Abstract
The aim of the present paper is to study the effect of different concentrations of Cd on the contents of N,P,K,Zn,Cd in soybean grains that are now cultivated in two kinds of typical Hunan soil,i.e.the red soil and the alluvial soil so as to improve the profitability of reasonable use of the local soil resources slightly polluted by cadmium.The results of our experiments can be shown as follows:(1)Cd stress at lower concentrations(0.25 mg/kg)helps to increase the height and biomass of soybean plants whereas depressed effects can be found at high Cd concentrations with the two kinds of tested soil.(2)Cd treatment at different concentrations may lead to the decrease of N content in the soybean grains,which has been found enhanced with the increase of the Cd concentrations.Furthermore,Cd and Phosphorus presence in the grains reveals a synergistic effect at lower Cd concentrations(0.25-0.50 mg/kg),and an antagonistic effect at the Cd increased concentrations.At the same time,the presence of Cd and potassium in the soybean grains indicates an antagonistic effect at low Cd concentrations.While an antagonistic effect is exhibited in the plant leaves,Cd and zinc presence in grains reveals a synergistic effect.(3)The correlation analysis between Cd concentrations in grains and soils prove that the Cd critical value in the red and alluvial soils is 0.157 mg/kg and 0.769 mg/kg respectively when the Cd content in the grains is below 0.2 mg/kg.
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Claims 9
Claim · model-written summary
Lower Cd concentrations (0.25 mg/kg) increased the height and biomass of soybean plants in both tested soils.
- Taxon
- soybeans
Glycine maxt0 - Treatment
- Cd stress at lower concentrations(0.25 mg/kg)e0
- Outcome
- height and biomasse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“Cd stress at lower concentrations(0.25 mg/kg)helps to increase the height and biomass of soybean plants”
Claim · model-written summary
High Cd concentrations depressed soybean growth in both tested soils.
- Taxon
- soybeansGlycine maxt0
- Treatment
- high Cd concentrationse0
- Outcome
- depressed effectse0
- Direction
- depressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“whereas depressed effects can be found at high Cd concentrations with the two kinds of tested soil”
Claim · model-written summary
Cd treatment at different concentrations may decrease the N content of soybean grains.
- Taxon
- soybeansGlycine maxt0
- Treatment
- Cd treatment at different concentrationse0
- Outcome
- N content in the soybean grainse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“Cd treatment at different concentrations may lead to the decrease of N content in the soybean grains”
Claim · model-written summary
Cd and phosphorus in grains showed a synergistic effect at lower Cd concentrations (0.25-0.50 mg/kg).
- Taxon
- soybeansGlycine maxt0
- Treatment
- lower Cd concentrations(0.25-0.50 mg/kg)e0
- Outcome
- Cd and Phosphorus presence in the grainse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“Cd and Phosphorus presence in the grains reveals a synergistic effect at lower Cd concentrations(0.25-0.50 mg/kg)”
Claim · model-written summary
Cd and phosphorus in grains showed an antagonistic effect at increased Cd concentrations.
- Taxon
- soybeansGlycine maxt0
- Treatment
- the Cd increased concentrationse0
- Outcome
- antagonistic effecte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“an antagonistic effect at the Cd increased concentrations”
Claim · model-written summary
Cd and potassium in soybean grains showed an antagonistic effect at low Cd concentrations.
- Taxon
- soybeansGlycine maxt0
- Treatment
- low Cd concentrationse0
- Outcome
- presence of Cd and potassium in the soybean grainse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“the presence of Cd and potassium in the soybean grains indicates an antagonistic effect at low Cd concentrations”
Claim · model-written summary
Cd and zinc in grains showed a synergistic effect.
- Taxon
- soybeansGlycine maxt0
- Outcome
- Cd and zinc presence in grainse0
- Setting
- grainse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“Cd and zinc presence in grains reveals a synergistic effect”
Claim · model-written summary
The Cd critical value in the red soil is 0.157 mg/kg when the Cd content in the grains is below 0.2 mg/kg.
- Taxon
- soybeansGlycine maxt0
- Outcome
- Cd critical valuee0
- Value
- 0.157 mg/kge0
- Qualifier
- when the Cd content in the grains is below 0.2 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“the Cd critical value in the red and alluvial soils is 0.157 mg/kg and 0.769 mg/kg respectively when the Cd content in the grains is below 0.2 mg/kg”
Claim · model-written summary
The Cd critical value in the alluvial soil is 0.769 mg/kg when the Cd content in the grains is below 0.2 mg/kg.
- Taxon
- soybeansGlycine maxt0
- Outcome
- Cd critical valuee0
- Value
- 0.769 mg/kge0
- Qualifier
- when the Cd content in the grains is below 0.2 mg/kge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of cadmium stress on growth of soybeans”
e0“the Cd critical value in the red and alluvial soils is 0.157 mg/kg and 0.769 mg/kg respectively when the Cd content in the grains is below 0.2 mg/kg”
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