Paper · 2025 · Izvestiya of Kabardino-Balkarian State Agrarian University named after V M Kokov

Formation of productivity elements of winter barley and corn for grain, depending on different doses of fertilizers applied

1Office of Federal Service of State Registration; Marina Balkarova; Khazhset Khamokov

8
claims
16
verbatim quotes
0
citations
1
research areas
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Open access

Abstract

This article analyzes the results of studies to establish the dependence of winter barley and corn productivity on different doses of applied fertilizers. The experiments were conducted in the foothill zone of Kabardino-Balkaria from 2019 to 2021. The soil of the experimental plots is represented by leached chernozem. The humus content (according to Tyurin) is within 3.5%, phosphorus – 8.7 mg/100 g, potassium – 11.1 mg/100 g (according to Chirikov). The soil pH is neutral – 6.7. The winter barley variety "Babylon" and the grain corn variety "Kavkaz 307 MV" were chosen as the objects of research. The experiments showed that in winter barley crops, in the variants with the application of fertilizers, the indicators of productivity elements were higher than in the control ones. An increase in the fertilizer doses (in the first year of the studies) from N40P40 to N145P160K155 resulted in an increase in the number of stems before harvesting from 3.48 million pcs/ha to 4.67 million pcs/ha. The number of grains and the weight of grain in one ear were significantly higher when fertilizers were applied. The results of the experiments on corn crops for grain also showed the dependence of the productivity elements and the structure of the crop on the amount of fertilizers applied. The increase in the weight of 1000 seeds, when using fertilizers, in the first year of the experiments was from 231 to 278.6 g (about 19%); in the second year – from 213 to 250.4 g (about 14%); in the third – from 224 to 269.7 (about 19%). The length of the cobs, on average over three years, increased with the application of fertilizers and reached 18.2 cm. Weather conditions also had a positive effect on the formation of productivity elements, which ultimately led to an increase in crop yields.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In winter barley, fertilized variants had higher productivity-element indicators than the control.

Taxon
winter barleyHordeum vulgaree1
Treatment
application of fertilizerse1
Outcome
indicators of productivity elementse1
Direction
highere1
Comparator
control onese1
Setting
foothill zone of Kabardino-Balkariae0

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The experiments were conducted in the foothill zone of Kabardino-Balkaria from 2019 to 2021”

✓ located verbatim in the source · abstract, characters 155–246 · show in text ↑
e1

“in winter barley crops, in the variants with the application of fertilizers, the indicators of productivity elements were higher than in the control ones”

✓ located verbatim in the source · abstract, characters 631–784 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Raising fertilizer doses from N40P40 to N145P160K155 increased winter barley stems before harvest from 3.48 to 4.67 million pcs/ha in the first year.

Taxon
winter barleyHordeum vulgaree1
Treatment
fertilizer dosese2
Outcome
number of stems before harvestinge2
Direction
increasee2
Value
from 3.48 million pcs/ha to 4.67 million pcs/hae2
Setting
in the first year of the studiese2

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“in winter barley crops, in the variants with the application of fertilizers, the indicators of productivity elements were higher than in the control ones”

✓ located verbatim in the source · abstract, characters 631–784 · show in text ↑
e2

“An increase in the fertilizer doses (in the first year of the studies) from N40P40 to N145P160K155 resulted in an increase in the number of stems before harvesting from 3.48 million pcs/ha to 4.67 million pcs/ha”

✓ located verbatim in the source · abstract, characters 786–997 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fertilizer application significantly increased the number of grains and the grain weight per ear of winter barley.

Taxon
winter barleyHordeum vulgaree1
Treatment
fertilizerse3
Outcome
number of grains and the weight of grain in one eare3
Direction
highere3

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“in winter barley crops, in the variants with the application of fertilizers, the indicators of productivity elements were higher than in the control ones”

✓ located verbatim in the source · abstract, characters 631–784 · show in text ↑
e3

“The number of grains and the weight of grain in one ear were significantly higher when fertilizers were applied”

✓ located verbatim in the source · abstract, characters 999–1110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

With fertilizers, the 1000-seed weight of corn rose from 231 to 278.6 g (about 19%) in the first year.

Treatment
using fertilizerse5
Outcome
weight of 1000 seedse5
Direction
increasee5
Value
from 231 to 278.6 g (about 19%)e5
Setting
in the first year of the experimentse5

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The results of the experiments on corn crops for grain also showed the dependence of the productivity elements and the structure of the crop on the amount of fertilizers applied”

✓ located verbatim in the source · abstract, characters 1112–1289 · show in text ↑
e5

“The increase in the weight of 1000 seeds, when using fertilizers, in the first year of the experiments was from 231 to 278.6 g (about 19%); in the second year – from 213 to 250.4 g (about 14%); in the third – from 224 to 269.7 (about 19%)”

✓ located verbatim in the source · abstract, characters 1291–1529 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

With fertilizers, the 1000-seed weight of corn rose from 213 to 250.4 g (about 14%) in the second year.

Treatment
using fertilizerse5
Outcome
weight of 1000 seedse5
Direction
increasee5
Value
from 213 to 250.4 g (about 14%)e5
Setting
in the second yeare5

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The results of the experiments on corn crops for grain also showed the dependence of the productivity elements and the structure of the crop on the amount of fertilizers applied”

✓ located verbatim in the source · abstract, characters 1112–1289 · show in text ↑
e5

“The increase in the weight of 1000 seeds, when using fertilizers, in the first year of the experiments was from 231 to 278.6 g (about 19%); in the second year – from 213 to 250.4 g (about 14%); in the third – from 224 to 269.7 (about 19%)”

✓ located verbatim in the source · abstract, characters 1291–1529 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

With fertilizers, the 1000-seed weight of corn rose from 224 to 269.7 (about 19%) in the third year.

Treatment
using fertilizerse5
Outcome
weight of 1000 seedse5
Direction
increasee5
Value
from 224 to 269.7 (about 19%)e5
Setting
in the thirde5

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The results of the experiments on corn crops for grain also showed the dependence of the productivity elements and the structure of the crop on the amount of fertilizers applied”

✓ located verbatim in the source · abstract, characters 1112–1289 · show in text ↑
e5

“The increase in the weight of 1000 seeds, when using fertilizers, in the first year of the experiments was from 231 to 278.6 g (about 19%); in the second year – from 213 to 250.4 g (about 14%); in the third – from 224 to 269.7 (about 19%)”

✓ located verbatim in the source · abstract, characters 1291–1529 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Corn cob length increased with fertilizer application, reaching 18.2 cm on average over three years.

Treatment
application of fertilizerse6
Outcome
length of the cobse6
Direction
increasede6
Value
18.2 cme6
Qualifier
on average over three yearse6

Not reportedComparator

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“The results of the experiments on corn crops for grain also showed the dependence of the productivity elements and the structure of the crop on the amount of fertilizers applied”

✓ located verbatim in the source · abstract, characters 1112–1289 · show in text ↑
e6

“The length of the cobs, on average over three years, increased with the application of fertilizers and reached 18.2 cm”

✓ located verbatim in the source · abstract, characters 1531–1649 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Weather conditions had a positive effect on the formation of winter barley productivity elements.

Taxon
winter barleyHordeum vulgaree1
Treatment
Weather conditionse7
Outcome
formation of productivity elementse7
Direction
positivee7

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“in winter barley crops, in the variants with the application of fertilizers, the indicators of productivity elements were higher than in the control ones”

✓ located verbatim in the source · abstract, characters 631–784 · show in text ↑
e7

“Weather conditions also had a positive effect on the formation of productivity elements, which ultimately led to an increase in crop yields”

✓ located verbatim in the source · abstract, characters 1651–1790 · show in text ↑

fertilization · yield · Hordeum vulgare (barley)Positive and negative results

550 papers: 473 positive, 77 negative or no effect

472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

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fertilization · yield · Zea mays (maize)Positive and negative results

3,908 papers: 3,485 positive, 423 negative or no effect

3,484 papers in the same direction as this paper · 338 in the opposite direction · 85 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

3,904 papers more in this group

See all 3,908 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.