Abstract
15N differential method was adopted to study the influences of combining application of nitrogen, phosphorus and potassium on N loss from Oryza sativa plant tissue for two weeks under solution culture. The results showed that there were not significant changes in biomass for the two weeks with combining application of N, P, K, but N contents of leaves and roots were obviously different among the different NPK combinations treatments. N contents in leaves and roots with N treatments were markedly higher than the no N treatments, while 15N abundance was on the contrary. It meant that the N absorption was increased and the absorbed 15N at early stage was diluted at the same time with N treatments. Meanwhile, NH4+-N contents of leaves with N treatments were higher than that of no N treatments, which showed that the N level was related with NH4+-N contents. N loss rates of rice plant were between 15.18% and 34.35% under the combining application of N, P and K. Combining application of the arbitrary two of N, P and K could reduce the N loss rates of rice plants, increase the activity of GOT, and decrease the membrane permeability of leaves. The N loss rate and the membrane permeability was the lowest, and the activity of GOT was the highest in the normal nutrition treatment (NPK).
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Claims 12
Claim · model-written summary
Combined N, P and K application did not significantly change rice biomass over two weeks.
- Taxon
- Rice Plant
Oryza sativat0 - Treatment
- combining application of N, P, Ke0
- Outcome
- biomasse0
- Direction
- not significant changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e0“there were not significant changes in biomass for the two weeks with combining application of N, P, K”
Claim · model-written summary
N treatments markedly increased N contents of rice leaves and roots compared with no N treatments.
- Taxon
- Rice PlantOryza sativat0
- Organ / stage
- leaves and rootse1
- Treatment
- N treatmentse1
- Outcome
- N contentse1
- Direction
- markedly highere1
- Comparator
- no N treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e1“N contents in leaves and roots with N treatments were markedly higher than the no N treatments, while 15N abundance was on the contrary”
Claim · model-written summary
N treatments lowered 15N abundance in rice compared with no N treatments.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- N treatmentse1
- Outcome
- 15N abundancee1
- Direction
- lowerinferrede1
- Comparator
- no N treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e1“N contents in leaves and roots with N treatments were markedly higher than the no N treatments, while 15N abundance was on the contrary”
Claim · model-written summary
N treatments increased NH4+-N contents in rice leaves compared with no N treatments.
- Taxon
- Rice PlantOryza sativat0
- Organ / stage
- leavese2
- Treatment
- N treatmentse2
- Outcome
- NH4+-N contentse2
- Direction
- highere2
- Comparator
- no N treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e2“NH4+-N contents of leaves with N treatments were higher than that of no N treatments”
Claim · model-written summary
The N level was associated with NH4+-N contents in rice.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- N levele3
- Outcome
- NH4+-N contentse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e3“the N level was related with NH4+-N contents”
Claim · model-written summary
N loss rates of rice plants ranged from 15.18% to 34.35% under combined N, P and K application.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- combining application of N, P and Ke4
- Outcome
- N loss ratese4
- Value
- 15.18% and 34.35%e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e4“N loss rates of rice plant were between 15.18% and 34.35% under the combining application of N, P and K”
Claim · model-written summary
Combining application of any two of N, P and K reduced N loss rates of rice plants.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- Combining application of the arbitrary two of N, P and Ke5
- Outcome
- N loss ratese5
- Direction
- reducee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e5“Combining application of the arbitrary two of N, P and K could reduce the N loss rates of rice plants, increase the activity of GOT, and decrease the membrane permeability of leaves”
Claim · model-written summary
Combining application of any two of N, P and K increased GOT activity in rice leaves.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- Combining application of the arbitrary two of N, P and Ke5
- Outcome
- activity of GOTe5
- Direction
- increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e5“Combining application of the arbitrary two of N, P and K could reduce the N loss rates of rice plants, increase the activity of GOT, and decrease the membrane permeability of leaves”
Claim · model-written summary
Combining application of any two of N, P and K decreased membrane permeability of rice leaves.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- Combining application of the arbitrary two of N, P and Ke5
- Outcome
- membrane permeability of leavese5
- Direction
- decreasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e5“Combining application of the arbitrary two of N, P and K could reduce the N loss rates of rice plants, increase the activity of GOT, and decrease the membrane permeability of leaves”
Claim · model-written summary
The normal nutrition treatment (NPK) had the lowest N loss rate in rice.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- normal nutrition treatment (NPK)e6
- Outcome
- N loss ratee6
- Direction
- loweste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e6“The N loss rate and the membrane permeability was the lowest, and the activity of GOT was the highest in the normal nutrition treatment (NPK)”
Claim · model-written summary
The normal nutrition treatment (NPK) had the lowest membrane permeability of rice leaves.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- normal nutrition treatment (NPK)e6
- Outcome
- membrane permeabilitye6
- Direction
- loweste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e6“The N loss rate and the membrane permeability was the lowest, and the activity of GOT was the highest in the normal nutrition treatment (NPK)”
Claim · model-written summary
The normal nutrition treatment (NPK) had the highest GOT activity in rice.
- Taxon
- Rice PlantOryza sativat0
- Treatment
- normal nutrition treatment (NPK)e6
- Outcome
- activity of GOTe6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effects of Combining Application of Nitrogen, Phosphorus and Potassium on Nitrogen Loss from Rice Plant Tissue”
e6“The N loss rate and the membrane permeability was the lowest, and the activity of GOT was the highest in the normal nutrition treatment (NPK)”
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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.