Abstract
In the conditions of three nitrogen amounts and three potassium amounts,the effects of different proportions of nitrogen and potassium amounts on the potassium absorption and utilization efficiency were discussed.The result indicated that the increase of application of potassium fertilizer amount improved the plant potassium accumulation,at the same level of nitrogen; the increase of application of nitrogen fertilizer improved potassium accumulation increasing by 30.61% ~ 37.30% at low level of nitrogen.Nitrogen fertilizer did not play a significant role in potassium absorption under high nitrogen level,but improved the potassium accumulation before spike differentiation.Increasing amount of nitrogen fertilizer could increase potassium percentage of total ratio in leavs,but reduced the potassium percentage of total ratio in culm,and had little effect on potassium distribution ratio in sheath and panicle.The potassium output rate of leaves decreased when nitrogen levels increased,the output rate of treatment of N2was nearly 9 percentage points less than that of treatment of N1.The potassium input rate of culm decreased significantly at high levels of nitrogen and potassium.The efficiency of potassium fertilizer in dry matter and grain production decreased when application of potassium fertilizer increased.Demand for potassium amount of one hundred kilograms of rice was the highest in the treatment of N2 but had no significant difference from treatment of N3.The effects of application levels of nitrogen fertilizer and potassium fertilizer on the potassium harvest index were not significant.
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Claims 14
Claim · model-written summary
Increasing potassium fertilizer improved plant potassium accumulation at the same nitrogen level in rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- the increase of application of potassium fertilizer amounte1
- Outcome
- plant potassium accumulatione1
- Direction
- improvede1
- Qualifier
- at the same level of nitrogene1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e1“the increase of application of potassium fertilizer amount improved the plant potassium accumulation,at the same level of nitrogen”
Claim · model-written summary
Increasing nitrogen fertilizer improved potassium accumulation in rice by 30.61% to 37.30% at low nitrogen level.
- Taxon
- riceOryza sativat0
- Treatment
- the increase of application of nitrogen fertilizere2
- Outcome
- potassium accumulatione2
- Direction
- improvede2
- Value
- 30.61% ~ 37.30%e2
- Qualifier
- at low level of nitrogene2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e2“the increase of application of nitrogen fertilizer improved potassium accumulation increasing by 30.61% ~ 37.30% at low level of nitrogen”
Claim · model-written summary
Nitrogen fertilizer did not significantly affect potassium absorption in rice under high nitrogen level.
- Taxon
- riceOryza sativat0
- Treatment
- Nitrogen fertilizere3
- Outcome
- potassium absorptione3
- Direction
- no_changeinferrede3
- Qualifier
- under high nitrogen levele3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e3“Nitrogen fertilizer did not play a significant role in potassium absorption under high nitrogen level,but improved the potassium accumulation before spike differentiation”
Claim · model-written summary
Nitrogen fertilizer improved potassium accumulation in rice before spike differentiation.
- Taxon
- riceOryza sativat0
- Treatment
- Nitrogen fertilizere3
- Outcome
- potassium accumulatione3
- Direction
- improvede3
- Qualifier
- before spike differentiatione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e3“Nitrogen fertilizer did not play a significant role in potassium absorption under high nitrogen level,but improved the potassium accumulation before spike differentiation”
Claim · model-written summary
Increasing nitrogen fertilizer could increase the potassium percentage of total ratio in rice leaves.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing amount of nitrogen fertilizere4
- Outcome
- potassium percentage of total ratio in leavse4
- Direction
- could increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e4“Increasing amount of nitrogen fertilizer could increase potassium percentage of total ratio in leavs,but reduced the potassium percentage of total ratio in culm,and had little effect on potassium distribution ratio in sheath and panicle”
Claim · model-written summary
Increasing nitrogen fertilizer reduced the potassium percentage of total ratio in rice culm.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing amount of nitrogen fertilizere4
- Outcome
- potassium percentage of total ratio in culme4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e4“Increasing amount of nitrogen fertilizer could increase potassium percentage of total ratio in leavs,but reduced the potassium percentage of total ratio in culm,and had little effect on potassium distribution ratio in sheath and panicle”
Claim · model-written summary
Increasing nitrogen fertilizer had little effect on the potassium distribution ratio in rice sheath and panicle.
- Taxon
- riceOryza sativat0
- Treatment
- Increasing amount of nitrogen fertilizere4
- Outcome
- potassium distribution ratio in sheath and paniclee4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e4“Increasing amount of nitrogen fertilizer could increase potassium percentage of total ratio in leavs,but reduced the potassium percentage of total ratio in culm,and had little effect on potassium distribution ratio in sheath and panicle”
Claim · model-written summary
The potassium output rate of rice leaves decreased as nitrogen levels increased.
- Taxon
- riceOryza sativat0
- Treatment
- nitrogen levelse5
- Outcome
- potassium output rate of leavese5
- Direction
- decreasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e5“The potassium output rate of leaves decreased when nitrogen levels increased,the output rate of treatment of N2was nearly 9 percentage points less than that of treatment of N1”
Claim · model-written summary
The potassium output rate under N2 was nearly 9 percentage points lower than under N1 in rice.
- Taxon
- riceOryza sativat0
- Treatment
- treatment of N2e5
- Outcome
- output ratee5
- Direction
- lesse5
- Value
- nearly 9 percentage pointse5
- Comparator
- treatment of N1e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e5“The potassium output rate of leaves decreased when nitrogen levels increased,the output rate of treatment of N2was nearly 9 percentage points less than that of treatment of N1”
Claim · model-written summary
The potassium input rate of rice culm decreased significantly at high nitrogen and potassium levels.
- Taxon
- riceOryza sativat0
- Treatment
- high levels of nitrogen and potassiume6
- Outcome
- potassium input rate of culme6
- Direction
- decreasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e6“The potassium input rate of culm decreased significantly at high levels of nitrogen and potassium”
Claim · model-written summary
The efficiency of potassium fertilizer in rice dry matter and grain production decreased as potassium fertilizer application increased.
- Taxon
- riceOryza sativat0
- Treatment
- application of potassium fertilizere7
- Outcome
- efficiency of potassium fertilizer in dry matter and grain productione7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e7“The efficiency of potassium fertilizer in dry matter and grain production decreased when application of potassium fertilizer increased”
Claim · model-written summary
Potassium demand per 100 kg of rice grain was highest under the N2 treatment.
- Taxon
- riceOryza sativat0
- Treatment
- treatment of N2e1
- Outcome
- Demand for potassium amount of one hundred kilograms of ricee1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e1“Demand for potassium amount of one hundred kilograms of rice was the highest in the treatment of N2 but had no significant difference from treatment of N3”
Claim · model-written summary
Potassium demand per 100 kg of rice showed no significant difference between the N2 and N3 treatments.
- Taxon
- riceOryza sativat0
- Treatment
- treatment of N2e1
- Outcome
- Demand for potassium amount of one hundred kilograms of ricee1
- Direction
- no_changeinferrede1
- Comparator
- treatment of N3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e1“Demand for potassium amount of one hundred kilograms of rice was the highest in the treatment of N2 but had no significant difference from treatment of N3”
Claim · model-written summary
Nitrogen and potassium application levels did not significantly affect the potassium harvest index of rice.
- Taxon
- riceOryza sativat0
- Treatment
- application levels of nitrogen fertilizer and potassium fertilizere2
- Outcome
- potassium harvest indexe2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Direct-seeded Rice”
e2“The effects of application levels of nitrogen fertilizer and potassium fertilizer on the potassium harvest index were not significant”
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