Abstract
Potassium (K) is the most important element for fruit quality improvement. This study aimed at determining the best K fertilizer type that can promote grape growth and nutrient uptake. Specifically, four types of K fertilizers (complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate) were applied to grapevines grown in plastic pots, and then their effects on grape growth and nutrient uptake were explored. Results showed that the complex fertilizer and potassium nitrate treatments increased the biomass of the grapevine plants, whereas the other fertilizers had no significant effects on the biomass. Only the potassium nitrate treatment increased the contents of photosynthetic pigments in grapevine leaves. The complex fertilizer and potassium nitrate treatments increased the total N content in the grapevine plants to some extent, whereas the other fertilizer treatments decreased the total N content to some extent. It was also evident that all four K fertilizers increased the total P and K contents in the grapevine plants. Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively, and increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively. In addition, correlation and grey relational analyses showed that the rootstock stem total N content, rootstock root biomass, and soil alkali-hydrolyzable N concentration were the top three indicators most closely associated with the scion total N content, whereas the rootstock root total P content, soil available P concentration, and rootstock stem total P content were the top three indicators most closely associated with the scion total P content. Additionally, the rootstock root total K content, soil available K concentration, and rootstock root total P content were the top three indicators most closely associated with the scion total K content. Overall, the different K fertilizers can all promote the uptake of P and K by grapevine plants, and the potassium dihydrogen phosphate fertilizer is the best choice.
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Claims 20
Claim · model-written summary
Complex fertilizer increased grapevine biomass.
VitisNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the complex fertilizer and potassium nitrate treatments increased the biomass of the grapevine plants”
Claim · model-written summary
Potassium nitrate increased grapevine biomass.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the complex fertilizer and potassium nitrate treatments increased the biomass of the grapevine plants”
Claim · model-written summary
Potassium sulfate and potassium dihydrogen phosphate had no significant biomass effect.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas the other fertilizers had no significant effects on the biomass.”
t0“Grapevine”
e1“potassium sulfate, and potassium dihydrogen phosphate)”
Claim · model-written summary
Potassium nitrate increased grapevine leaf photosynthetic pigments.
- Organ / stage
- leavese0
- Treatment
- potassium nitratee0
- Outcome
- contents of photosynthetic pigmentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Only the potassium nitrate treatment increased the contents of photosynthetic pigments in grapevine leaves.”
Claim · model-written summary
Complex fertilizer and potassium nitrate increased total grapevine nitrogen to some extent.
- Treatment
- complex fertilizer and potassium nitrate treatmentse0
- Outcome
- total N contente0
- Direction
- increasede0
- Qualifier
- to some extente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The complex fertilizer and potassium nitrate treatments increased the total N content in the grapevine plants to some extent”
Claim · model-written summary
The other fertilizers decreased total grapevine nitrogen to some extent.
- Treatment
- other fertilizer treatmentse0
- Outcome
- total N contente0
- Direction
- decreasede0
- Qualifier
- to some extente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas the other fertilizer treatments decreased the total N content to some extent.”
t0“Grapevine”
Claim · model-written summary
All four potassium fertilizers increased grapevine total phosphorus content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all four K fertilizers increased the total P and K contents in the grapevine plants.”
Claim · model-written summary
All four potassium fertilizers increased grapevine total potassium content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all four K fertilizers increased the total P and K contents in the grapevine plants.”
Claim · model-written summary
Complex fertilizer increased scion phosphorus 20.18% versus control.
- Treatment
- complex fertilizere0
- Outcome
- scion total P contente0
- Direction
- increasede0
- Value
- 20.18%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively”
t0“Grapevine”
Claim · model-written summary
Potassium nitrate increased scion phosphorus 9.77% versus control.
- Treatment
- potassium nitratee0
- Outcome
- scion total P contente0
- Direction
- increasede0
- Value
- 9.77%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively”
t0“Grapevine”
Claim · model-written summary
Potassium sulfate increased scion phosphorus 12.52% versus control.
- Treatment
- potassium sulfatee0
- Outcome
- scion total P contente0
- Direction
- increasede0
- Value
- 12.52%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively”
t0“Grapevine”
Claim · model-written summary
Potassium dihydrogen phosphate increased scion phosphorus 30.81% versus control.
- Treatment
- potassium dihydrogen phosphatee0
- Outcome
- scion total P contente0
- Direction
- increasede0
- Value
- 30.81%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments increased the scion total P content by 20.18%, 9.77%, 12.52%, and 30.81%, respectively”
t0“Grapevine”
Claim · model-written summary
Complex fertilizer increased scion potassium 15.37% versus control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively.”
t0“Grapevine”
e1“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments”
Claim · model-written summary
Potassium nitrate increased scion potassium 8.41% versus control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively.”
t0“Grapevine”
e1“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments”
Claim · model-written summary
Potassium sulfate increased scion potassium 20.15% versus control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively.”
t0“Grapevine”
e1“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments”
Claim · model-written summary
Potassium dihydrogen phosphate increased scion potassium 26.48% versus control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased the scion total K content by 15.37%, 8.41%, 20.15%, and 26.48%, respectively.”
t0“Grapevine”
e1“Compared to the control, the complex fertilizer, potassium nitrate, potassium sulfate, and potassium dihydrogen phosphate treatments”
Claim · model-written summary
Rootstock stem nitrogen, rootstock root biomass and soil alkali-hydrolyzable nitrogen were most associated with scion nitrogen.
- Organ / stage
- rootstock steme0
- Outcome
- scion total N contente0
- Qualifier
- rootstock root biomass, and soil alkali-hydrolyzable N concentratione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rootstock stem total N content, rootstock root biomass, and soil alkali-hydrolyzable N concentration were the top three indicators most closely associated with the scion total N content”
t0“Grapevine”
Claim · model-written summary
Rootstock root phosphorus, soil available phosphorus and rootstock stem phosphorus were most associated with scion phosphorus.
- Organ / stage
- rootstock roote0
- Outcome
- scion total P contente0
- Qualifier
- soil available P concentration, and rootstock stem total P contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rootstock root total P content, soil available P concentration, and rootstock stem total P content were the top three indicators most closely associated with the scion total P content”
t0“Grapevine”
Claim · model-written summary
Rootstock root potassium, soil available potassium and rootstock root phosphorus were most associated with scion potassium.
- Organ / stage
- rootstock roote0
- Outcome
- scion total K contente0
- Qualifier
- soil available K concentration, and rootstock root total P contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rootstock root total K content, soil available K concentration, and rootstock root total P content were the top three indicators most closely associated with the scion total K content”
t0“Grapevine”
Claim · model-written summary
The authors judged potassium dihydrogen phosphate the best fertilizer choice.
- Outcome
- potassium dihydrogen phosphate fertilizer is the best choicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the potassium dihydrogen phosphate fertilizer is the best choice.”
t0“Grapevine”
The same questions in other papers
potassium nitrate · growth · VitisPositive and negative results
1 in the opposite direction
- negative
potassium sulfate · growth · VitisPositive and negative results
2 in the opposite direction
- positive
- positive
potassium sulfate · nutrient: content · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
fertilization · nutrient: content · VitisPositive and negative results
42 papers in the same direction as this paper · 4 in the opposite direction
- no effect
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43 papers more in this group
See all 47 papers →fertilization · growth · VitisPositive and negative results
42 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
47 papers more in this group
See all 51 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.