Abstract
Under the conditions of application of selenium and sulfur fertilizers in potted plants, the effect of selenium and sulfur on the content of chlorophyll and day matter in alfalfa was studied. Test was done with single application of sulfur or selenium fertilizer and interaction of Se and S to find out the best fertilizing program and to provide a scientific method of fertilization to quality forage. The results showed that: When fertilized S was 80 mg·kg-1,the content of sulfur was the maximum in plant, but increasing the sulfur fertilizer application rate, sulfur content decreased. Sulfur level was 40 mg·kg-1,the accumulation of dry matter was maximum, the change of chlorophyll content in plants was not significantly with the effect of sulfur levels. Se dosage had no obvious effect on dry matter, but chlorophyll content in plant was increased with increasing selenium, chlorophyll content was the maximum in alfalfa with selenium content of 3.0 mg·kg-1. The interaction of selenium and sulfur showed that, excess or deficiency of sulfur level were both go against the accumulation of selenium in plants, when fertilizing the plants S 20 mg·kg-1 + Se 1.5 mg·kg-1, selenium content was the highest, with the increase of sulfur level, the accumulation of selenium decreased. Fertilization for S 40 mg·kg-1 + Se 1.5 mg·kg-1 dry matter accumulation was the maximum, its comprehensive performance was the best.
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Claims 11
Claim · model-written summary
Sulfur content in alfalfa was highest at a fertilized sulfur level of 80 mg/kg.
- Taxon
- Alfalfa
Medicago sativat0 - Treatment
- fertilized S was 80 mg·kg-1e1
- Outcome
- content of sulfure1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“When fertilized S was 80 mg·kg-1,the content of sulfur was the maximum in plant”
Claim · model-written summary
Increasing the sulfur fertilizer rate decreased sulfur content in alfalfa.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- increasing the sulfur fertilizer application ratee1
- Outcome
- sulfur contente1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“increasing the sulfur fertilizer application rate, sulfur content decreased”
Claim · model-written summary
Sulfur at 40 mg/kg gave the maximum dry matter accumulation in alfalfa.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- Sulfur level was 40 mg·kg-1e1
- Outcome
- accumulation of dry mattere1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“Sulfur level was 40 mg·kg-1,the accumulation of dry matter was maximum”
Claim · model-written summary
Sulfur levels had no significant effect on chlorophyll content in alfalfa.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- sulfur levelse1
- Outcome
- chlorophyll contente1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“the change of chlorophyll content in plants was not significantly with the effect of sulfur levels”
Claim · model-written summary
Selenium dosage had no obvious effect on alfalfa dry matter.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- Se dosagee1
- Outcome
- dry mattere1
- Direction
- no obvious effecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“Se dosage had no obvious effect on dry matter”
Claim · model-written summary
Chlorophyll content in alfalfa increased with increasing selenium.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- increasing seleniume1
- Outcome
- chlorophyll contente1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“chlorophyll content in plant was increased with increasing selenium”
Claim · model-written summary
Chlorophyll content in alfalfa was maximal at a selenium content of 3.0 mg/kg.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- selenium content of 3.0 mg·kg-1e1
- Outcome
- chlorophyll contente1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“chlorophyll content was the maximum in alfalfa with selenium content of 3.0 mg·kg-1”
Claim · model-written summary
Selenium content in alfalfa was highest with S 20 mg/kg plus Se 1.5 mg/kg fertilization.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- S 20 mg·kg-1 + Se 1.5 mg·kg-1e1
- Outcome
- selenium contente1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“when fertilizing the plants S 20 mg·kg-1 + Se 1.5 mg·kg-1, selenium content was the highest”
Claim · model-written summary
Accumulation of selenium in alfalfa decreased as sulfur level increased.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- increase of sulfur levele1
- Outcome
- accumulation of seleniume1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“with the increase of sulfur level, the accumulation of selenium decreased”
Claim · model-written summary
Dry matter accumulation in alfalfa was maximal with S 40 mg/kg plus Se 1.5 mg/kg.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- S 40 mg·kg-1 + Se 1.5 mg·kg-1e1
- Outcome
- dry matter accumulatione1
- Direction
- maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“Fertilization for S 40 mg·kg-1 + Se 1.5 mg·kg-1 dry matter accumulation was the maximum”
Claim · model-written summary
The authors recommend S 40 mg/kg plus Se 1.5 mg/kg as the best fertilizing program for alfalfa.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- S 40 mg·kg-1 + Se 1.5 mg·kg-1e1
- Outcome
- comprehensive performancee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Sulfur and Selenium on the Yield of Alfalfa”
e1“Fertilization for S 40 mg·kg-1 + Se 1.5 mg·kg-1 dry matter accumulation was the maximum”
e2“its comprehensive performance was the best”
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See all 5 papers →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.