Paper · 2003 · Journal of Plant Nutrition

Effects of Nitrogen and Phosphorus Fertilizers and Intercropping on Uptake of Nitrogen and Phosphorus by Wheat, Maize, and Faba Bean

Wenxue Li; Long Li; Jianhao Sun; et al.

11
claims
12
verbatim quotes
47
citations
2
research areas
—
Not open access

Abstract

Abstract One‐third of all the cultivated land area is used for multiple cropping and half of the total grain yield is produced with multiple cropping in China. There have been numerous studies on nutrient acquisition by crops in legume/non‐legume intercropping systems, but few on nutrient uptake in cereal/cereal intercropping. This paper describes a field experiment in which integrated wheat/maize and maize/faba bean systems were compared with sole wheat and sole faba bean cropping to assess the effects of intercropping on nutrient uptake by wheat, maize, and faba bean under various application rates of nitrogen (N) and phosphorous (P) fertilizers. Results show that both N and P fertilizers and intercropping enhanced N uptake by wheat, while only P fertilizer and intercropping increased P acquisition by wheat. The advantage of N uptake by border rows of wheat intercropped with maize declined with increasing N fertilizer application rate, but that of P acquisition was not affected by P fertilizer. The amounts of both N and P taken up by maize intercropped with faba bean were much higher than those by maize intercropped with wheat throughout the period of intercropping. Both fertilization and intercropping did not influence the N and P uptake by faba bean. Keywords: Faba beanIntercroppingFertilizerMaizeNutrient acquisitionWheat Acknowledgments We thank the Major State Basic Research Development Program of the People's Republic of China (Project number G1999011707) and the National Natural Science Foundation of China (Project number 30070450) for generous financial support.

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Claims 11

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilizer enhanced wheat nitrogen uptake.

Treatment
Ne0
Outcome
N uptakee0
Direction
enhancede0

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

e0

“both N and P fertilizers and intercropping enhanced N uptake by wheat”

✓ located verbatim in the source · abstract, characters 675–744 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phosphorus fertilizer enhanced wheat nitrogen uptake.

Treatment
P fertilizerse0
Outcome
N uptakee0
Direction
enhancede0

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

e0

“both N and P fertilizers and intercropping enhanced N uptake by wheat”

✓ located verbatim in the source · abstract, characters 675–744 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping enhanced wheat nitrogen uptake.

Treatment
intercroppinge0
Outcome
N uptakee0
Direction
enhancede0

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

e0

“both N and P fertilizers and intercropping enhanced N uptake by wheat”

✓ located verbatim in the source · abstract, characters 675–744 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phosphorus fertilizer increased wheat phosphorus acquisition.

Treatment
P fertilizere0
Outcome
P acquisitione0
Direction
increasede0

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

e0

“only P fertilizer and intercropping increased P acquisition by wheat.”

✓ located verbatim in the source · abstract, characters 752–821 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Intercropping increased wheat phosphorus acquisition.

Treatment
intercroppinge0
Outcome
P acquisitione0
Direction
increasede0

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

e0

“only P fertilizer and intercropping increased P acquisition by wheat.”

✓ located verbatim in the source · abstract, characters 752–821 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The nitrogen uptake advantage of border-row wheat declined as nitrogen fertilizer rate increased.

Organ / stage
border rowse0
Treatment
increasing N fertilizer application ratee0
Outcome
advantage of N uptakee0
Direction
declinede0

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

e0

“The advantage of N uptake by border rows of wheat intercropped with maize declined with increasing N fertilizer application rate”

✓ located verbatim in the source · abstract, characters 822–950 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The phosphorus acquisition advantage of wheat was not affected by phosphorus fertilizer.

Treatment
P fertilizere0
Outcome
P acquisitione0
Direction
not affectede0

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

e0

“that of P acquisition was not affected by P fertilizer.”

✓ located verbatim in the source · abstract, characters 956–1011 · show in text ↑
t0

“Wheat”

✓ located verbatim in the source · title, characters 105–110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize intercropped with faba bean took up much more nitrogen than maize intercropped with wheat.

Taxon
maizeZea mayse0
Treatment
intercropped with faba beane0
Outcome
Ne0
Direction
highere0
Comparator
maize intercropped with wheate0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The amounts of both N and P taken up by maize intercropped with faba bean were much higher than those by maize intercropped with wheat throughout the period of intercropping.”

✓ located verbatim in the source · abstract, characters 1012–1186 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize intercropped with faba bean took up much more phosphorus than maize intercropped with wheat.

Taxon
maizeZea mayse0
Treatment
intercropped with faba beane0
Outcome
Pe0
Direction
highere0
Comparator
maize intercropped with wheate0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The amounts of both N and P taken up by maize intercropped with faba bean were much higher than those by maize intercropped with wheat throughout the period of intercropping.”

✓ located verbatim in the source · abstract, characters 1012–1186 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fertilization did not influence faba bean nitrogen and phosphorus uptake.

Taxon
faba beanVicia fabae0
Treatment
fertilizatione0
Outcome
N and P uptakee0
Direction
did not influencee0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Both fertilization and intercropping did not influence the N and P uptake by faba bean.”

✓ located verbatim in the source · abstract, characters 1187–1274 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Intercropping did not influence faba bean nitrogen and phosphorus uptake.

Taxon
faba beanVicia fabae0
Treatment
intercroppinge0
Outcome
N and P uptakee0
Direction
did not influencee0

Not reportedComparator

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

Vicia faba
Vicia faba · TaxonRahmaziz · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Both fertilization and intercropping did not influence the N and P uptake by faba bean.”

✓ located verbatim in the source · abstract, characters 1187–1274 · show in text ↑

Vicia faba · nutrient: content · Zea mays (maize)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

intercropping · nutrient: content · Vicia faba (faba bean)Positive and negative results

23 papers: 20 positive, 3 negative or no effect

2 papers in the same direction as this paper · 20 in the opposite direction

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

intercropping · nutrient: content · Triticum aestivum (wheat)Positive and negative results

48 papers: 40 positive, 8 negative or no effect

39 papers in the same direction as this paper · 6 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

44 papers more in this group

See all 48 papers →

fertilization · nutrient: content · Vicia faba (faba bean)Positive and negative results

61 papers: 54 positive, 7 negative or no effect

6 papers in the same direction as this paper · 54 in the opposite direction

  1. positive
  2. positive
  3. positive

57 papers more in this group

See all 61 papers →

intercropping · nutrient: content · Zea mays (maize)Positive and negative results

141 papers: 122 positive, 19 negative or no effect

121 papers in the same direction as this paper · 15 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. positive
  3. no effect

137 papers more in this group

See all 141 papers →

nitrogen · nutrient: content · Triticum aestivum (wheat)Positive and negative results

479 papers: 410 positive, 69 negative or no effect

409 papers in the same direction as this paper · 64 in the opposite direction · 5 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

475 papers more in this group

See all 479 papers →

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

959 papers: 854 positive, 105 negative or no effect

853 papers in the same direction as this paper · 95 in the opposite direction · 10 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

955 papers more in this group

See all 959 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.