Abstract
Abstract Strip‐tillage is an emerging conservation tillage/residue management system for corn production in the Northern Great Plains. Producers in Manitoba are becoming more interested in strip‐tillage as it may provide many of the soil conservation benefits of no‐tillage production without potential limitations of cold soils in the spring common to this region. A 2‐year study evaluated corn ( Zea mays L.) response to phosphorus (P) fertilization in strip‐tillage and conventional tillage systems. Fertilization treatments included a control (no P), two rates of P (30 and 60 kg P 2 O 5 ha −1 ), applied as monoammonium phosphate (11–52–0) either in the fall with a strip‐tillage unit (as a deep‐band, 10–13 cm deep) or in the spring with a corn planter (as a side‐band, 5 cm beside and 2.5 cm below the seed). Spring side‐banded P treatments increased early‐season biomass at 2 of 4 site‐years by up to 103% compared to the unfertilized controls. At the same 2 site‐years, banded P treatments reduced days to silking by 2–3 days, compared to the unfertilized controls. Across all site‐years, spring side‐banded P treatments increased grain yield by an average of 467 kg ha −1 and decreased grain moisture content by 9 g kg −1 compared to the unfertilized control. Overall, side‐banded P at planting was agronomically superior to precision fall deep‐banding. There was also no agronomic penalty for corn grown with strip‐tillage, compared to conventional tillage, suggesting that strip‐tillage is an agronomically promising practice for corn production in southern Manitoba.
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Claims 6
Claim · model-written summary
Spring side-banded phosphorus raised early corn biomass by up to 103% at two site-years.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- Spring side‐banded P treatmentse0
- Outcome
- early‐season biomasse0
- Direction
- increasede0
- Value
- 103%e0
- Qualifier
- 2 of 4 site‐yearse0
- Comparator
- unfertilized controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spring side‐banded P treatments increased early‐season biomass at 2 of 4 site‐years by up to 103% compared to the unfertilized controls.”
t0“corn”
Claim · model-written summary
Banded phosphorus shortened time to silking by 2–3 days.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- banded P treatmentse0
- Outcome
- days to silkinge0
- Direction
- reducede0
- Value
- 2–3 dayse0
- Comparator
- unfertilized controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“banded P treatments reduced days to silking by 2–3 days, compared to the unfertilized controls.”
t0“corn”
Claim · model-written summary
Spring side-banded phosphorus increased grain yield by an average of 467 kg ha −1.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- spring side‐banded P treatmentse0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 467 kg ha −1e0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring side‐banded P treatments increased grain yield by an average of 467 kg ha −1 and decreased grain moisture content by 9 g kg −1 compared to the unfertilized control.”
t0“corn”
Claim · model-written summary
Spring side-banded phosphorus decreased grain moisture content by 9 g kg −1.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- spring side‐banded P treatmentse0
- Outcome
- grain moisture contente0
- Direction
- decreasede0
- Value
- 9 g kg −1e0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring side‐banded P treatments increased grain yield by an average of 467 kg ha −1 and decreased grain moisture content by 9 g kg −1 compared to the unfertilized control.”
t0“corn”
Claim · model-written summary
Side-banded phosphorus at planting was agronomically superior to fall deep-banding.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- agronomically superiore0
- Direction
- superiore0
- Comparator
- precision fall deep‐bandinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“side‐banded P at planting was agronomically superior to precision fall deep‐banding.”
t0“corn”
Claim · model-written summary
Strip tillage had no agronomic penalty relative to conventional tillage.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- strip‐tillagee0
- Outcome
- agronomic penaltye0
- Direction
- no agronomic penaltye0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no agronomic penalty for corn grown with strip‐tillage, compared to conventional tillage”
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