Abstract
Compared to no‐till, strip‐till can offer improved seedbed conditions and deep banding of fertilizer. The objective of this study was to quantify the effect of rate and placement of P and K in no‐till and strip‐till systems on soybean [ Glycine max (L.) Merr.] seed yield. A 3‐yr field experiment was conducted near Urbana, IL, on Flanagan silt loam (fine, smectitic, mesic Aquic Argiudolls) and Drummer silty clay loam (fine‐silty, mixed, superactive, mesic Typic Endoaquolls) soils, with soybean planted following corn ( Zea mays L.). Tillage/fertilizer placement was the main plot with no‐till/broadcast (NTBC); no‐till/deep band (NTDB); and strip‐till/deep band (STDB); deep band placement was 15 cm beneath the planted row. Phosphorus–fertilizer rate (0, 12, 24, and 36 kg P ha −1 yr −1 ) was the subplot, and K‐fertilizer rate (0, 42, 84, and 168 kg K ha −1 yr −1 ) was the sub‐subplot. Soil water, soil and trifoliate P and K, and seed yield were measured. Overall, STDB produced 3.1 Mg seed ha −1 , 10, and 7% more yield than NTBC and NTDB, respectively. Seed yield, number of pods plant −1 , and trifoliate P concentration and accumulation increased with P fertilization uniformly across tillage/fertilizer placement indicating that fertilization cannot be reduced with deep band applications relative to broadcast applications without a reduction in seed yield, but deep banding increased subsurface soil test levels. Potassium fertilization decreased seed yield in both no‐till systems but not in the STDB system. While P and K placement produced no differences, improved soybean yield and nutrient accumulation resulted from a tillage effect with STDB relative to the no‐till systems.
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Claims 10
Claim · model-written summary
Strip tillage with deep banding yielded 3.1 Mg seed ha −1.
Not reportedTaxon
Verbatim
e0“Overall, STDB produced 3.1 Mg seed ha −1 , 10, and 7% more yield than NTBC and NTDB, respectively.”
Claim · model-written summary
Strip tillage with deep banding yielded 10% more than no tillage with broadcast fertilizer.
Not reportedTaxon
Verbatim
e0“Overall, STDB produced 3.1 Mg seed ha −1 , 10, and 7% more yield than NTBC and NTDB, respectively.”
Claim · model-written summary
Strip tillage with deep banding yielded 7% more than no tillage with deep banding.
Not reportedTaxon
Verbatim
e0“Overall, STDB produced 3.1 Mg seed ha −1 , 10, and 7% more yield than NTBC and NTDB, respectively.”
Claim · model-written summary
Phosphorus fertilization increased soybean seed yield, pod number, and trifoliate P concentration and accumulation across fertilizer placements.
- Treatment
- P fertilizatione0
- Outcome
- Seed yield, number of pods plant −1 , and trifoliate P concentration and accumulatione0
- Direction
- increasede0
Not reportedTaxonComparator
Verbatim
e0“Seed yield, number of pods plant −1 , and trifoliate P concentration and accumulation increased with P fertilization uniformly across tillage/fertilizer placement”
Claim · model-written summary
Deep banding increased subsurface soil test levels relative to broadcast application.
Not reportedTaxonComparator
Verbatim
e0“deep banding increased subsurface soil test levels.”
Claim · model-written summary
Potassium fertilization decreased soybean seed yield in both no till systems.
- Treatment
- Potassium fertilizatione0
- Outcome
- seed yielde0
- Direction
- decreasede0
- Qualifier
- both no‐till systemse0
Not reportedTaxonComparator
Verbatim
e0“Potassium fertilization decreased seed yield in both no‐till systems but not in the STDB system.”
Claim · model-written summary
Potassium fertilization did not decrease soybean seed yield in the strip tillage deep banding system.
Not reportedTaxonComparatorDirection
Verbatim
e0“Potassium fertilization decreased seed yield in both no‐till systems but not in the STDB system.”
Claim · model-written summary
P and K placement produced no differences in soybean outcomes.
- Taxon
- soybean
Glycine maxe0 - Treatment
- P and K placemente0
- Outcome
- differencese0
- Direction
- no differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While P and K placement produced no differences, improved soybean yield and nutrient accumulation resulted from a tillage effect with STDB relative to the no‐till systems.”
Claim · model-written summary
Strip tillage with deep banding improved soybean yield and nutrient accumulation relative to no tillage systems.
- Taxon
- soybeanGlycine maxe0
- Treatment
- STDBe0
- Outcome
- yield and nutrient accumulatione0
- Direction
- improvede0
- Comparator
- no‐till systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improved soybean yield and nutrient accumulation resulted from a tillage effect with STDB relative to the no‐till systems.”
Claim · model-written summary
Deep band P fertilization cannot be reduced relative to broadcast without reducing soybean seed yield.
Not reportedTaxon
Verbatim
e0“fertilization cannot be reduced with deep band applications relative to broadcast applications without a reduction in seed yield”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
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See all 1,192 papers →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.