Abstract
Abstract A series of experiments was conducted to compare the effects of subsoil acidity on cotton ( Gossypium hirsutum L.) and peanuts ( Arachis hypogaea L.). A strongly acid (pH 5.0) Norfolk sandy loam subsoil reduced cotton yield by one‐third in a field experiment but had no detrimental effect on peanut yield. Cotton roots were unable to penetrate the most acid subsoil in this experiment, whereas peanut roots appeared to be undaunted by the acidity. Growth‐chamber experiments with acid Norfolk and Greenville subsoil materials showed cotton root‐growth to be almost completely inhibited by soils that had no apparent detrimental effect on peanut roots Nutrient‐solution experiments showed that cotton roots created a more acid root environment than did peanuts; these experiments also showed that peanuts had a greater propensity for preferential absorption of lower valency ions to the exclusion of higher valency ions. Either or both of these phenomena could explain the greater tolerance of peanuts to low soil pH and its associated high soil solution aluminum.
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Claims 9
Claim · model-written summary
Strongly acid Norfolk subsoil reduced cotton yield.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- strongly acid (pH 5.0) Norfolk sandy loam subsoile0
- Outcome
- cotton yielde0
- Direction
- reducede0
- Value
- one‐thirde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A strongly acid (pH 5.0) Norfolk sandy loam subsoil reduced cotton yield by one‐third in a field experiment but had no detrimental effect on peanut yield.”
Claim · model-written summary
Strongly acid Norfolk subsoil no detrimental effect peanut yield.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- strongly acid (pH 5.0) Norfolk sandy loam subsoile0
- Outcome
- peanut yielde0
- Direction
- no detrimental effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A strongly acid (pH 5.0) Norfolk sandy loam subsoil reduced cotton yield by one‐third in a field experiment but had no detrimental effect on peanut yield.”
Claim · model-written summary
Cotton roots were unable to penetrate in the most acid subsoil.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- most acid subsoile0
- Outcome
- Cotton rootse0
- Direction
- unable to penetratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton roots were unable to penetrate the most acid subsoil in this experiment, whereas peanut roots appeared to be undaunted by the acidity.”
Claim · model-written summary
peanut roots were undaunted in the most acid subsoil.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- most acid subsoile0
- Outcome
- peanut rootse0
- Direction
- undauntede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton roots were unable to penetrate the most acid subsoil in this experiment, whereas peanut roots appeared to be undaunted by the acidity.”
Claim · model-written summary
Acid Norfolk and Greenville soils almost completely inhibited cotton root‐growth in growth chambers.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- acid Norfolk and Greenville subsoil materialse0
- Outcome
- cotton root‐growthe0
- Direction
- almost completely inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth‐chamber experiments with acid Norfolk and Greenville subsoil materials showed cotton root‐growth to be almost completely inhibited by soils that had no apparent detrimental effect on peanut roots”
Claim · model-written summary
Acid Norfolk and Greenville soils no apparent detrimental effect peanut roots in growth chambers.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- acid Norfolk and Greenville subsoil materialse0
- Outcome
- peanut rootse0
- Direction
- no apparent detrimental effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Growth‐chamber experiments with acid Norfolk and Greenville subsoil materials showed cotton root‐growth to be almost completely inhibited by soils that had no apparent detrimental effect on peanut roots”
Claim · model-written summary
Cotton roots created a more acid root environment than peanut roots.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- rootse0
- Outcome
- root environmente0
- Direction
- more acide0
- Comparator
- peanutse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient‐solution experiments showed that cotton roots created a more acid root environment than did peanuts; these experiments also showed that peanuts had a greater propensity for preferential absorption of lower valency ions to the exclusion of higher valency ions.”
Claim · model-written summary
Peanuts showed greater preferential absorption of lower valency ions over higher valency ions.
- Taxon
- peanutsArachis hypogaeae0
- Outcome
- preferential absorption of lower valency ionse0
- Direction
- greatere0
- Comparator
- higher valency ionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nutrient‐solution experiments showed that cotton roots created a more acid root environment than did peanuts; these experiments also showed that peanuts had a greater propensity for preferential absorption of lower valency ions to the exclusion of higher valency ions.”
Claim · model-written summary
Acidification of the root environment and preferential ion absorption could explain peanut tolerance of low soil pH.
- Taxon
- peanutsArachis hypogaeae0
- Outcome
- greater tolerance of peanuts to low soil pHe0
- Qualifier
- preferential absorption of lower valency ionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Either or both of these phenomena could explain the greater tolerance of peanuts to low soil pH and its associated high soil solution aluminum.”
e1“cotton roots created a more acid root environment than did peanuts; these experiments also showed that peanuts had a greater propensity for preferential absorption of lower valency ions”
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