Abstract
The effects of selenium fertilizer and selenium and cobalt mixed fertilizer on the forage yield and quality of alfalfa(Medicago sativa L.) were studied by leaf-spraying during growing durations in the soil and climate conditions of Yellow River bottomland in Henan Province.The results show that the selenium fertilizer and selenium and cobalt mixed fertilizer increased significantly the ratio of stem to leaf and decreased the ratio of fresh weight to dry weight;increased the dry matter content in alfalfa forage from shooting stage to florescence stage;increased the plant height of alfalfa from flowering stage to ripening stage.Selenium fertilizer promoted only the forage yield during vegetative periods;however selenium and cobalt mixed fertilizer promoted the forage yield during the whole growing durations.Moreover,selenium fertilizer and selenium and cobalt mixed fertilizer enhanced not only the contents of Se and Co of alfalfa hay significantly,but also the contents of 6 kinds of other trace elements(Fe,Mn,Cu,Zn,Mo,and B)obviously,especially that of Se and Mo.Selenium and cobalt mixed fertilizer increased the contents of crude protein,ash,and calcium and decreased the contents of water and crude fibre of alfalfa hay significantly in favor of good forage quality.
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Claims 11
Claim · model-written summary
Selenium fertilizer raised stem-to-leaf ratio.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- selenium fertilizere0
- Outcome
- ratio of stem to leafe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer and selenium and cobalt mixed fertilizer increased significantly the ratio of stem to leaf”
t0“alfalfa”
Claim · model-written summary
Selenium and cobalt mixed fertilizer raised stem-to-leaf ratio.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- selenium and cobalt mixed fertilizere0
- Outcome
- ratio of stem to leafe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer and selenium and cobalt mixed fertilizer increased significantly the ratio of stem to leaf”
t0“alfalfa”
Claim · model-written summary
Both fertilizers reduced fresh-to-dry weight ratio.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- selenium fertilizer and selenium and cobalt mixed fertilizere0
- Outcome
- ratio of fresh weight to dry weighte0
- 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 mixed fertilizer increased significantly the ratio of stem to leaf and decreased the ratio of fresh weight to dry weight”
t0“alfalfa”
Claim · model-written summary
Both fertilizers increased forage dry matter from shooting to florescence.
- Taxon
- alfalfaMedicago sativae0
- Organ / stage
- shooting stage to florescence stagee0
- Treatment
- selenium fertilizer and selenium and cobalt mixed fertilizere1
- Outcome
- dry matter contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the dry matter content in alfalfa forage from shooting stage to florescence stage”
e1“selenium fertilizer and selenium and cobalt mixed fertilizer increased significantly the ratio of stem to leaf”
Claim · model-written summary
Both fertilizers increased alfalfa height from flowering to ripening.
- Taxon
- alfalfaMedicago sativae0
- Organ / stage
- flowering stage to ripening stagee0
- Treatment
- selenium and cobalt fertilizerst0
- Outcome
- plant heighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the plant height of alfalfa from flowering stage to ripening stage.”
t0“selenium and cobalt fertilizers”
Claim · model-written summary
Selenium fertilizer promoted forage yield only during vegetative periods.
- Taxon
- alfalfaMedicago sativat0
- Organ / stage
- vegetative periodse0
- Treatment
- Selenium fertilizere0
- Outcome
- forage yielde0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer promoted only the forage yield during vegetative periods”
t0“alfalfa”
Claim · model-written summary
Mixed selenium and cobalt fertilizer promoted forage yield throughout growth.
- Taxon
- alfalfaMedicago sativat0
- Organ / stage
- whole growing durationse0
- Treatment
- selenium and cobalt mixed fertilizere0
- Outcome
- forage yielde0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium and cobalt mixed fertilizer promoted the forage yield during the whole growing durations.”
t0“alfalfa”
Claim · model-written summary
Both fertilizers significantly increased alfalfa hay selenium and cobalt contents.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- selenium fertilizer and selenium and cobalt mixed fertilizere0
- Outcome
- contents of Se and Co of alfalfa haye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer and selenium and cobalt mixed fertilizer enhanced not only the contents of Se and Co of alfalfa hay significantly”
Claim · model-written summary
Both fertilizers increased six other trace element contents, especially molybdenum.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- selenium and cobalt fertilizerst1
- Outcome
- contents of 6 kinds of other trace elements(Fe,Mn,Cu,Zn,Mo,and B)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of 6 kinds of other trace elements(Fe,Mn,Cu,Zn,Mo,and B)obviously,especially that of Se and Mo.”
t0“alfalfa”
t1“selenium and cobalt fertilizers”
Claim · model-written summary
Mixed fertilizer increased crude protein, ash and calcium content.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- Selenium and cobalt mixed fertilizere0
- Outcome
- contents of crude protein,ash,and calciume0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium and cobalt mixed fertilizer increased the contents of crude protein,ash,and calcium”
t0“alfalfa”
Claim · model-written summary
Mixed fertilizer significantly decreased water and crude fibre contents.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium and cobalt mixed fertilizert0
- Outcome
- contents of water and crude fibree0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased the contents of water and crude fibre of alfalfa hay significantly”
t0“Selenium and cobalt mixed fertilizer”
The same questions in other papers
selenium atom · quality: protein · Medicago sativa (alfalfa)Results differ
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- no effect
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13 papers in the same direction as this paper · 4 in the opposite direction
- negative
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See all 18 papers →cobalt atom · quality: protein · Medicago sativa (alfalfa)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
cobalt atom · nutrient: content · Medicago sativa (alfalfa)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
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selenium atom · quality: grain · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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1 paper more in this group
See all 5 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 →selenium atom · nutrient: content · Medicago sativa (alfalfa)Positive and negative results
12 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
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10 papers more in this group
See all 14 papers →8 of 17 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.