Abstract
The variety of the contents of N, P, K and photo-biological characters in a bud and two leaves tea tree new shoots were determined to investigate the effects of different fertilization ways, i.e., single or combined N, P, K fertilizer. The regression equations of net photosynthetic rate (Pn) of tea tree in spring, summer and autumn were set up by stepwise regression analysis. The results showed that fertilization ways significantly affected the contents of N, P, K in new shoot. In the same fertilization ways, the contents of N, P in the new shoot was less in summer and autumn than in spring, but the content of K was in contrast. Combined application of N, P and K fertilizer improved Pn of the tea trees in spring. Single application of P fertilizer inhibited the Pn of the tea trees in summer and autumn, while single application of N fertilizer significantly improved it. In the same fertilization ways, the Pn of the tea trees in summer and autumn was higher than in spring. The stomatal conductance (g(s)) and transpiration rate (T(r)) had positive correlations to P, in summer and autumn. Regression and correlation analysis showed that the physiological factors affecting Pn of the tea trees varied with seasons, and the common factors were the Ci and the content of P. Ci had some subduction to Pn, and it was improved by the content of phosphorus.
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Claims 12
Claim · model-written summary
Fertilization ways significantly affected N, P and K contents in tea new shoots.
- Taxon
- tea tree
Camellia sinensise1 - Treatment
- fertilization wayse0
- Outcome
- contents of N, P, K in new shoote0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization ways significantly affected the contents of N, P, K in new shoot”
e1“tea tree new shoots”
Claim · model-written summary
Tea new shoot N and P contents were lower in summer and autumn than spring under the same fertilization.
- Taxon
- tea treeCamellia sinensise1
- Outcome
- contents of N, P in the new shoote0
- Direction
- lesse0
- Qualifier
- summer and autumne0
- Comparator
- springe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of N, P in the new shoot was less in summer and autumn than in spring”
e1“tea tree new shoots”
Claim · model-written summary
Tea shoot K content showed the opposite seasonal pattern to N and P.
- Taxon
- tea treeCamellia sinensise1
- Outcome
- content of Ke0
- Qualifier
- summer and autumne0
- Comparator
- springe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the contents of N, P in the new shoot was less in summer and autumn than in spring, but the content of K was in contrast”
e1“tea tree new shoots”
Claim · model-written summary
Combined N, P and K fertilizer improved spring tea net photosynthetic rate.
- Taxon
- tea treesCamellia sinensise0
- Treatment
- Combined application of N, P and K fertilizere0
- Outcome
- Pne0
- Direction
- improvede0
- Qualifier
- springe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of N, P and K fertilizer improved Pn of the tea trees in spring”
Claim · model-written summary
P fertilizer alone inhibited tea net photosynthetic rate in summer and autumn.
- Taxon
- tea treesCamellia sinensise0
- Treatment
- Single application of P fertilizere0
- Outcome
- Pne0
- Direction
- inhibitede0
- Qualifier
- summer and autumne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Single application of P fertilizer inhibited the Pn of the tea trees in summer and autumn”
Claim · model-written summary
N fertilizer alone significantly improved tea net photosynthetic rate in summer and autumn.
- Taxon
- tea treesCamellia sinensise1
- Treatment
- single application of N fertilizere0
- Outcome
- Pne1
- Direction
- improvede0
- Qualifier
- summer and autumne1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“single application of N fertilizer significantly improved it”
e1“inhibited the Pn of the tea trees in summer and autumn”
Claim · model-written summary
Tea net photosynthetic rate was higher in summer and autumn than spring under the same fertilization.
- Taxon
- tea treesCamellia sinensise0
- Outcome
- Pne0
- Direction
- highere0
- Qualifier
- summer and autumne0
- Comparator
- springe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Pn of the tea trees in summer and autumn was higher than in spring”
Claim · model-written summary
Tea stomatal conductance and transpiration rate correlated positively with P in summer and autumn.
- Taxon
- tea treeCamellia sinensise1
- Compound
- Pe0
- Outcome
- stomatal conductance (g(s)) and transpiration rate (T(r))e0
- Direction
- positivee0
- Qualifier
- summer and autumne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stomatal conductance (g(s)) and transpiration rate (T(r)) had positive correlations to P, in summer and autumn”
e1“tea tree new shoots”
Claim · model-written summary
Physiological factors associated with tea photosynthetic rate varied by season.
- Taxon
- tea treesCamellia sinensise0
- Outcome
- Pne0
- Qualifier
- physiological factors affecting Pne0
- Setting
- seasonse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the physiological factors affecting Pn of the tea trees varied with seasons”
Claim · model-written summary
Ci and P content were common factors associated with tea net photosynthetic rate.
- Taxon
- tea treesCamellia sinensise1
- Compound
- content of Pe0
- Outcome
- Pne1
- Qualifier
- Cie0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the common factors were the Ci and the content of P”
e1“physiological factors affecting Pn of the tea trees”
Claim · model-written summary
Ci reduced tea net photosynthetic rate.
- Taxon
- tea treesCamellia sinensise1
- Compound
- Cie0
- Outcome
- Pne0
- Direction
- subductione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ci had some subduction to Pn”
e1“the Pn of the tea trees in summer and autumn was higher than in spring”
Claim · model-written summary
Phosphorus content improved tea net photosynthetic rate.
- Taxon
- tea treesCamellia sinensise1
- Compound
- content of phosphoruse0
- Outcome
- Pne1
- Direction
- improvede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was improved by the content of phosphorus”
e1“physiological factors affecting Pn of the tea trees”
The same questions in other papers
nitrogen · physiology: photosynthesis · Camellia sinensis (black tea)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
phosphorus · physiology: photosynthesis · Camellia sinensis (black tea)Results agree
1 paper in the same direction as this paper
- positive
fertilization · physiology: photosynthesis · Camellia sinensis (black tea)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.