Abstract
Experiment was conducted with 6-year-old vines of wine cultivar Cabernet Sauvignon grown in alkaline soil and with a long relative cold winter climate.Three fertilization depths(20,40 and 60 cm) were used for studying their effects on the leaf contents of N,P,K,yield and fruit quality.The contents of N,P,K in leaves were examined by regular leaf analysis.The results showed that the N content was higher in leaf blade than in leafstalk.N content in leaf was gradually reduced along with the vine growth.N,P,K fertilized at 20 to 40 cm soil layers significantly increased N content in leaf.But N content in leafstalk was less affected by N fertilization depth and growing season.P content was higher in leafstalk than in leaf blade.Less change of P content was noticed in leaf along with vine growth.However,N,P,K fertilized at 40 to 60 cm soil layers significantly promoted P in both leaf blade and leafstalk.K content in leafstalk was much higher than in leaf blade.No obvious influence was noticed by fertilizing depth.But K content in leafstalk was significantly increased due to applied K fertilizer in late growing season.The highest yield was obtained from the 20 to 40 cm depth fertilization.Increasing trends of sugar accumulation and sugar/acid were observed in grapevine fertilizers applied under 20 to 40 cm.It is recommended the feasible fertilization depth for Cabernet Sauvignon cultivar in this area is 20 to 40 cm which could improve the mineral nutrient utilization rate,fruit quality and increase production.
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Claims 14
Claim · model-written summary
Leaf blade nitrogen content exceeded leafstalk nitrogen content.
VitisOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N content was higher in leaf blade than in leafstalk”
t0“grapevine”
Claim · model-written summary
Leaf nitrogen content declined during vine growth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N content in leaf was gradually reduced along with the vine growth”
t0“grapevine”
Claim · model-written summary
Fertilization at 20 to 40 cm significantly increased leaf nitrogen content.
- Treatment
- N,P,K fertilized at 20 to 40 cm soil layerse0
- Outcome
- N content in leafe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N,P,K fertilized at 20 to 40 cm soil layers significantly increased N content in leaf”
t0“grapevine”
Claim · model-written summary
Leafstalk nitrogen was less affected by fertilization depth and season.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N content in leafstalk was less affected by N fertilization depth and growing season”
t0“grapevine”
Claim · model-written summary
Leafstalk phosphorus exceeded leaf blade phosphorus.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P content was higher in leafstalk than in leaf blade”
t0“grapevine”
Claim · model-written summary
Leaf phosphorus changed little during vine growth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Less change of P content was noticed in leaf along with vine growth”
t0“grapevine”
Claim · model-written summary
Fertilization at 40 to 60 cm significantly promoted phosphorus in leaf blade and leafstalk.
- Treatment
- N,P,K fertilized at 40 to 60 cm soil layerse0
- Outcome
- P in both leaf blade and leafstalke0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N,P,K fertilized at 40 to 60 cm soil layers significantly promoted P in both leaf blade and leafstalk”
t0“grapevine”
Claim · model-written summary
Leafstalk potassium content greatly exceeded leaf blade potassium content.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K content in leafstalk was much higher than in leaf blade”
t0“grapevine”
Claim · model-written summary
Fertilization depth had no obvious influence on potassium content.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No obvious influence was noticed by fertilizing depth”
t0“Influence of fertilization depth on NPK content in leaves,yield and fruit quality of grapevine”
Claim · model-written summary
Potassium fertilizer significantly increased late-season leafstalk potassium content.
- Treatment
- applied K fertilizere0
- Outcome
- K content in leafstalke0
- Direction
- increasede0
- Qualifier
- late growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K content in leafstalk was significantly increased due to applied K fertilizer in late growing season”
t0“grapevine”
Claim · model-written summary
Fertilization at 20 to 40 cm gave the highest yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield was obtained from the 20 to 40 cm depth fertilization”
t0“grapevine”
Claim · model-written summary
Fertilization at 20 to 40 cm increased sugar accumulation.
- Treatment
- fertilizers applied under 20 to 40 cme0
- Outcome
- sugar accumulatione0
- Direction
- Increasing trendse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing trends of sugar accumulation and sugar/acid were observed in grapevine fertilizers applied under 20 to 40 cm”
Claim · model-written summary
Fertilization at 20 to 40 cm increased the sugar to acid ratio.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing trends of sugar accumulation and sugar/acid were observed in grapevine fertilizers applied under 20 to 40 cm”
Claim · model-written summary
The authors recommended fertilization at 20 to 40 cm for Cabernet Sauvignon in this area.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It is recommended the feasible fertilization depth for Cabernet Sauvignon cultivar in this area is 20 to 40 cm which could improve the mineral nutrient utilization rate,fruit quality and increase production”
t0“grapevine”
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See all 53 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.