Paper · 2015

Effect of Fertilization on Wheat Yield and Fertilizer Use Efficiency in Northwest Guizhou

Xue Xiao-hu

8
claims
16
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Through three years of the3414fertilizer experiment,the effect of fertilization on wheat yield and fertilizer use efficiency was studied in the northwest of Guizhou.The results showed that:1Wheat yield was maximal after application of N,P and K fertilizers which was 6 193kg·hm-2.When nutrition lacked wheat yield decreased,the lowest yield of wheat yield was appeared in unfertilized treatment,and reduced 35.69% compared with the NPK treatment.Wheat yield improved with the increasing rate of N,P and K fertilizer,the maximum increased 37.35%.2N use efficiency and P use efficiency were 50.78%and 29.77%after application of N,P and K fertilizers,respectively.N use efficiency and P use efficiency decreased if a fertilizer didn't applied alone.3N use efficiency and P use efficiency was improved with the increasing applied rate of N,P and K fertilizer,but it decreased when the rate of N,P and K fertilizer was excessive.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat yield was maximal after application of N, P and K fertilizers, at 6 193 kg/hm2.

Treatment
application of N,P and K fertilizerse1
Outcome
Wheat yielde1
Direction
maximale1
Value
6 193kg·hm-2e1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e1

“Wheat yield was maximal after application of N,P and K fertilizers which was 6 193kg·hm-2”

✓ located verbatim in the source · abstract, characters 190–279 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The unfertilized treatment reduced wheat yield by 35.69% compared with the NPK treatment.

Treatment
unfertilized treatmente2
Outcome
wheat yielde2
Direction
reducede2
Value
35.69%e2
Comparator
NPK treatmente2

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e2

“the lowest yield of wheat yield was appeared in unfertilized treatment,and reduced 35.69% compared with the NPK treatment”

✓ located verbatim in the source · abstract, characters 324–445 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat yield improved with increasing rate of N, P and K fertilizer, with a maximum increase of 37.35%.

Treatment
increasing rate of N,P and K fertilizere3
Outcome
Wheat yielde3
Direction
improvede3
Value
37.35%e3

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e3

“Wheat yield improved with the increasing rate of N,P and K fertilizer,the maximum increased 37.35%”

✓ located verbatim in the source · abstract, characters 446–544 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

N use efficiency of wheat was 50.78% after application of N, P and K fertilizers.

Treatment
application of N,P and K fertilizerse4
Outcome
N use efficiencye4
Value
50.78%e4

Not reportedDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e4

“N use efficiency and P use efficiency were 50.78%and 29.77%after application of N,P and K fertilizers,respectively”

✓ located verbatim in the source · abstract, characters 546–660 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

P use efficiency of wheat was 29.77% after application of N, P and K fertilizers.

Treatment
application of N,P and K fertilizerse4
Outcome
P use efficiencye4
Value
29.77%e4

Not reportedDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e4

“N use efficiency and P use efficiency were 50.78%and 29.77%after application of N,P and K fertilizers,respectively”

✓ located verbatim in the source · abstract, characters 546–660 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

N and P use efficiency of wheat decreased when a fertilizer was not applied alone.

Treatment
a fertilizer didn't applied alonee5
Outcome
N use efficiency and P use efficiencye5
Direction
decreasede5

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e5

“N use efficiency and P use efficiency decreased if a fertilizer didn't applied alone”

✓ located verbatim in the source · abstract, characters 661–745 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N and P use efficiency of wheat improved with increasing applied rate of N, P and K fertilizer.

Treatment
increasing applied rate of N,P and K fertilizere6
Outcome
N use efficiency and P use efficiencye6
Direction
improvede6

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e6

“N use efficiency and P use efficiency was improved with the increasing applied rate of N,P and K fertilizer,but it decreased when the rate of N,P and K fertilizer was excessive”

✓ located verbatim in the source · abstract, characters 747–923 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

N and P use efficiency of wheat decreased when the rate of N, P and K fertilizer was excessive.

Treatment
the rate of N,P and K fertilizer was excessivee6
Outcome
N use efficiency and P use efficiencye6
Direction
decreasede6

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat”

✓ located verbatim in the source · title, characters 27–32 · show in text ↑
e6

“N use efficiency and P use efficiency was improved with the increasing applied rate of N,P and K fertilizer,but it decreased when the rate of N,P and K fertilizer was excessive”

✓ located verbatim in the source · abstract, characters 747–923 · show in text ↑

nitrogen · nutrient: efficiency · Triticum aestivum (wheat)Results differ

174 papers: 127 positive, 47 negative or no effect

126 papers in the same direction as this paper · 45 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

170 papers more in this group

See all 174 papers →

potassium · nutrient: efficiency · Triticum aestivum (wheat)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

8 papers more in this group

See all 12 papers →

phosphorus · nutrient: efficiency · Triticum aestivum (wheat)Positive and negative results

33 papers: 27 positive, 6 negative or no effect

26 papers in the same direction as this paper · 6 in the opposite direction

  1. negative
  2. negative
  3. negative

29 papers more in this group

See all 33 papers →

fertilization · nutrient: efficiency · Triticum aestivum (wheat)Positive and negative results

176 papers: 142 positive, 34 negative or no effect

141 papers in the same direction as this paper · 33 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

172 papers more in this group

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potassium · yield · Triticum aestivum (wheat)Positive and negative results

257 papers: 227 positive, 30 negative or no effect

226 papers in the same direction as this paper · 29 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

253 papers more in this group

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phosphorus · yield · Triticum aestivum (wheat)Positive and negative results

572 papers: 524 positive, 48 negative or no effect

523 papers in the same direction as this paper · 43 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

568 papers more in this group

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nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

2,057 papers more in this group

See all 2,061 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this paper · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

3,434 papers more in this group

See all 3,438 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.