Abstract
Abstract Deep tillage of compacted soils can improve potato ( Solanum tuberosum L.) tuber yield and quality if no other production factors are limiting. We hypothesized that within‐row subsoiling and N placement would affect tuber yields and availability of plant nutrients. Potato (cv. Russet Burbank) was grown after winter wheat ( Triticum aestivum L.) in 1989 and after dry bean ( Phaseolus vulgaris L.) in 1990 on a furrow irrigated Portneuf silt loam (coarse‐silty, mixed, mesic Durixerollic Calciorthid). Fall tillage treatments (disking, chiseling, and moldboard plowing) were split with zone subsoiling after planting. Nitrogen was broadcast before planting or banded beside the seed piece at planting across all tillage combinations. We estimated plant nutrient status and uptake each year with whole‐plant and petiole samplings during tuber growth. Final tuber yield and quality were determined in early October. Fall tillage did not influence nutrient concentration and uptake, tuber yield, or quality. Zone subsoiling increased average plant dry weights 9%, total tuber yields 10% (4 Mg ha −1 ), and quality, and increased P uptake an average of 11.6% (1.8 kg P ha −1 ) without appreciably changing whole‐plant or petiole P concentrations. Banding N increased average plant dry weight 6.4%, total tuber yield 9%, and N uptake 28% compared with broadcast N. Petiole NO 3 ‐N, P, K, and Zn concentrations were higher where N was banded. There were no consistent zone subsoiling × N placement interactions. Higher nutrient applications may be required with zone subsoiling or to compensate for soil compaction problems.
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Claims 12
Claim · model-written summary
Fall tillage did not influence potato nutrient concentration, uptake, tuber yield or quality.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- Fall tillagee0
- Outcome
- nutrient concentration and uptake, tuber yield, or qualitye0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fall tillage did not influence nutrient concentration and uptake, tuber yield, or quality.”
t0“potato”
Claim · model-written summary
Zone subsoiling increased average plant dry weight by 9%.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Zone subsoilinge0
- Outcome
- average plant dry weightse0
- Direction
- increasede0
- Value
- 9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zone subsoiling increased average plant dry weights 9%, total tuber yields 10% (4 Mg ha −1 ), and quality, and increased P uptake an average of 11.6% (1.8 kg P ha −1 ) without appreciably changing whole‐plant or petiole P concentrations.”
t0“potato”
Claim · model-written summary
Zone subsoiling increased total tuber yield by 10%, or 4 Mg ha −1.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Zone subsoilinge0
- Outcome
- total tuber yieldse0
- Direction
- increasede0
- Value
- 10% (4 Mg ha −1 )e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zone subsoiling increased average plant dry weights 9%, total tuber yields 10% (4 Mg ha −1 ), and quality”
t0“potato”
Claim · model-written summary
Zone subsoiling increased tuber quality.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Zone subsoilinge0
- Outcome
- qualitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zone subsoiling increased average plant dry weights 9%, total tuber yields 10% (4 Mg ha −1 ), and quality”
t0“potato”
Claim · model-written summary
Zone subsoiling increased P uptake by 11.6%, or 1.8 kg P ha −1.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Zone subsoilingt1
- Outcome
- P uptakee0
- Direction
- increasede0
- Value
- 11.6% (1.8 kg P ha −1 )e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased P uptake an average of 11.6% (1.8 kg P ha −1 ) without appreciably changing whole‐plant or petiole P concentrations”
t0“potato”
t1“Zone subsoiling”
Claim · model-written summary
Zone subsoiling did not appreciably change whole-plant or petiole P concentrations.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Zone subsoilingt1
- Outcome
- whole‐plant or petiole P concentrationse0
- Direction
- without appreciably changinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without appreciably changing whole‐plant or petiole P concentrations”
t0“potato”
t1“Zone subsoiling”
Claim · model-written summary
Banded N increased average plant dry weight by 6.4% compared with broadcast N.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Banding Ne0
- Outcome
- average plant dry weighte0
- Direction
- increasede0
- Value
- 6.4%e0
- Comparator
- broadcast Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Banding N increased average plant dry weight 6.4%, total tuber yield 9%, and N uptake 28% compared with broadcast N.”
t0“potato”
Claim · model-written summary
Banded N increased tuber yield by 9% compared with broadcast N.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Banding Ne0
- Outcome
- total tuber yielde0
- Direction
- increasede0
- Value
- 9%e0
- Comparator
- broadcast Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Banding N increased average plant dry weight 6.4%, total tuber yield 9%, and N uptake 28% compared with broadcast N.”
t0“potato”
Claim · model-written summary
Banded N increased N uptake by 28% compared with broadcast N.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Banding Ne0
- Outcome
- N uptakee0
- Direction
- increasede0
- Value
- 28%e0
- Comparator
- broadcast Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Banding N increased average plant dry weight 6.4%, total tuber yield 9%, and N uptake 28% compared with broadcast N.”
t0“potato”
Claim · model-written summary
Banded N raised petiole nitrate-N, P, K and Zn concentrations.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- N was bandede0
- Outcome
- Petiole NO 3 ‐N, P, K, and Zn concentrationse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Petiole NO 3 ‐N, P, K, and Zn concentrations were higher where N was banded.”
t0“potato”
Claim · model-written summary
Zone subsoiling and N placement showed no consistent interaction.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- zone subsoilinge0
- Outcome
- zone subsoiling × N placement interactionse0
- Direction
- no consistente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no consistent zone subsoiling × N placement interactions.”
t0“potato”
Claim · model-written summary
Higher nutrient applications may be needed with zone subsoiling or to offset soil compaction.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- Higher nutrient applications may be required with zone subsoiling or to compensate for soil compaction problemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher nutrient applications may be required with zone subsoiling or to compensate for soil compaction problems.”
t0“potato”
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