Abstract
The effects of application amounts of nitrogen,phosphate and potassium and planting density on yield and quality of rape cultivar,Huayouza 9,under the fixed N∶ P2O5 ∶ K2O ratio(1 ∶ 0.55 ∶ 0.80) conditions of different nitrogen levels(135,225 and 315 kg/ha) and planting densities(15×104,45×104 and 75×104 plant/ha).The results show that yields of rapeseed are increased with the increases of fertilizer and density,and the influences of fertilizer levels on the increased yield rates are more effective than those of the densities.The increases of densities under the low fertilizer level have significant effect on the increased yields.There are great differences on main economic characters and yield when the fertilizer level and density are changed.However,the density has more influence on the number of the effective branches and pods.When the increased density by 30×104 plant/ha,the number of effective branches is reduced 1.7-3.8 per plant.The oil content of rapeseed of main stem is higher than that of branches,while the contents of protein and glucosinolate are lower in the main stems.There would be a fall in the content of oil and an increase of protein and glucosinolate in rapeseed when the amount of fertilizer is raised,while when the density is increased,there would be an increase in oil content and falls in the contents of protein and glucosinolate of main stem and branches,and a fall in the glucosinolate content of the whole plant.Considering reducing fertilizer application,saving cost and increase efficiency,the optimum levels of N,P2O5 and K2O application for Huayouza 9 are 135-225 kg/ha,75-124 kg/ha and 108-180 kg/ha respectively,and density is increased appropriately in the range of 45×104-75×104 plant/ha in order to obtain seed yield more than 3000 kg/ha.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 19
Claim · model-written summary
Increasing fertilizer increased rapeseed yield.
Not reportedComparator
Verbatim
e0“yields of rapeseed are increased with the increases of fertilizer and density”
Claim · model-written summary
Increasing planting density increased rapeseed yield.
Not reportedComparator
Verbatim
e0“yields of rapeseed are increased with the increases of fertilizer and density”
Claim · model-written summary
Fertilizer affected yield more than density.
Verbatim
e0“the influences of fertilizer levels on the increased yield rates are more effective than those of the densities.”
t0“rapeseed”
Claim · model-written summary
Increasing density at low fertilizer significantly increased yield.
- Taxon
- rapeseedt0
- Treatment
- increases of densitiese0
- Outcome
- yieldse0
- Direction
- increasede0
- Qualifier
- low fertilizer levele0
Not reportedComparator
Verbatim
e0“The increases of densities under the low fertilizer level have significant effect on the increased yields.”
t0“rapeseed”
Claim · model-written summary
Increasing density by 30×104 plant/ha reduced effective branches by 1.7-3.8 per plant.
- Taxon
- rapeseedt0
- Treatment
- increased density by 30×104 plant/hae0
- Outcome
- number of effective branchese0
- Direction
- reducede0
- Value
- 1.7-3.8 per plante0
Not reportedComparator
Verbatim
e0“When the increased density by 30×104 plant/ha,the number of effective branches is reduced 1.7-3.8 per plant.”
t0“rapeseed”
Claim · model-written summary
Main stem seed had higher oil content than branch seed.
Verbatim
e0“The oil content of rapeseed of main stem is higher than that of branches”
Claim · model-written summary
Main stems had lower protein content than branches.
Verbatim
e0“the contents of protein and glucosinolate are lower in the main stems.”
t0“rapeseed”
Claim · model-written summary
Main stems had lower glucosinolate content than branches.
Verbatim
e0“the contents of protein and glucosinolate are lower in the main stems.”
t0“rapeseed”
Claim · model-written summary
More fertilizer reduced rapeseed oil content.
Not reportedComparator
Verbatim
e0“There would be a fall in the content of oil and an increase of protein and glucosinolate in rapeseed when the amount of fertilizer is raised”
Claim · model-written summary
More fertilizer increased rapeseed protein content.
Not reportedComparator
Verbatim
e0“There would be a fall in the content of oil and an increase of protein and glucosinolate in rapeseed when the amount of fertilizer is raised”
Claim · model-written summary
More fertilizer increased rapeseed glucosinolate content.
Not reportedComparator
Verbatim
e0“There would be a fall in the content of oil and an increase of protein and glucosinolate in rapeseed when the amount of fertilizer is raised”
Claim · model-written summary
Higher density increased oil content in main stems and branches.
- Taxon
- rapeseedt0
- Organ / stage
- main stem and branchese0
- Treatment
- density is increasede0
- Outcome
- oil contente0
- Direction
- increasee0
Not reportedComparator
Verbatim
e0“when the density is increased,there would be an increase in oil content and falls in the contents of protein and glucosinolate of main stem and branches”
t0“rapeseed”
Claim · model-written summary
Higher density reduced protein content in main stems and branches.
- Taxon
- rapeseedt0
- Organ / stage
- main stem and branchese0
- Treatment
- density is increasede0
- Outcome
- proteine0
- Direction
- fallse0
Not reportedComparator
Verbatim
e0“when the density is increased,there would be an increase in oil content and falls in the contents of protein and glucosinolate of main stem and branches”
t0“rapeseed”
Claim · model-written summary
Higher density reduced glucosinolate content in main stems and branches.
- Taxon
- rapeseedt0
- Organ / stage
- main stem and branchese0
- Treatment
- density is increasede0
- Outcome
- glucosinolatee0
- Direction
- fallse0
Not reportedComparator
Verbatim
e0“when the density is increased,there would be an increase in oil content and falls in the contents of protein and glucosinolate of main stem and branches”
t0“rapeseed”
Claim · model-written summary
Higher density reduced whole-plant glucosinolate content.
- Taxon
- rapeseedt0
- Treatment
- density is increasede0
- Outcome
- glucosinolate content of the whole plante0
- Direction
- falle0
Not reportedComparator
Verbatim
e0“when the density is increased,there would be an increase in oil content and falls in the contents of protein and glucosinolate of main stem and branches,and a fall in the glucosinolate content of the whole plant.”
t0“rapeseed”
Claim · model-written summary
Authors recommend N at 135-225 kg/ha for Huayouza 9.
Verbatim
e0“the optimum levels of N,P2O5 and K2O application for Huayouza 9 are 135-225 kg/ha,75-124 kg/ha and 108-180 kg/ha respectively”
t0“rapeseed”
Claim · model-written summary
Authors recommend P2O5 at 75-124 kg/ha for Huayouza 9.
Verbatim
e0“the optimum levels of N,P2O5 and K2O application for Huayouza 9 are 135-225 kg/ha,75-124 kg/ha and 108-180 kg/ha respectively”
t0“rapeseed”
Claim · model-written summary
Authors recommend K2O at 108-180 kg/ha for Huayouza 9.
Verbatim
e0“the optimum levels of N,P2O5 and K2O application for Huayouza 9 are 135-225 kg/ha,75-124 kg/ha and 108-180 kg/ha respectively”
t0“rapeseed”
Claim · model-written summary
Authors recommend density of 45×104-75×104 plant/ha to obtain more than 3000 kg/ha seed yield.
Verbatim
e0“density is increased appropriately in the range of 45×104-75×104 plant/ha in order to obtain seed yield more than 3000 kg/ha.”
t0“rapeseed”
The same questions in other papers
fertilization · molecular: metabolites · Brassica napus (oilseed rape)Positive and negative results
4 papers in the same direction as this paper · 25 in the opposite direction
- positive
- positive
- positive
26 papers more in this group
See all 30 papers →density · yield · Brassica napus (oilseed rape)Positive and negative results
53 papers in the same direction as this paper · 29 in the opposite direction · 3 reporting no difference from an alternative
- negative
- no effect
- negative
82 papers more in this group
See all 86 papers →fertilization · yield · Brassica napus (oilseed rape)Positive and negative results
336 papers in the same direction as this paper · 37 in the opposite direction · 4 reporting no difference from an alternative
- positive
- negative
- no effect
374 papers more in this group
See all 378 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.