Abstract
A study on absorption and utilization of N in flue-cured tobacco from rape straw fertilizer was conducted by isotopic tracing technology(The rape straw labeled by 15N and NH4NO3 was used as fertilized for tobacco).The results showed: The ration of 15N utilization in tobacco plant from straw fertilizer was lower (0.088 %-5.37 %),which was graded as at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturity,leaves﹥stalk﹥roots﹥tips,middle leaves ﹥upper leaves﹥lower leaves.Meanwhile,the residual ration of 15N in soil was higher(75.65 %-85.06 %).Adding the application rate of rape straw could increase the absorption percent of 15N in different parts of tobacco plant.The results also said that,when the rate of application of rape straw fertilizer was 25 %,The utilization ration of 15N in tobacco plant from straw fertilizer was the highest among all the treatments,but the residual ration of 15N in soil was the lowest,and the balanced deviation of 15N was the most appropriate,these are benefit to the utilization of 15N in tobacco plant in those years.However,when the rate of application of rape straw fertilizer was 100 %,the utilization ration of 15N in tobacco plant from straw fertilizer was the lowest and the residual ration of 15N in soil was the highest among all treatments,these could enrich the soil.When the rate of application of rape straw fertilizer was 25 %,the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizer could reduce the utilization of 15N in roots,stalk and tip,but add it in leaves and raise the ANin soil.
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Claims 14
Claim · model-written summary
The 15N utilization ratio of tobacco plants from straw fertilizer was 0.088 %-5.37 %.
- Taxon
- tobacco
Nicotiana tabacume1 - Treatment
- straw fertilizere1
- Outcome
- ration of 15N utilizatione1
- Value
- 0.088 %-5.37 %e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The ration of 15N utilization in tobacco plant from straw fertilizer was lower (0.088 %-5.37 %),which was graded as at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturity,leaves﹥stalk﹥roots﹥tips,middle leaves ﹥upper leaves﹥lower leaves”
Claim · model-written summary
Residual 15N in soil was 75.65 %-85.06 % of the applied amount.
Verbatim
e0“A study on absorption and utilization of N in flue-cured tobacco from rape straw fertilizer was conducted by isotopic tracing technology”
e2“Meanwhile,the residual ration of 15N in soil was higher(75.65 %-85.06 %)”
Claim · model-written summary
15N utilization in tobacco was graded leaves over stalk, roots and tips.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- leaves﹥stalk﹥roots﹥tipse1
- Outcome
- ration of 15N utilizatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The ration of 15N utilization in tobacco plant from straw fertilizer was lower (0.088 %-5.37 %),which was graded as at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturity,leaves﹥stalk﹥roots﹥tips,middle leaves ﹥upper leaves﹥lower leaves”
Claim · model-written summary
15N utilization in tobacco was graded by leaf maturity, upper over middle over lower.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturitye1
- Outcome
- ration of 15N utilizatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The ration of 15N utilization in tobacco plant from straw fertilizer was lower (0.088 %-5.37 %),which was graded as at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturity,leaves﹥stalk﹥roots﹥tips,middle leaves ﹥upper leaves﹥lower leaves”
Claim · model-written summary
15N utilization in tobacco was graded middle leaves over upper leaves over lower leaves.
- Taxon
- tobaccoNicotiana tabacume1
- Organ / stage
- middle leaves ﹥upper leaves﹥lower leavese1
- Outcome
- ration of 15N utilizatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The ration of 15N utilization in tobacco plant from straw fertilizer was lower (0.088 %-5.37 %),which was graded as at upper leaf maturity﹥at middle leaf maturity﹥at lower leaf maturity,leaves﹥stalk﹥roots﹥tips,middle leaves ﹥upper leaves﹥lower leaves”
Claim · model-written summary
At 25 % straw rate, 15N utilization in tobacco was the highest among all treatments.
- Taxon
- tobaccoNicotiana tabacume4
- Treatment
- rate of application of rape straw fertilizer was 25 %e4
- Outcome
- utilization ration of 15Ne4
- Direction
- higheste4
- Comparator
- among all the treatmentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results also said that,when the rate of application of rape straw fertilizer was 25 %,The utilization ration of 15N in tobacco plant from straw fertilizer was the highest among all the treatments,but the residual ration of 15N in soil was the lowest,and the balanced deviation of 15N was the most appropriate,these are benefit to the utilization of 15N in tobacco plant in those years”
Claim · model-written summary
At 25 % straw rate, residual 15N in soil was the lowest among all treatments.
- Taxon
- tobaccoNicotiana tabacume4
- Treatment
- rate of application of rape straw fertilizer was 25 %e4
- Outcome
- residual ration of 15N in soile4
- Direction
- loweste4
- Comparator
- among all the treatmentse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results also said that,when the rate of application of rape straw fertilizer was 25 %,The utilization ration of 15N in tobacco plant from straw fertilizer was the highest among all the treatments,but the residual ration of 15N in soil was the lowest,and the balanced deviation of 15N was the most appropriate,these are benefit to the utilization of 15N in tobacco plant in those years”
Claim · model-written summary
At 25 % straw rate, the balanced deviation of 15N was the most appropriate.
- Taxon
- tobaccoNicotiana tabacume4
- Treatment
- rate of application of rape straw fertilizer was 25 %e4
- Outcome
- balanced deviation of 15Ne4
- Direction
- most appropriatee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The results also said that,when the rate of application of rape straw fertilizer was 25 %,The utilization ration of 15N in tobacco plant from straw fertilizer was the highest among all the treatments,but the residual ration of 15N in soil was the lowest,and the balanced deviation of 15N was the most appropriate,these are benefit to the utilization of 15N in tobacco plant in those years”
Claim · model-written summary
At 100 % straw rate, 15N utilization in tobacco was the lowest among all treatments.
- Taxon
- tobaccoNicotiana tabacume5
- Treatment
- rate of application of rape straw fertilizer was 100 %e5
- Outcome
- utilization ration of 15Ne5
- Direction
- loweste5
- Comparator
- among all treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“However,when the rate of application of rape straw fertilizer was 100 %,the utilization ration of 15N in tobacco plant from straw fertilizer was the lowest and the residual ration of 15N in soil was the highest among all treatments,these could enrich the soil”
Claim · model-written summary
At 100 % straw rate, residual 15N in soil was the highest among all treatments, which could enrich the soil.
- Taxon
- tobaccoNicotiana tabacume5
- Treatment
- rate of application of rape straw fertilizer was 100 %e5
- Outcome
- residual ration of 15N in soile5
- Direction
- higheste5
- Qualifier
- these could enrich the soile5
- Comparator
- among all treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“However,when the rate of application of rape straw fertilizer was 100 %,the utilization ration of 15N in tobacco plant from straw fertilizer was the lowest and the residual ration of 15N in soil was the highest among all treatments,these could enrich the soil”
Claim · model-written summary
Adding the rape straw application rate increased 15N absorption percent in different parts of tobacco plants.
- Taxon
- tobaccoNicotiana tabacume3
- Treatment
- Adding the application rate of rape strawe3
- Outcome
- absorption percent of 15N in different parts of tobacco plante3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Adding the application rate of rape straw could increase the absorption percent of 15N in different parts of tobacco plant”
Claim · model-written summary
At 25 % straw rate, splitting NH4NO3 into basic and additional fertilizer reduced 15N utilization in roots, stalk and tips.
- Taxon
- flue-cured tobaccoe0
- Organ / stage
- roots,stalk and tipe6
- Treatment
- the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizere6
- Outcome
- utilization of 15Ne6
- Direction
- reducee6
- Qualifier
- rate of application of rape straw fertilizer was 25 %e6
Not reportedComparator
Verbatim
e0“A study on absorption and utilization of N in flue-cured tobacco from rape straw fertilizer was conducted by isotopic tracing technology”
e6“When the rate of application of rape straw fertilizer was 25 %,the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizer could reduce the utilization of 15N in roots,stalk and tip,but add it in leaves and raise the ANin soil”
Claim · model-written summary
At 25 % straw rate, splitting NH4NO3 increased 15N utilization in leaves.
- Taxon
- flue-cured tobaccoe0
- Organ / stage
- leavese6
- Treatment
- the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizere6
- Outcome
- utilization of 15Ne6
- Direction
- adde6
- Qualifier
- rate of application of rape straw fertilizer was 25 %e6
Not reportedComparator
Verbatim
e0“A study on absorption and utilization of N in flue-cured tobacco from rape straw fertilizer was conducted by isotopic tracing technology”
e6“When the rate of application of rape straw fertilizer was 25 %,the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizer could reduce the utilization of 15N in roots,stalk and tip,but add it in leaves and raise the ANin soil”
Claim · model-written summary
At 25 % straw rate, splitting NH4NO3 raised 15N in the soil.
- Taxon
- flue-cured tobaccoe0
- Treatment
- the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizere6
- Outcome
- ANin soile6
- Direction
- raisee6
- Qualifier
- rate of application of rape straw fertilizer was 25 %e6
Not reportedComparator
Verbatim
e0“A study on absorption and utilization of N in flue-cured tobacco from rape straw fertilizer was conducted by isotopic tracing technology”
e6“When the rate of application of rape straw fertilizer was 25 %,the treat of 1/2 NH4NO3 as basic fertilizer and 1/2 NH4NO3 as additional fertilizer could reduce the utilization of 15N in roots,stalk and tip,but add it in leaves and raise the ANin soil”
The same questions in other papers
Brassica napus · nutrient: content · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- 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.