Abstract
Impacts of selenium fertilizer(Na2SeO3·5H2O) and selenium-cobalt combining fertilizer(Na2SeO3·5H2O + CoSO4·7H2O) on the underground and aboveground growth of alfalfa(Medicago sativa L.) were studied by leaf-spraying of two kinds of fertilizers during different growth periods of alfalfa in Yellow River bottomland of Zhengzhou,Henan Province.The results show that selenium fertilizer(57 g·hm-2) and selenium-cobalt combining fertilizer(408 g·hm-2) applied one time per 15 day for successive 4 times after the plant height reached to 15 cm significantly promoted the net photosynthetic rate and dry matter production rate of during ramification to budding stage(P0.05).Single application of selenium fertilizer increased the effective photosynthetic leaf area and decreased plant respiration loss.Selenium fertilizer and selenium-cobalt combining fertilizer promoted the growth of root system and root nodule of alfalfa in depth of 0~20 cm soil and favored the nutrients and water utilization of top soil but went against the growth of root system in deep soil under 30 cm and decreased the drought hardiness of alfalfa.
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Claims 8
Claim · model-written summary
selenium fertilizer(57 g·hm-2) promoted photosynthesis and dry matter production during ramification to budding.
- Taxon
- alfalfa(Medicago sativa L.)
Medicago sativat0 - Organ / stage
- ramification to budding stagee0
- Treatment
- selenium fertilizer(57 g·hm-2)e0
- Outcome
- net photosynthetic rate and dry matter production ratee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer(57 g·hm-2) and selenium-cobalt combining fertilizer(408 g·hm-2) applied one time per 15 day for successive 4 times after the plant height reached to 15 cm significantly promoted the net photosynthetic rate and dry matter production rate of during ramification to budding stage(P0.05).”
t0“alfalfa(Medicago sativa L.)”
Claim · model-written summary
selenium-cobalt combining fertilizer(408 g·hm-2) promoted photosynthesis and dry matter production during ramification to budding.
- Taxon
- alfalfa(Medicago sativa L.)Medicago sativat0
- Organ / stage
- ramification to budding stagee0
- Treatment
- selenium-cobalt combining fertilizer(408 g·hm-2)e0
- Outcome
- net photosynthetic rate and dry matter production ratee0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selenium fertilizer(57 g·hm-2) and selenium-cobalt combining fertilizer(408 g·hm-2) applied one time per 15 day for successive 4 times after the plant height reached to 15 cm significantly promoted the net photosynthetic rate and dry matter production rate of during ramification to budding stage(P0.05).”
t0“alfalfa(Medicago sativa L.)”
Claim · model-written summary
Selenium fertilizer increased effective photosynthetic leaf area.
- Taxon
- alfalfa(Medicago sativa L.)Medicago sativat0
- Treatment
- selenium fertilizere0
- Outcome
- effective photosynthetic leaf areae0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Single application of selenium fertilizer increased the effective photosynthetic leaf area and decreased plant respiration loss.”
t0“alfalfa(Medicago sativa L.)”
Claim · model-written summary
Selenium fertilizer decreased plant respiration loss.
- Taxon
- alfalfa(Medicago sativa L.)Medicago sativat0
- Treatment
- selenium fertilizere0
- Outcome
- plant respiration losse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Single application of selenium fertilizer increased the effective photosynthetic leaf area and decreased plant respiration loss.”
t0“alfalfa(Medicago sativa L.)”
Claim · model-written summary
Both fertilizer treatments promoted growth of root system and root nodule.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium fertilizer and selenium-cobalt combining fertilizere0
- Outcome
- growth of root system and root nodulee0
- Direction
- promotede0
- Qualifier
- 0~20 cm soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium-cobalt combining fertilizer promoted the growth of root system and root nodule of alfalfa in depth of 0~20 cm soil and favored the nutrients and water utilization of top soil but went against the growth of root system in deep soil under 30 cm and decreased the drought hardiness of alfalfa.”
Claim · model-written summary
Both fertilizer treatments favored nutrients and water utilization of top soil.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium fertilizer and selenium-cobalt combining fertilizere0
- Outcome
- nutrients and water utilization of top soile0
- Direction
- favorede0
- Qualifier
- top soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium-cobalt combining fertilizer promoted the growth of root system and root nodule of alfalfa in depth of 0~20 cm soil and favored the nutrients and water utilization of top soil but went against the growth of root system in deep soil under 30 cm and decreased the drought hardiness of alfalfa.”
Claim · model-written summary
Both fertilizer treatments went against growth of root system in deep soil.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium fertilizer and selenium-cobalt combining fertilizere0
- Outcome
- growth of root system in deep soile0
- Direction
- went againste0
- Qualifier
- under 30 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium-cobalt combining fertilizer promoted the growth of root system and root nodule of alfalfa in depth of 0~20 cm soil and favored the nutrients and water utilization of top soil but went against the growth of root system in deep soil under 30 cm and decreased the drought hardiness of alfalfa.”
Claim · model-written summary
Both fertilizer treatments decreased drought hardiness of alfalfa.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- Selenium fertilizer and selenium-cobalt combining fertilizere0
- Outcome
- drought hardiness of alfalfae0
- Direction
- decreasede0
- Qualifier
- alfalfae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium fertilizer and selenium-cobalt combining fertilizer promoted the growth of root system and root nodule of alfalfa in depth of 0~20 cm soil and favored the nutrients and water utilization of top soil but went against the growth of root system in deep soil under 30 cm and decreased the drought hardiness of alfalfa.”
The same questions in other papers
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8 of 11 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.