Paper · 2022 · Archives of Agronomy and Soil Science

Integrated nutrient management reduced the nutrient losses and increased crop yield in irrigated wheat

Sibananda Darjee; Manoj Shrivastava; Sapna Langyan; et al.

6
claims
15
verbatim quotes
34
citations
2
research areas
—
Not open access

Abstract

Nitrogen (N), the most vital nutrient, undergoes a transformation in the soil and was subjected to loss through ammonia volatilization, nitrate leaching, and denitrification, which lower the soil fertility, crop yield and pollute the environment. Integrated nutrient management (INM) improves the nutrient supply system by integrating recommended dose fertilizers and biofertilizers, lessens the nitrogen losses, and synchronizes with the nutrient demand of the crop. To evaluate the impact of INM on minimization of N losses and improvement of wheat (Triticum aestivum L.) yield and growth parameters, a field experiment was conducted with different combinations of biofertilizers along with the recommended dosage of fertilizers. Application of NPK + Azotobacter + mycorrhiza (Tram) in combination was found to improve soil nitrogen dynamics, availability of P, K, microbial activity, root growth, urease activity, and nitrogen use efficiency as compared to NPK (Tr) only. The cumulative emission from ammonia flux in the INM plot varied from 10.2 to 10.6 kg ha−1 and denitrification losses varied from 2.4 to 2.5 kg ha−1. At the same time, these were recorded significantly higher in Tr plot. The yield obtained under the INM plot receiving Tram was recorded as 6.4 t ha−1, which is higher than other treatments.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus Azotobacter and mycorrhiza improved soil nitrogen dynamics and P and K availability relative to NPK.

Treatment
NPK + Azotobacter + mycorrhiza (Tram)e0
Interactor
AzotobacterAzotobactere0symbiont
Second interactor
mycorrhizae0symbiont
Outcome
soil nitrogen dynamics, availability of P, Ke0
Direction
improvee0
Comparator
NPK (Tr) onlye0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Application of NPK + Azotobacter + mycorrhiza (Tram) in combination was found to improve soil nitrogen dynamics, availability of P, K, microbial activity, root growth, urease activity, and nitrogen use efficiency as compared to NPK (Tr) only.”

✓ located verbatim in the source · abstract, characters 732–974 · show in text ↑
e1

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined treatment improved microbial activity, root growth and urease activity relative to NPK.

Treatment
NPK + Azotobacter + mycorrhiza (Tram)e0
Outcome
microbial activity, root growth, urease activitye0
Direction
improvee0
Comparator
NPK (Tr) onlye0

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

“Application of NPK + Azotobacter + mycorrhiza (Tram) in combination was found to improve soil nitrogen dynamics, availability of P, K, microbial activity, root growth, urease activity, and nitrogen use efficiency as compared to NPK (Tr) only.”

✓ located verbatim in the source · abstract, characters 732–974 · show in text ↑
e1

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined treatment improved nitrogen use efficiency relative to NPK.

Treatment
NPK + Azotobacter + mycorrhiza (Tram)e0
Outcome
nitrogen use efficiencye0
Direction
improvee0
Comparator
NPK (Tr) onlye0

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

“Application of NPK + Azotobacter + mycorrhiza (Tram) in combination was found to improve soil nitrogen dynamics, availability of P, K, microbial activity, root growth, urease activity, and nitrogen use efficiency as compared to NPK (Tr) only.”

✓ located verbatim in the source · abstract, characters 732–974 · show in text ↑
e1

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The INM plot emitted 10.2 to 10.6 kg ha−1 of ammonia, less than the NPK plot.

Treatment
INMe0
Outcome
cumulative emission from ammonia fluxe0
Direction
highere1
Value
10.2 to 10.6 kg ha−1e0
Comparator
Tr plote1

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 cumulative emission from ammonia flux in the INM plot varied from 10.2 to 10.6 kg ha−1”

✓ located verbatim in the source · abstract, characters 975–1065 · show in text ↑
e1

“At the same time, these were recorded significantly higher in Tr plot.”

✓ located verbatim in the source · abstract, characters 1125–1195 · show in text ↑
e2

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The INM plot had 2.4 to 2.5 kg ha−1 denitrification losses, less than the NPK plot.

Treatment
INMe3
Outcome
denitrification lossese0
Direction
highere1
Value
2.4 to 2.5 kg ha−1e0
Comparator
Tr plote1

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

“denitrification losses varied from 2.4 to 2.5 kg ha−1”

✓ located verbatim in the source · abstract, characters 1070–1123 · show in text ↑
e1

“At the same time, these were recorded significantly higher in Tr plot.”

✓ located verbatim in the source · abstract, characters 1125–1195 · show in text ↑
e2

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑
e3

“in the INM plot”

✓ located verbatim in the source · abstract, characters 1017–1032 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tram yielded 6.4 t ha−1, higher than other treatments.

Treatment
Trame0
Outcome
yielde0
Direction
highere0
Value
6.4 t ha−1e0
Comparator
other treatmentse0

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 yield obtained under the INM plot receiving Tram was recorded as 6.4 t ha−1, which is higher than other treatments.”

✓ located verbatim in the source · abstract, characters 1196–1315 · show in text ↑
e1

“wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 545–573 · show in text ↑

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

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. negative
See all 2 papers →

Azotobacter · soil: biology · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

Azotobacter · soil: chemistry · Triticum aestivum (wheat)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

fertilization · soil: biology · Triticum aestivum (wheat)Results differ

82 papers: 77 positive, 5 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

78 papers more in this group

See all 82 papers →

mycorrhiza · soil: chemistry · Triticum aestivum (wheat)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

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

  1. negative
  2. no effect
  3. positive

5 papers more in this group

See all 9 papers →

fertilization · environment: emissions · Triticum aestivum (wheat)Positive and negative results

47 papers: 29 positive, 18 negative or no effect

28 papers in the same direction as this paper · 18 in the opposite direction

  1. negative
  2. no effect
  3. negative

43 papers more in this group

See all 47 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

See all 176 papers →

fertilization · soil: chemistry · Triticum aestivum (wheat)Positive and negative results

214 papers: 190 positive, 24 negative or no effect

189 papers in the same direction as this paper · 22 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

210 papers more in this group

See all 214 papers →

8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.