Paper · 2024 · The Agrarian Scientific Journal

The influence of agrochemicals on photosynthetic activity and the yield of grain corn hybrids in the Lower Volga region

Anatoly Fedorovich Druzhkin; Daniil Andreevich Dubrovin; Natalia Viktorovna Nikolaichenko

7
claims
16
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

The maximum leaf surface area on average over three years of research was with the combined application of mineral fertilizers (NPK) and growth-stimulating preparations (Agree`s Boron, Agree`s Aminovit) - 25.8 thousand m2/ha for the hybrid Krasnodar 385 MV. Significant variations in net photosynthetic productivity indicators were in corn hybrids depending on the experimental options used. The net productivity of photosynthesis of corn hybrids varied from 4.6 to 6.7 g/m2 day. The hybrid Krasnodar 385 MV was characterized by the minimum values of this trait; the maximum value had the hybrid ROSS 199 MV. The maximum yield of grain corn hybrids on average over three years was after the application of NPK + Agree`s Boron + Agree`s Aminovit. Grain yield varied from 5.59 to 6.15 t/ha.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined NPK and growth-stimulating preparations gave the maximum leaf surface area in hybrid Krasnodar 385 MV, at 25.8 thousand m2/ha.

Taxon
grain corn hybridst0
Material
Krasnodar 385 MVe1
Treatment
combined application of mineral fertilizers (NPK) and growth-stimulating preparationse1
Outcome
maximum leaf surface areae1
Direction
maximume1
Value
25.8 thousand m2/hae1
Setting
Lower Volga regiont0

Not reportedComparator

Verbatim

e1

“The maximum leaf surface area on average over three years of research was with the combined application of mineral fertilizers (NPK) and growth-stimulating preparations (Agree`s Boron, Agree`s Aminovit) - 25.8 thousand m2/ha for the hybrid Krasnodar 385 MV”

✓ located verbatim in the source · abstract, characters 0–256 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Net photosynthetic productivity of corn hybrids differed significantly depending on the experimental options.

Taxon
corn hybridse2
Treatment
experimental optionse2
Outcome
net photosynthetic productivity indicatorse2
Setting
Lower Volga regiont0

Not reportedComparatorDirection

Verbatim

e2

“Significant variations in net photosynthetic productivity indicators were in corn hybrids depending on the experimental options used”

✓ located verbatim in the source · abstract, characters 258–390 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Hybrid Krasnodar 385 MV had the minimum net productivity of photosynthesis among the corn hybrids.

Taxon
grain corn hybridst0
Material
Krasnodar 385 MVe4
Outcome
net productivity of photosynthesise3
Direction
minimume4
Setting
Lower Volga regiont0

Verbatim

e3

“The net productivity of photosynthesis of corn hybrids varied from 4.6 to 6.7 g/m2 day”

✓ located verbatim in the source · abstract, characters 392–478 · show in text ↑
e4

“The hybrid Krasnodar 385 MV was characterized by the minimum values of this trait; the maximum value had the hybrid ROSS 199 MV”

✓ located verbatim in the source · abstract, characters 480–607 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Hybrid ROSS 199 MV had the maximum net productivity of photosynthesis among the corn hybrids.

Taxon
grain corn hybridst0
Material
ROSS 199 MVe4
Outcome
net productivity of photosynthesise3
Direction
maximume4
Setting
Lower Volga regiont0

Verbatim

e3

“The net productivity of photosynthesis of corn hybrids varied from 4.6 to 6.7 g/m2 day”

✓ located verbatim in the source · abstract, characters 392–478 · show in text ↑
e4

“The hybrid Krasnodar 385 MV was characterized by the minimum values of this trait; the maximum value had the hybrid ROSS 199 MV”

✓ located verbatim in the source · abstract, characters 480–607 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Net productivity of photosynthesis of corn hybrids ranged from 4.6 to 6.7 g/m2 day.

Taxon
corn hybridse3
Outcome
net productivity of photosynthesise3
Value
4.6 to 6.7 g/m2 daye3
Setting
Lower Volga regiont0

Verbatim

e3

“The net productivity of photosynthesis of corn hybrids varied from 4.6 to 6.7 g/m2 day”

✓ located verbatim in the source · abstract, characters 392–478 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined NPK with Agree`s Boron and Agree`s Aminovit gave the maximum grain yield of corn hybrids.

Taxon
grain corn hybridse5
Treatment
application of NPK + Agree`s Boron + Agree`s Aminovite5
Outcome
yielde5
Direction
maximume5
Setting
Lower Volga regiont0

Not reportedComparator

Verbatim

e5

“The maximum yield of grain corn hybrids on average over three years was after the application of NPK + Agree`s Boron + Agree`s Aminovit”

✓ located verbatim in the source · abstract, characters 609–744 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Grain yield of corn hybrids varied from 5.59 to 6.15 t/ha.

Taxon
grain corn hybridst0
Outcome
Grain yielde6
Value
5.59 to 6.15 t/hae6
Setting
Lower Volga regiont0

Verbatim

e6

“Grain yield varied from 5.59 to 6.15 t/ha”

✓ located verbatim in the source · abstract, characters 746–787 · show in text ↑
t0

“the yield of grain corn hybrids in the Lower Volga region”

✓ located verbatim in the source · title, characters 62–119 · show in text ↑

boron atom · yield · Zea mays (maize)Results differ

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

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

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  1. negative
  2. no effect
  3. negative

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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.