Abstract
The continuous cotton ( Gossypium hirsutum L.) culture practices of the Mississippi Delta tend to deplete soil organic matter and maximize soil losses. Conversely, rice ( Oryza sativa L.) production in the Mississippi Delta produces considerable amounts of dry matter which offers the possibility of increases in soil organic matter and reduction of soil erosion during the winter. Experiments were conducted over 4‐yr, 1984 to 1987, at the Delta Branch Experiment Station, Stoneville, MS, on a mixed Bosket (fine‐loamy, mixed, thermic Mollic Hapludalf) and Beulah (coarse‐loamy, mixed, thermic Typic Dystrochrepts) very fine sandy loam to evaluate the effects of rice and cotton rotation schemes on cotton yield, growth, and soil parameters in subsequent years. In 1986, penetrometer data revealed increased soil compaction in plots previously grown to rice for 2 yr prior to cotton when compared with continuous cotton. These differences in soil compaction were not found in 1987. When compared with continuous cotton, cotton heights in 1986 were reduced following 2 yr of rice. In 1987, seed cotton yields following two cycles of a 1:1 rotation with rice were slightly lower than continuous cotton. In 1987 soil test Ca was lower in rice plots following a 1:1 rice‐cotton rotation than continuous cotton. Results indicated that continuous cotton was of equal productivity with rice and cotton rotations.
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Claims 6
Claim · model-written summary
In 1986, soil compaction was increased in plots previously grown to rice for 2 yr before cotton compared with continuous cotton.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- previously grown to rice for 2 yre0
- Outcome
- soil compactione0
- Direction
- increasede0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1986, penetrometer data revealed increased soil compaction in plots previously grown to rice for 2 yr prior to cotton when compared with continuous cotton”
Claim · model-written summary
The differences in soil compaction between rice-preceded and continuous cotton plots were not found in 1987.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Ricet0
- Outcome
- soil compactione1
- Direction
- not founde1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Following Rice”
e1“These differences in soil compaction were not found in 1987”
Claim · model-written summary
Cotton heights in 1986 were reduced following 2 yr of rice compared with continuous cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 2 yr of ricee0
- Outcome
- cotton heightse0
- Direction
- reducede0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When compared with continuous cotton, cotton heights in 1986 were reduced following 2 yr of rice”
Claim · model-written summary
In 1987, seed cotton yields following two cycles of a 1:1 rotation with rice were slightly lower than continuous cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- two cycles of a 1:1 rotation with ricee0
- Outcome
- seed cotton yieldse0
- Direction
- slightly lowere0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1987, seed cotton yields following two cycles of a 1:1 rotation with rice were slightly lower than continuous cotton”
Claim · model-written summary
In 1987, soil test Ca was lower in rice plots following a 1:1 rice-cotton rotation than in continuous cotton.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 1:1 rice‐cotton rotatione0
- Outcome
- soil test Cae0
- Direction
- lowere0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1987 soil test Ca was lower in rice plots following a 1:1 rice‐cotton rotation than continuous cotton”
Claim · model-written summary
The authors concluded that continuous cotton was of equal productivity to rice and cotton rotations.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- rice and cotton rotationse0
- Outcome
- productivitye0
- Direction
- equale0
- Comparator
- continuous cottone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results indicated that continuous cotton was of equal productivity with rice and cotton rotations”
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