Abstract
Abstract Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential and correspondingly drive greater nutrient uptake. Whether increased dry matter (DM) and reduced interplant competition at decreased seeding rates improves grain yield response to fertilizer applications is not clear. A 3‐site‐year trial was conducted to evaluate soybean seeding rates and fertilizer applications on plant growth, nutrient accumulation, grain yield, and economic return. Seeding rates included: 123,500; 222,400; 321,200; and 420,100 seeds ha −1 . Fertilizer applications consisted of: unfertilized; 90 kg MOP (0−0−62 N−P−K) ha −1 pre‐plant incorporated (PPI); 168 kg MESZ (12‐40−0−10−1 N−P−K−S−Zn) ha −1 applied 5 by 5 cm below and to the side of the seed at planting (5 × 5); and 90 kg MOP ha −1 PPI and 168 kg MESZ ha −1 applied 5 × 5. Dry matter (V4) increased 37.7 to 116.6% and 73.3 to 137.5% with seeding rates ≥222,400 seeds ha −1 and MESZ applications, respectively, with greater early‐season DM supporting increased nutrient uptake and grain yield potential. Increasing seeding rate from 123,500 to 222,400 seeds ha −1 improved grain yield 9% but no differences were observed above 222,400 seeds ha −1 . The MESZ and MOP+MESZ applications increased grain yield 7.4 and 6.9%, respectively, while MOP did not affect grain yield across site‐years. As emphasis on creating more durable, resilient agroecosystems continues, results suggest seeding rates ≥222,400 seeds ha −1 maximized DM accumulation facilitating nutrient uptake which may be paramount to improving fertilizer management or reducing post‐harvest residual soil nutrients in impaired watersheds or regions of greater nutrient loss potential.
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Claims 7
Claim · model-written summary
Seeding rates of at least 222,400 seeds ha-1 increased V4 dry matter of soybean by 37.7 to 116.6%.
- Taxon
- soybean
Glycine maxe4 - Treatment
- seeding rates ≥222,400 seeds ha −1e0
- Outcome
- Dry matter (V4)e0
- Direction
- increasede0
- Value
- 37.7 to 116.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e0“Dry matter (V4) increased 37.7 to 116.6% and 73.3 to 137.5% with seeding rates ≥222,400 seeds ha −1 and MESZ applications, respectively”
Claim · model-written summary
MESZ applications increased V4 dry matter of soybean by 73.3 to 137.5%.
- Taxon
- soybeanGlycine maxe4
- Treatment
- MESZ applicationse0
- Outcome
- Dry matter (V4)e0
- Direction
- increasede0
- Value
- 73.3 to 137.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e0“Dry matter (V4) increased 37.7 to 116.6% and 73.3 to 137.5% with seeding rates ≥222,400 seeds ha −1 and MESZ applications, respectively”
Claim · model-written summary
Increasing seeding rate from 123,500 to 222,400 seeds ha-1 improved soybean grain yield by 9%.
- Taxon
- soybeanGlycine maxe4
- Treatment
- Increasing seeding ratee1
- Outcome
- grain yielde1
- Direction
- improvede1
- Value
- 9%e1
- Comparator
- 123,500e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e1“Increasing seeding rate from 123,500 to 222,400 seeds ha −1 improved grain yield 9% but no differences were observed above 222,400 seeds ha −1”
Claim · model-written summary
Seeding rates above 222,400 seeds ha-1 did not change soybean grain yield.
- Taxon
- soybeanGlycine maxe4
- Treatment
- above 222,400 seeds ha −1e1
- Outcome
- grain yielde1
- Direction
- no differences were observede1
- Comparator
- 222,400e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e1“Increasing seeding rate from 123,500 to 222,400 seeds ha −1 improved grain yield 9% but no differences were observed above 222,400 seeds ha −1”
Claim · model-written summary
MESZ applications increased soybean grain yield by 7.4%.
- Taxon
- soybeanGlycine maxe4
- Treatment
- MESZ applicationse2
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- 7.4e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e2“The MESZ and MOP+MESZ applications increased grain yield 7.4 and 6.9%, respectively”
Claim · model-written summary
MOP+MESZ applications increased soybean grain yield by 6.9%.
- Taxon
- soybeanGlycine maxe4
- Treatment
- MOP+MESZ applicationse2
- Outcome
- grain yielde2
- Direction
- increasede2
- Value
- 6.9%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e2“The MESZ and MOP+MESZ applications increased grain yield 7.4 and 6.9%, respectively”
Claim · model-written summary
MOP did not affect soybean grain yield across site-years.
- Taxon
- soybeanGlycine maxe4
- Treatment
- MOPe3
- Outcome
- grain yielde3
- Direction
- did not affecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Greater soybean ( Glycine max L. Merr.) total dry matter (TDM) production may support yield potential”
e3“MOP did not affect grain yield”
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