Abstract
The regulation effect of selenium fertilizer and selenium and cobalt combining fertilizer on the growth of Medicago sativa L.was studied with leaf-spraying way in different growing stage.The results showed that:(1)Leaf-spraying of selenium fertilizer and selenium and cobalt combining fertilizer could enhance stem/leaf ratio and decrease FW/DW ratio;(2)Selenium and cobalt combining fertilizer could promote the increment of aboveground biomass in the whole durations,however selenium fertilizer only promoted aboveground biomass in vegetative growing periods;(3)Selenium fertilizer and selenium and cobalt combining fertilizer could increase underground biomass in 10～20cm soil layer significantly which favored to promote the absorption and utilization of nutrients and water in top soil by alfalfa;Furthermore,selenium and cobalt combining fertilizer had stronger capability to promote the growth of underground biomass than selenium fertilizer which increased underground biomass by 18.9% in 10～20cm soil layer and by 7.5% in 10～20cm soil layer compared to control group respectively;(4)Selenium fertilizer and selenium and cobalt combining fertilizer affected the growth of underground biomass in 30～50cm soil layer obviously and decreased drought-relief ability of alfalfa.In this respect,selenium and cobalt combining fertilizer had more effects than selenium fertilizer.
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Claims 13
Claim · model-written summary
Selenium spray increased the stem to leaf ratio.
- Taxon
- Medicago sativa L.
Medicago sativat0 - Treatment
- selenium fertilizere0
- Outcome
- stem/leaf ratioe0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf-spraying of selenium fertilizer and selenium and cobalt combining fertilizer could enhance stem/leaf ratio”
t0“Medicago sativa L.”
Claim · model-written summary
Combined selenium and cobalt spray increased the stem to leaf ratio.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- stem/leaf ratioe0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf-spraying of selenium fertilizer and selenium and cobalt combining fertilizer could enhance stem/leaf ratio”
t0“Medicago sativa L.”
Claim · model-written summary
Selenium spray decreased the fresh to dry weight ratio.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium fertilizere0
- Outcome
- FW/DW ratioe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf-spraying of selenium fertilizer and selenium and cobalt combining fertilizer could enhance stem/leaf ratio and decrease FW/DW ratio”
t0“Medicago sativa L.”
Claim · model-written summary
Combined selenium and cobalt spray decreased the fresh to dry weight ratio.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- FW/DW ratioe0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf-spraying of selenium fertilizer and selenium and cobalt combining fertilizer could enhance stem/leaf ratio and decrease FW/DW ratio”
t0“Medicago sativa L.”
Claim · model-written summary
Combined selenium and cobalt promoted aboveground biomass throughout growth.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Selenium and cobalt combining fertilizere0
- Outcome
- aboveground biomasse0
- Direction
- incremente0
- Qualifier
- in the whole durationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium and cobalt combining fertilizer could promote the increment of aboveground biomass in the whole durations”
t0“Medicago sativa L.”
Claim · model-written summary
Selenium alone promoted aboveground biomass only during vegetative growth.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium fertilizere0
- Outcome
- aboveground biomasse0
- Direction
- promotede0
- Qualifier
- vegetative growing periodse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer only promoted aboveground biomass in vegetative growing periods”
t0“Medicago sativa L.”
Claim · model-written summary
Selenium fertilizer significantly increased underground biomass in the 10 to 20 cm soil layer by 7.5% relative to control.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Selenium fertilizere0
- Outcome
- underground biomasse0
- Direction
- increasee0
- Value
- 7.5%e1
- Qualifier
- 10～20cm soil layere0
- Comparator
- control groupe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer could increase underground biomass in 10～20cm soil layer significantly”
e1“increased underground biomass by 18.9% in 10～20cm soil layer and by 7.5% in 10～20cm soil layer compared to control group respectively”
t0“Medicago sativa L.”
Claim · model-written summary
Combined selenium and cobalt significantly increased underground biomass in the 10 to 20 cm soil layer by 18.9% relative to control.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- underground biomasse0
- Direction
- increasee0
- Value
- 18.9%e1
- Qualifier
- 10～20cm soil layere0
- Comparator
- control groupe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer could increase underground biomass in 10～20cm soil layer significantly”
e1“increased underground biomass by 18.9% in 10～20cm soil layer and by 7.5% in 10～20cm soil layer compared to control group respectively”
t0“Medicago sativa L.”
Claim · model-written summary
Combined fertilizer stimulated underground biomass more than selenium alone.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- growth of underground biomasse0
- Direction
- strongere0
- Comparator
- selenium fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium and cobalt combining fertilizer had stronger capability to promote the growth of underground biomass than selenium fertilizer”
t0“Medicago sativa L.”
Claim · model-written summary
Selenium fertilizer affected underground biomass growth in the 30 to 50 cm soil layer.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- Selenium fertilizere0
- Outcome
- growth of underground biomasse0
- Qualifier
- 30～50cm soil layere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer affected the growth of underground biomass in 30～50cm soil layer obviously”
t0“Medicago sativa L.”
Claim · model-written summary
Combined selenium and cobalt affected underground biomass growth in the 30 to 50 cm soil layer.
- Taxon
- Medicago sativa L.Medicago sativat0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- growth of underground biomasse0
- Qualifier
- 30～50cm soil layere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer affected the growth of underground biomass in 30～50cm soil layer obviously”
t0“Medicago sativa L.”
Claim · model-written summary
Selenium fertilizer decreased alfalfa drought relief ability.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium fertilizere0
- Outcome
- drought-relief abilitye0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer affected the growth of underground biomass in 30～50cm soil layer obviously and decreased drought-relief ability of alfalfa”
Claim · model-written summary
Combined selenium and cobalt fertilizer decreased alfalfa drought relief ability, with a greater effect than selenium alone.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- selenium and cobalt combining fertilizere0
- Outcome
- drought-relief abilitye0
- Direction
- decreasede0
- Comparator
- Selenium fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium and cobalt combining fertilizer affected the growth of underground biomass in 30～50cm soil layer obviously and decreased drought-relief ability of alfalfa.In this respect,selenium and cobalt combining fertilizer had more effects than selenium fertilizer.”
The same questions in other papers
selenium atom · growth · Medicago sativa (alfalfa)Results differ
7 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- negative
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See all 13 papers →cobalt atom · growth · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
3 papers more in this group
See all 7 papers →fertilization · growth · Medicago sativa (alfalfa)Results differ
70 papers in the same direction as this paper · 17 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
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See all 89 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.