Abstract
To study phosphorus accumulation in roots,stem,leaf of flue-cured tobacco and utilization of phosphorus of flue-cured tobacco on chernozem,the experiment with three different nitrogen application of 0,52.5,and 67.5 kg·hm-2 was conducted.The results showed that:in root,the first 3～7 weeks was slow accumulation stage,7～15 weeks was the rapid accumulation stage;in stem,a rapid increase in 7～11 weeks,11～15 weeks keep stable,phosphorus accumulation was increased with nitrogen increasing.Phosphorus accumulation in leaves trended to stable increase,and always maintain N2 N1 N0;Phosphorus use efficiency increased gradually,were 10.02% and 1.74% in tobacco leaf harvested,the amount of nitrogen had no effected on phosphorus use efficiency.
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Claims 8
Claim · model-written summary
Root phosphorus accumulated slowly at weeks 3 to 7 and rapidly at weeks 7 to 15.
Verbatim
e0“in root,the first 3～7 weeks was slow accumulation stage,7～15 weeks was the rapid accumulation stage”
t0“Flue-cured Tobacco”
Claim · model-written summary
Stem phosphorus accumulation increased rapidly during weeks 7 to 11.
Verbatim
e0“in stem,a rapid increase in 7～11 weeks”
t0“Flue-cured Tobacco”
Claim · model-written summary
Stem phosphorus accumulation remained stable during weeks 11 to 15.
Verbatim
e0“11～15 weeks keep stable”
t0“Flue-cured Tobacco”
Claim · model-written summary
Stem phosphorus accumulation rose with increasing nitrogen.
Verbatim
e0“phosphorus accumulation was increased with nitrogen increasing”
t0“Flue-cured Tobacco”
Claim · model-written summary
Leaf phosphorus accumulation increased steadily.
Verbatim
e0“Phosphorus accumulation in leaves trended to stable increase”
t0“Flue-cured Tobacco”
Claim · model-written summary
Leaf phosphorus accumulation maintained the reported N2 N1 N0 ordering.
Verbatim
e0“always maintain N2 N1 N0”
t0“Flue-cured Tobacco”
Claim · model-written summary
Phosphorus use efficiency gradually increased.
Verbatim
e0“Phosphorus use efficiency increased gradually”
t0“Flue-cured Tobacco”
Claim · model-written summary
Nitrogen amount had no reported effect on phosphorus use efficiency.
- Taxon
- Flue-cured Tobaccot0
- Treatment
- amount of nitrogene0
- Outcome
- phosphorus use efficiencye0
- Direction
- no effectede0
Not reportedComparator
Verbatim
e0“the amount of nitrogen had no effected on phosphorus use efficiency.”
t0“Flue-cured Tobacco”
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See all 6 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.