Abstract
The effect of nitrogen fertilizer and planting density on dry matter accumulation,nitrogen absorption,accumulation and distribution of alfalfa organ and seed yield was studied through field experiments.Results showed that the high level of nitrogen and low planting density(N3D1) enhanced dry matter and nitrogen accumulation of each organ.Nitrogen accumulation was varied for different nitrogen levels and planting densities.Stem was the main organ of nitrogen accumulation in the treatment of high planting density and low or medium nitrogen level.However,nitrogen mainly accumulated in flower pods in the treatment of low planting density and high nitrogen level.Dry matter and nitrogen accumulation increased with nitrogen level increasing.The highest dry matter and nitrogen accumulation were tested in treatment N3D1 compared with others.The average contents of dry matter accumulation in root,stem,leaf and flower pod of treatment N3D1 were 8.65,19.02,2.35 and 5.98 g·plant-1,respectively.Nitrogen contents in each organ were12.23,15.01,3.62,15.70 mg·plant-1,respectively.The optimal nitrogen application level and planting density were 150 and 3 kg·hm-2.Under the optimal condition,the seed yield of alfalfa can reached 740.36 kg·hm-2.
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Claims 19
Claim · model-written summary
High nitrogen with low planting density enhanced dry matter accumulation in alfalfa organs.
- Taxon
- Alfalfa
Medicago sativat0 - Treatment
- high level of nitrogen and low planting density(N3D1)e0
- Outcome
- dry mattere0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the high level of nitrogen and low planting density(N3D1) enhanced dry matter and nitrogen accumulation of each organ.”
t0“Alfalfa”
Claim · model-written summary
High nitrogen with low planting density enhanced nitrogen accumulation in alfalfa organs.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- high level of nitrogen and low planting density(N3D1)e0
- Outcome
- nitrogen accumulatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the high level of nitrogen and low planting density(N3D1) enhanced dry matter and nitrogen accumulation of each organ.”
t0“Alfalfa”
Claim · model-written summary
Under high density and low or medium nitrogen, alfalfa stems were the principal nitrogen accumulation organ.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- Steme0
- Treatment
- high planting density and low or medium nitrogen levele0
- Outcome
- main organ of nitrogen accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stem was the main organ of nitrogen accumulation in the treatment of high planting density and low or medium nitrogen level.”
t0“Alfalfa”
Claim · model-written summary
Under low density and high nitrogen, alfalfa nitrogen accumulated mainly in flower pods.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- flower podse0
- Treatment
- low planting density and high nitrogen levele0
- Outcome
- nitrogen mainly accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen mainly accumulated in flower pods in the treatment of low planting density and high nitrogen level.”
t0“Alfalfa”
Claim · model-written summary
Alfalfa dry matter increased as nitrogen level increased.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- nitrogen levele0
- Outcome
- Dry mattere0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter and nitrogen accumulation increased with nitrogen level increasing.”
t0“Alfalfa”
Claim · model-written summary
Alfalfa nitrogen accumulation increased as nitrogen level increased.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- nitrogen levele0
- Outcome
- nitrogen accumulatione0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry matter and nitrogen accumulation increased with nitrogen level increasing.”
t0“Alfalfa”
Claim · model-written summary
N3D1 had the highest dry matter accumulation among treatments.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest dry matter and nitrogen accumulation were tested in treatment N3D1 compared with others.”
t0“Alfalfa”
Claim · model-written summary
N3D1 had the highest nitrogen accumulation among treatments.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- N3D1e0
- Outcome
- nitrogen accumulatione0
- Direction
- higheste0
- Comparator
- otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest dry matter and nitrogen accumulation were tested in treatment N3D1 compared with others.”
t0“Alfalfa”
Claim · model-written summary
N3D1 root dry matter averaged 8.65 g·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- roote0
- Treatment
- N3D1e0
- Outcome
- dry matter accumulatione0
- Value
- 8.65e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average contents of dry matter accumulation in root,stem,leaf and flower pod of treatment N3D1 were 8.65,19.02,2.35 and 5.98 g·plant-1,respectively.”
t0“Alfalfa”
Claim · model-written summary
N3D1 stem dry matter averaged 19.02 g·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- steme0
- Treatment
- N3D1e0
- Outcome
- dry matter accumulatione0
- Value
- 19.02e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average contents of dry matter accumulation in root,stem,leaf and flower pod of treatment N3D1 were 8.65,19.02,2.35 and 5.98 g·plant-1,respectively.”
t0“Alfalfa”
Claim · model-written summary
N3D1 leaf dry matter averaged 2.35 g·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- leafe0
- Treatment
- N3D1e0
- Outcome
- dry matter accumulatione0
- Value
- 2.35e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average contents of dry matter accumulation in root,stem,leaf and flower pod of treatment N3D1 were 8.65,19.02,2.35 and 5.98 g·plant-1,respectively.”
t0“Alfalfa”
Claim · model-written summary
N3D1 flower pod dry matter averaged 5.98 g·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- flower pode0
- Treatment
- N3D1e0
- Outcome
- dry matter accumulatione0
- Value
- 5.98 g·plant-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The average contents of dry matter accumulation in root,stem,leaf and flower pod of treatment N3D1 were 8.65,19.02,2.35 and 5.98 g·plant-1,respectively.”
t0“Alfalfa”
Claim · model-written summary
N3D1 root nitrogen content was 12.23 mg·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- roote1
- Treatment
- N3D1e1
- Outcome
- Nitrogen contentse0
- Value
- 12.23e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen contents in each organ were12.23,15.01,3.62,15.70 mg·plant-1,respectively.”
e1“root,stem,leaf and flower pod of treatment N3D1”
t0“Alfalfa”
Claim · model-written summary
N3D1 stem nitrogen content was 15.01 mg·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- steme1
- Treatment
- N3D1e1
- Outcome
- Nitrogen contentse0
- Value
- 15.01e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen contents in each organ were12.23,15.01,3.62,15.70 mg·plant-1,respectively.”
e1“root,stem,leaf and flower pod of treatment N3D1”
t0“Alfalfa”
Claim · model-written summary
N3D1 leaf nitrogen content was 3.62 mg·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- leafe1
- Treatment
- N3D1e1
- Outcome
- Nitrogen contentse0
- Value
- 3.62e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen contents in each organ were12.23,15.01,3.62,15.70 mg·plant-1,respectively.”
e1“root,stem,leaf and flower pod of treatment N3D1”
t0“Alfalfa”
Claim · model-written summary
N3D1 flower pod nitrogen content was 15.70 mg·plant-1.
- Taxon
- AlfalfaMedicago sativat0
- Organ / stage
- flower pode1
- Treatment
- N3D1e1
- Outcome
- Nitrogen contentse0
- Value
- 15.70 mg·plant-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen contents in each organ were12.23,15.01,3.62,15.70 mg·plant-1,respectively.”
e1“root,stem,leaf and flower pod of treatment N3D1”
t0“Alfalfa”
Claim · model-written summary
The optimal nitrogen application level was 150 kg·hm-2.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- optimal nitrogen application levele0
- Value
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal nitrogen application level and planting density were 150 and 3 kg·hm-2.”
t0“Alfalfa”
Claim · model-written summary
The optimal planting density was 3 kg·hm-2.
- Taxon
- AlfalfaMedicago sativat0
- Outcome
- planting densitye0
- Value
- 3 kg·hm-2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimal nitrogen application level and planting density were 150 and 3 kg·hm-2.”
t0“Alfalfa”
Claim · model-written summary
Under the optimal conditions, alfalfa seed yield could reach 740.36 kg·hm-2.
- Taxon
- alfalfaMedicago sativae0
- Outcome
- seed yielde0
- Value
- 740.36 kg·hm-2e0
- Qualifier
- Under the optimal conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under the optimal condition,the seed yield of alfalfa can reached 740.36 kg·hm-2.”
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See all 22 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.