Abstract
Experiment was conducted with strawberry cultivated in protected conditions for studying effects of some potential fertilizing methods on enhancing ammonium in culture.Results showed that the soil ammonium N concentration in green-house was prevalently low,and the ratio of NH4+-N/NO3--N was lower than 1 ∶5.The ammonium N concentration could reached 26 mg.kg-1 and increased by 160% compared with CK;the ratio of NH4+-N/NO3--N reached at 0.16 and increased by 23% after the ammonium N fertilizer spread application.Ammonium,nitrogen N concentration and the ratio of NH4+-N/NO3--N were hard to be stable,NH4+-N and NO3--N decreased to 16 mg.kg-1 and 76 mg.kg-1 after spreading fertilizer two months respectively.Humus acid sodium had high ability to absorb ammonium N,but no effect on nitrogen N.Ammonium N fertilizer applied with humus acid sodium decreased the ratio of NH4+-N NO3--N,and humus acid sodium had great ability to protect fertilizer from leaching losses.Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.Bag controlled-release fertilizer and ammonium fertilizer applied with humus acid sodium treatments increased greenhouse strawberry yield.Bag controlled-release fertilizer treatment was better than ammonium fer-tilizer applied with humus acid sodium treatment and the yield reached at 1 577 kg per 667 m2,but ammonium fertilizer ap-plied with humus acid sodium treatment got better prophase yield which reached at 620 kg per 667 m2.
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Claims 19
Claim · model-written summary
Greenhouse soil ammonium N was prevalently low.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Outcome
- soil ammonium N concentratione0
- Direction
- lowe0
- Setting
- green-housee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“the soil ammonium N concentration in green-house was prevalently low,and the ratio of NH4+-N/NO3--N was lower than 1 ∶5”
t0“strawberry”
Claim · model-written summary
The greenhouse soil NH4+-N/NO3--N ratio was below 1:5.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- ratio of NH4+-N/NO3--Ne0
- Direction
- lowere0
- Value
- 1 ∶5e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soil ammonium N concentration in green-house was prevalently low,and the ratio of NH4+-N/NO3--N was lower than 1 ∶5”
t0“strawberry”
Claim · model-written summary
Spread ammonium fertilizer increased ammonium N concentration to 26 mg.kg-1 by 160%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ammonium N fertilizer spread applicatione0
- Outcome
- ammonium N concentratione0
- Direction
- increasede0
- Value
- 160%e0
- Qualifier
- 26 mg.kg-1e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ammonium N concentration could reached 26 mg.kg-1 and increased by 160% compared with CK;the ratio of NH4+-N/NO3--N reached at 0.16 and increased by 23% after the ammonium N fertilizer spread application.”
t0“strawberry”
Claim · model-written summary
Spread ammonium fertilizer increased ratio of NH4+-N/NO3--N to 0.16 by 23%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ammonium N fertilizer spread applicatione0
- Outcome
- ratio of NH4+-N/NO3--Ne0
- Direction
- increasede0
- Value
- 23%e0
- Qualifier
- 0.16e0
- Comparator
- CKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ammonium N concentration could reached 26 mg.kg-1 and increased by 160% compared with CK;the ratio of NH4+-N/NO3--N reached at 0.16 and increased by 23% after the ammonium N fertilizer spread application.”
t0“strawberry”
Claim · model-written summary
Two months after spreading fertilizer, NH4+-N decreased to 16 mg.kg-1.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- NH4+-Ne0
- Direction
- decreasede0
- Value
- 16 mg.kg-1e0
- Qualifier
- after spreading fertilizer two monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH4+-N and NO3--N decreased to 16 mg.kg-1 and 76 mg.kg-1 after spreading fertilizer two months respectively.”
t0“strawberry”
Claim · model-written summary
Two months after spreading fertilizer, NO3--N decreased to 76 mg.kg-1.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- NO3--Ne0
- Direction
- decreasede0
- Value
- 76 mg.kg-1e0
- Qualifier
- after spreading fertilizer two monthse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NH4+-N and NO3--N decreased to 16 mg.kg-1 and 76 mg.kg-1 after spreading fertilizer two months respectively.”
t0“strawberry”
Claim · model-written summary
Humus acid sodium absorbed ammonium N strongly.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Humus acid sodiume0
- Outcome
- ability to absorb ammonium Ne0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Humus acid sodium had high ability to absorb ammonium N,but no effect on nitrogen N.”
t0“strawberry”
Claim · model-written summary
Humus acid sodium had no effect on nitrogen N.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Humus acid sodiume0
- Outcome
- nitrogen Ne0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Humus acid sodium had high ability to absorb ammonium N,but no effect on nitrogen N.”
t0“strawberry”
Claim · model-written summary
Ammonium fertilizer with humus acid sodium decreased the NH4+-N NO3--N ratio.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Ammonium N fertilizer applied with humus acid sodiume0
- Outcome
- ratio of NH4+-N NO3--Ne0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium N fertilizer applied with humus acid sodium decreased the ratio of NH4+-N NO3--N,and humus acid sodium had great ability to protect fertilizer from leaching losses.”
t0“strawberry”
Claim · model-written summary
Humus acid sodium protected fertilizer from leaching loss.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- humus acid sodiume0
- Outcome
- protect fertilizer from leaching lossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ammonium N fertilizer applied with humus acid sodium decreased the ratio of NH4+-N NO3--N,and humus acid sodium had great ability to protect fertilizer from leaching losses.”
t0“strawberry”
Claim · model-written summary
Bag controlled-release fertilizer increased ammonium N concentration.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Bag controlled-release fertilizere0
- Outcome
- ammonium N concentratione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.”
t0“strawberry”
Claim · model-written summary
Bag controlled-release fertilizer increased ratio of NH4+-N/NO3--N.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Bag controlled-release fertilizere0
- Outcome
- ratio of NH4+-N/NO3--Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.”
t0“strawberry”
Claim · model-written summary
Bag controlled-release fertilizer decreased nitrogen N concentration.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Bag controlled-release fertilizere0
- Outcome
- nitrogen N concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.”
t0“strawberry”
Claim · model-written summary
NH4+-N remained steady at 18 mg.kg-1 after bag fertilizer application.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- NH4+-Ne0
- Direction
- kept steadilye0
- Value
- 18 mg.kg-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.”
t0“strawberry”
Claim · model-written summary
NO3--N remained steady at 80 mg.kg-1 after bag fertilizer application.
- Taxon
- strawberryFragaria ×ananassat0
- Outcome
- NO3--Ne0
- Direction
- kept steadilye0
- Value
- 80 mg.kg-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer increased ammonium N concentration and the ratio of NH4+-N/NO3--N but decreased nitrogen N concentration,and NH4+-N and NO3--N concentration kept steadily at 18 mg.kg-1 and 80 mg.kg-1 after fertilizer was applied.”
t0“strawberry”
Claim · model-written summary
Bag controlled-release fertilizer increased greenhouse strawberry yield.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- Bag controlled-release fertilizere0
- Outcome
- yielde0
- Direction
- increasede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer and ammonium fertilizer applied with humus acid sodium treatments increased greenhouse strawberry yield.”
t0“strawberry”
Claim · model-written summary
ammonium fertilizer applied with humus acid sodium increased greenhouse strawberry yield.
- Taxon
- strawberryFragaria ×ananassae0
- Treatment
- ammonium fertilizer applied with humus acid sodiume0
- Outcome
- yielde0
- Direction
- increasede0
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer and ammonium fertilizer applied with humus acid sodium treatments increased greenhouse strawberry yield.”
t0“strawberry”
Claim · model-written summary
Bag controlled-release fertilizer gave the better total yield, 1 577 kg per 667 m2.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- Bag controlled-release fertilizer treatmente0
- Outcome
- yielde0
- Direction
- bettere0
- Value
- 1 577 kg per 667 m2e0
- Comparator
- ammonium fer-tilizer applied with humus acid sodium treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer treatment was better than ammonium fer-tilizer applied with humus acid sodium treatment and the yield reached at 1 577 kg per 667 m2,but ammonium fertilizer ap-plied with humus acid sodium treatment got better prophase yield which reached at 620 kg per 667 m2.”
t0“strawberry”
Claim · model-written summary
Ammonium fertilizer with humus acid sodium gave better prophase yield, 620 kg per 667 m2.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- ammonium fertilizer ap-plied with humus acid sodium treatmente0
- Outcome
- prophase yielde0
- Direction
- bettere0
- Value
- 620 kg per 667 m2e0
- Comparator
- Bag controlled-release fertilizer treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bag controlled-release fertilizer treatment was better than ammonium fer-tilizer applied with humus acid sodium treatment and the yield reached at 1 577 kg per 667 m2,but ammonium fertilizer ap-plied with humus acid sodium treatment got better prophase yield which reached at 620 kg per 667 m2.”
t0“strawberry”
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