Paper · 2013 · Journal of Plant Nutrition and Fertilizer

Effects of nitrogen fertilization on nutrient uptake,assignment,utilization and yield of melon

Qingjun Li

7
claims
9
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

An experiment was carried out to investigate the effects of different levels of nitrogen application on nutrient uptake,assignment,utilization and yield of melon in fields with drip irrigation.The results show that the accumulative amounts of N,P and K in melon plants are increased when more nitrogen fertilizer are applied,especially at the later growth stages of melon.Under the P2O5 application of 140 kg/ha,and K2O of 150 kg/ha,the nutrient uptakes,yield and sugar content of melon are the highest with 225 kg/ha N application.The nitrogen fertilizer use efficiencies are from 11% to 29% for the N treatments,and the nitrogen fertilizer use efficiency is increased with the reduction of nitrogen application rate.Among the nutrients required by melon,the amount of potassium is the highest,the amount of nitrogen takes the second place and the phosphorus is the least,which indicates melon is K-favoring crops.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing nitrogen fertilizer increased melon N, P and K accumulation, especially late in growth.

Taxon
melonCucumis meloe0
Treatment
more nitrogen fertilizere0
Outcome
accumulative amounts of N,P and Ke0
Direction
increasede0
Qualifier
especially at the later growth stages of melone0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The accumulative amounts of N,P and K in melon plants are increased when more nitrogen fertilizer are applied,especially at the later growth stages of melon”

✓ located after whitespace/quote normalisation · abstract, characters 215–371 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At fixed P and K rates, 225 kg/ha N produced the highest nutrient uptake in melon.

Taxon
melonCucumis meloe0
Treatment
225 kg/ha N applicatione0
Outcome
nutrient uptakese0
Direction
higheste0
Qualifier
P2O5 application of 140 kg/ha,and K2O of 150 kg/hae0

Not reportedComparatorSetting

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Under the P2O5 application of 140 kg/ha,and K2O of 150 kg/ha,the nutrient uptakes,yield and sugar content of melon are the highest with 225 kg/ha N application”

✓ located verbatim in the source · abstract, characters 372–531 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At fixed P and K rates, 225 kg/ha N produced the highest melon yield.

Taxon
melonCucumis meloe0
Treatment
225 kg/ha N applicatione0
Outcome
yielde0
Direction
higheste0
Qualifier
P2O5 application of 140 kg/ha,and K2O of 150 kg/hae0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Under the P2O5 application of 140 kg/ha,and K2O of 150 kg/ha,the nutrient uptakes,yield and sugar content of melon are the highest with 225 kg/ha N application”

✓ located verbatim in the source · abstract, characters 372–531 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At fixed P and K rates, 225 kg/ha N produced the highest melon sugar content.

Taxon
melonCucumis meloe0
Treatment
225 kg/ha N applicatione0
Outcome
sugar content of melone0
Direction
higheste0
Qualifier
P2O5 application of 140 kg/ha,and K2O of 150 kg/hae0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Under the P2O5 application of 140 kg/ha,and K2O of 150 kg/ha,the nutrient uptakes,yield and sugar content of melon are the highest with 225 kg/ha N application”

✓ located verbatim in the source · abstract, characters 372–531 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen fertilizer use efficiency ranged from 11% to 29% across nitrogen treatments.

Taxon
melonCucumis melot0
Treatment
N treatmentse0
Outcome
nitrogen fertilizer use efficienciese0
Value
11% to 29%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The nitrogen fertilizer use efficiencies are from 11% to 29% for the N treatments”

✓ located verbatim in the source · abstract, characters 532–613 · show in text ↑
t0

“melon”

✓ located verbatim in the source · title, characters 89–94 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilizer use efficiency increased as nitrogen application rate decreased.

Taxon
melonCucumis melot0
Treatment
reduction of nitrogen application ratee0
Outcome
nitrogen fertilizer use efficiencye0
Direction
increasede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the nitrogen fertilizer use efficiency is increased with the reduction of nitrogen application rate”

✓ located verbatim in the source · abstract, characters 618–717 · show in text ↑
t0

“melon”

✓ located verbatim in the source · title, characters 89–94 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Melon required potassium most, nitrogen second, and phosphorus least.

Taxon
melonCucumis meloe0
Outcome
amount of potassium is the highest,the amount of nitrogen takes the second place and the phosphorus is the leaste0
Direction
higheste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Among the nutrients required by melon,the amount of potassium is the highest,the amount of nitrogen takes the second place and the phosphorus is the least”

✓ located verbatim in the source · abstract, characters 718–872 · show in text ↑

nitrogen · quality: sugar starch · Cucumis melo (muskmelon)Results differ

9 papers: 2 positive, 7 negative or no effect

1 paper in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. negative
  3. no effect

5 papers more in this group

See all 9 papers →

nitrogen · nutrient: content · Cucumis melo (muskmelon)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

1 paper more in this group

See all 5 papers →

nitrogen · yield · Cucumis melo (muskmelon)Positive and negative results

28 papers: 23 positive, 5 negative or no effect

22 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
  3. no effect

24 papers more in this group

See all 28 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.