We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Corn response to strip‐tillage and phosphorus fertilization in the Northern Great Plains.
- Authors
Rogalsky, Magdalena; Tiessen, Kevin H. D.; Flaten, Don; Lawley, Yvonne; Tenuta, Mario; Heard, John
- 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 P2O5 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. Core Ideas: Corn growth, grain yield, and grain moisture responses to strip‐tillage and conventional tillage were similar.Spring side‐banded P fertilizer increased or advanced corn growth, increased grain yield, and reduced grain moisture.Corn growth and yield response to fall deep‐banded P fertilizer was not as consistent as for spring side‐banded P.Corn response to P fertilization generally declined as the growing season progressed.Strip‐tillage shows potential for maintaining corn productivity and protecting soil from erosion in this region.
- Subjects
MANITOBA; GREAT Plains; TILLAGE; PHOSPHATE fertilizers; CORN growth; CONSERVATION tillage; SOIL conservation; CORN farming; CORN
- Publication
Agronomy Journal, 2024, Vol 116, Issue 3, p1551
- ISSN
0002-1962
- Publication type
Article
- DOI
10.1002/agj2.21556