Abstract
A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR). About 10mm of normal water (pH 6.0), 5mm of SAR followed by 5mm of normal water, and 10mm of SAR were applied 24 times at the two-day intervals. The results obtained are summarized as follows : 1. Visible symptoms were dark brown, red brown, or grey brown leaf spots, reduced leaf size, or some times wrinked leaves in both crops. The visible symptoms started after the third application of SAR. The degree of damages was greater as the amounts and the number of times of SAR application increased. 2. Chlorophyll contents of SAR applied leaves decreased as the amounts of SAR application increased. 3. As the amounts of SAR increased, length, diameter, and fresh weight of Chinese cabbage heads and radish roots decreased. 4. In both crops sulfur content increased, while calcium content decreased as the amounts of SAR increased. Contents of N, P, K, and Mg were not significnatly affected by the amounts of SAR. 5. SAR decreased soil pH and exchangeable cations (Ca, Mg, K), while increased soil sulfur content.
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Claims 9
Claim · model-written summary
Chlorophyll content of leaves decreased as the amount of simulated acid rain increased.
- Taxon
- Chinese cabbage and radish
Raphanus sativus
Brassica rapa subsp. pekinensise0 - Treatment
- simulated acid rain (SAR)e0
- Outcome
- Chlorophyll contentse2
- Direction
- decreasede2
- Comparator
- normal water (pH 6.0)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e1“About 10mm of normal water (pH 6.0), 5mm of SAR followed by 5mm of normal water, and 10mm of SAR were applied 24 times at the two-day intervals”
e2“Chlorophyll contents of SAR applied leaves decreased as the amounts of SAR application increased”
Claim · model-written summary
Length, diameter and fresh weight of heads and roots decreased as the amount of simulated acid rain increased.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Organ / stage
- Chinese cabbage heads and radish rootse3
- Treatment
- amounts of SARe3
- Outcome
- length, diameter, and fresh weighte3
- Direction
- decreasede3
- Comparator
- normal water (pH 6.0)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e1“About 10mm of normal water (pH 6.0), 5mm of SAR followed by 5mm of normal water, and 10mm of SAR were applied 24 times at the two-day intervals”
e3“As the amounts of SAR increased, length, diameter, and fresh weight of Chinese cabbage heads and radish roots decreased”
Claim · model-written summary
Sulfur content in both crops increased as the amount of simulated acid rain increased.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Treatment
- amounts of SARe4
- Outcome
- sulfur contente4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e4“In both crops sulfur content increased, while calcium content decreased as the amounts of SAR increased”
Claim · model-written summary
Calcium content in both crops decreased as the amount of simulated acid rain increased.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Treatment
- amounts of SARe4
- Outcome
- calcium contente4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e4“In both crops sulfur content increased, while calcium content decreased as the amounts of SAR increased”
Claim · model-written summary
Contents of N, P, K and Mg were not significantly affected by the amount of simulated acid rain.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Treatment
- amounts of SARe5
- Outcome
- Contents of N, P, K, and Mge5
- Direction
- not significnatly affectede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e5“Contents of N, P, K, and Mg were not significnatly affected by the amounts of SAR”
Claim · model-written summary
Simulated acid rain decreased soil pH and exchangeable cations.
Not reportedTaxonComparator
Verbatim
e6“SAR decreased soil pH and exchangeable cations (Ca, Mg, K), while increased soil sulfur content”
Claim · model-written summary
Simulated acid rain increased soil sulfur content.
Not reportedTaxonComparator
Verbatim
e6“SAR decreased soil pH and exchangeable cations (Ca, Mg, K), while increased soil sulfur content”
Claim · model-written summary
Visible leaf symptoms (dark brown spots, reduced leaf size) appeared in both crops after simulated acid rain, starting after the third application.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Treatment
- SARe1
- Outcome
- Visible symptomse7
- Qualifier
- started after the third applicatione1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e7“Visible symptoms were dark brown, red brown, or grey brown leaf spots, reduced leaf size, or some times wrinked leaves in both crops”
e1“The visible symptoms started after the third application of SAR”
Claim · model-written summary
The degree of damage was greater as the amount and number of simulated acid rain applications increased.
- Taxon
- Chinese cabbage and radishRaphanus sativusBrassica rapa subsp. pekinensise0
- Treatment
- SAR applicatione1
- Outcome
- degree of damagese1
- Direction
- greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A green house experiment was conducted to investigate the performance of Chinese cabbage and radish and changes in soil chemical properties after application of different amounts of simulated acid rain (SAR)”
e1“The degree of damages was greater as the amounts and the number of times of SAR application increased”
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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.