comparator
- base treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most intensive management (225,000 seeds acre –1 , seed treatment, and prophylactic fungicide and insecticide) yielded ∼25% more than the base treatment”
e1“Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky”
Claim · model-written summary
The most intensive management had more seeds per square foot.
- Taxon
- soybeanGlycine maxe1
- Treatment
- most intensive management (225,000 seeds acre –1 , seed treatment, and prophylactic fungicide and insecticide)e0
- Outcome
- seeds ft –2e0
- Direction
- moree0
- Comparator
- base treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most intensive management (225,000 seeds acre –1 , seed treatment, and prophylactic fungicide and insecticide) yielded ∼25% more than the base treatment and had more seeds ft –2”
e1“Double‐crop soybean [ Glycine max (L.) Merr.] production in Kentucky”
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2 papers in the same direction as this paper
- no effect
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.