Abstract
Abstract Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States. This has encouraged use of reduced and no‐tillage systems, but burning of the wheat straw prior to planting soybean has also become common. A 2‐yr field study was initiated on a Greenville sandy clay loam (Rhodic Paleudult) in Georgia to evaluate effects of tillage and residue management practices on selected soil properties and plant growth parameters. Main experimental blocks were split into burned and nonburned wheat straw, and tillage treatments were randomly applied in strips. Tillage treatments were notillage, disk tillage (disk), and moldboard plow (plow). Soil temperature, water content, and bulk density, as well as plant population, height, dry weight, root mass, and seed yield were determined. Notillage with residue resulted in soil surface temperatures 5 to 8°C lower than temperatures measured on bare soil. Also, water content of the upper 0.10 m of soil in the no‐tillage nonburned treatment was as much as 30 to 40% higher than other treatments. Bulk densities in excess of 1.7 Mg/m 3 occurred under disk and no‐tillage at a depth of 0.15 to 0.25 m. This compaction reduced water extraction and plant growth in those treatments as compared to the plowed soil. These results indicate that, for sandy Ultisols with poorly developed structure, tillage pan amelioration may be necessary in the fall to ensure better soil conditions for no‐tillage in the spring, as no‐tillage tends to preserve the initial soil physical condition. Burning residues did not significantly influence crop growth but did influence soil properties adversely. It is apparent that burning residues is a matter of convenience for ease of planting but is of no agronomic benefit.
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Claims 9
Claim · model-written summary
No-tillage with residue lowered soil surface temperature by 5 to 8°C relative to bare soil in Georgia.
- Taxon
- Glycine max
Glycine maxe0 - Treatment
- Notillage with residuee2
- Outcome
- soil surface temperaturese2
- Direction
- lowere2
- Value
- 5 to 8°Ce2
- Comparator
- bare soile2
- Setting
- Georgiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e1“A 2‐yr field study was initiated on a Greenville sandy clay loam (Rhodic Paleudult) in Georgia”
e2“Notillage with residue resulted in soil surface temperatures 5 to 8°C lower than temperatures measured on bare soil”
Claim · model-written summary
Soil water content in the upper 0.10 m was up to 30 to 40% higher in the no-tillage nonburned treatment than in other treatments.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- no‐tillage nonburnede3
- Outcome
- water content of the upper 0.10 m of soile3
- Direction
- highere3
- Value
- 30 to 40%e3
- Comparator
- other treatmentse3
- Setting
- Georgiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e1“A 2‐yr field study was initiated on a Greenville sandy clay loam (Rhodic Paleudult) in Georgia”
e3“water content of the upper 0.10 m of soil in the no‐tillage nonburned treatment was as much as 30 to 40% higher than other treatments”
Claim · model-written summary
Bulk densities in excess of 1.7 Mg/m3 occurred under disk and no-tillage at a depth of 0.15 to 0.25 m.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- diske4
- Outcome
- bulk densitiese4
- Value
- 1.7 Mg/m 3e4
- Qualifier
- at a depth of 0.15 to 0.25 me4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e4“Bulk densities in excess of 1.7 Mg/m 3 occurred under disk and no‐tillage at a depth of 0.15 to 0.25 m”
Claim · model-written summary
Compaction reduced water extraction and plant growth in the compacted treatments compared with the plowed soil.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- compactione5
- Outcome
- water extraction and plant growthe5
- Direction
- reducede5
- Comparator
- plowed soile5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e5“This compaction reduced water extraction and plant growth in those treatments as compared to the plowed soil”
Claim · model-written summary
Burning residues did not significantly influence crop growth.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- Burning residuese7
- Outcome
- crop growthe7
- Direction
- did not significantly influencee7
- Setting
- Georgiae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e1“A 2‐yr field study was initiated on a Greenville sandy clay loam (Rhodic Paleudult) in Georgia”
e7“Burning residues did not significantly influence crop growth but did influence soil properties adversely. It is apparent that burning residues is a matter of convenience for ease of planting but is of no agronomic benefit”
Claim · model-written summary
Burning residues adversely influenced soil properties.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- Burning residuese7
- Outcome
- soil propertiese7
- Direction
- adverselye7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e7“Burning residues did not significantly influence crop growth but did influence soil properties adversely. It is apparent that burning residues is a matter of convenience for ease of planting but is of no agronomic benefit”
Claim · model-written summary
Burning residues is of no agronomic benefit, although it eases planting.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- burning residuese7
- Outcome
- agronomic benefite7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e7“Burning residues did not significantly influence crop growth but did influence soil properties adversely. It is apparent that burning residues is a matter of convenience for ease of planting but is of no agronomic benefit”
Claim · model-written summary
Tillage pan amelioration may be necessary in the fall for better soil conditions for no-tillage in the spring on sandy Ultisols.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- tillage pan amelioratione6
- Outcome
- soil conditionse6
- Setting
- sandy Ultisolse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e6“These results indicate that, for sandy Ultisols with poorly developed structure, tillage pan amelioration may be necessary in the fall to ensure better soil conditions for no‐tillage in the spring, as no‐tillage tends to preserve the initial soil physical condition”
Claim · model-written summary
No-tillage tends to preserve the initial soil physical condition.
- Taxon
- Glycine maxGlycine maxe0
- Treatment
- no‐tillagee6
- Outcome
- initial soil physical conditione6
- Direction
- preservee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doublecropping soybean [ Glycine max (L.) Merrill] and wheat ( Triticum aestivum L.) has become widespread in the southeastern United States”
e6“These results indicate that, for sandy Ultisols with poorly developed structure, tillage pan amelioration may be necessary in the fall to ensure better soil conditions for no‐tillage in the spring, as no‐tillage tends to preserve the initial soil physical condition”
The same questions in other papers
tillage · growth · Glycine max (soybean)Results differ
31 papers in the same direction as this paper · 52 in the opposite direction
- positive
- no effect
- positive
80 papers more in this group
See all 84 papers →fire · growth · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.