Abstract
To study the impact of nitrogen deposition on rice growth and yield,early rice Yueyou 463 seedlings were transplanted in April,2009 under field conditions(hydromorphic paddy soil).Ammonium nitrate solution was sprayed on the seedlings every 10 days at five N doses [N0(0 g/(m2·a)),N1(3 g/(m2·a)),N2(6 g/(m2·a)),N3(12 g/(m2·a)) and N4(24 g/(m2·a))] during growing season with three replicates for each treatments.Biomass,yield and nutrient concentration were monitored at harvest time.The results indicated that N addition increased N,P,K and Ca contents in leaves,roots and non-fully filled grains but decreased Mg concentration in shoots and roots.N concentration in leaves and roots was positively correlated with P,K and Ca but negatively correlated with Mg.The present simulated N deposition was found to increase the growth and yield of rice,but increase the percentage of non-fully filled grains and decrease 1 000-grain weight.
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Claims 8
Claim · model-written summary
Nitrogen addition increased N, P, K and Ca contents in rice leaves, roots and non-fully filled grains.
- Taxon
- Rice
Oryza sativat0 - Organ / stage
- leaves,roots and non-fully filled grainse0
- Treatment
- N additione0
- Outcome
- N,P,K and Ca contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N addition increased N,P,K and Ca contents in leaves,roots and non-fully filled grains”
t0“Rice(Oryza sativa L.)”
Claim · model-written summary
Nitrogen addition decreased Mg concentration in rice shoots and roots.
- Taxon
- RiceOryza sativat0
- Organ / stage
- shoots and rootse0
- Treatment
- N additione0
- Outcome
- Mg concentratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N addition increased N,P,K and Ca contents in leaves,roots and non-fully filled grains but decreased Mg concentration in shoots and roots”
t0“Rice(Oryza sativa L.)”
Claim · model-written summary
Rice leaf and root N concentration was positively correlated with P, K and Ca.
- Taxon
- RiceOryza sativat0
- Organ / stage
- leaves and rootse0
- Compound
- P,K and Cae0
- Outcome
- N concentratione0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N concentration in leaves and roots was positively correlated with P,K and Ca but negatively correlated with Mg”
t0“Rice(Oryza sativa L.)”
Claim · model-written summary
Rice leaf and root N concentration was negatively correlated with Mg.
- Taxon
- RiceOryza sativat0
- Organ / stage
- leaves and rootse0
- Compound
- Mge0
- Outcome
- N concentratione0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N concentration in leaves and roots was positively correlated with P,K and Ca but negatively correlated with Mg”
t0“Rice(Oryza sativa L.)”
Claim · model-written summary
Simulated N deposition increased rice growth.
- Taxon
- riceOryza sativae0
- Treatment
- simulated N depositione0
- Outcome
- growthe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The present simulated N deposition was found to increase the growth and yield of rice”
Claim · model-written summary
Simulated N deposition increased rice yield.
- Taxon
- riceOryza sativae0
- Treatment
- simulated N depositione0
- Outcome
- yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The present simulated N deposition was found to increase the growth and yield of rice”
Claim · model-written summary
Simulated N deposition increased the percentage of non-fully filled rice grains.
- Taxon
- riceOryza sativae0
- Treatment
- simulated N depositione0
- Outcome
- percentage of non-fully filled grainse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The present simulated N deposition was found to increase the growth and yield of rice,but increase the percentage of non-fully filled grains and decrease 1 000-grain weight”
Claim · model-written summary
Simulated N deposition decreased rice 1 000-grain weight.
- Taxon
- riceOryza sativae0
- Treatment
- simulated N depositione0
- Outcome
- 1 000-grain weighte0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The present simulated N deposition was found to increase the growth and yield of rice,but increase the percentage of non-fully filled grains and decrease 1 000-grain weight”
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See all 464 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.