Paper · 2025 · Brazilian Journal of Biology

Biofertilization with beneficial microorganisms and low rates of chemical fertilization in potatoes (Solanum tuberosum L.) management for sustainable agriculture

R. H. Tirado-Malaver; R. Tirado-Lara

7
claims
14
verbatim quotes
1
citations
1
research areas
✓
Open access · cc-by

Abstract

Potato is considered one of the most important crops in the world. However, biotic and abiotic factors can considerably affect the production of this crop and increase production costs, the biofertilizers are environmentally friendly alternatives that could reduce these problems. The objective was to determine the biofertilizer activity of Trichoderma harzianum and Bacillus subtilis as a sustainable alternative to reduce chemical fertilization in potato productivity. In this research, two potato varieties (commercial variety Yungay and the improved variety 302295.32), two beneficial microorganisms (Trichoderma harzianum and Bacillus subtilis both at a dose of 1 kg ha-1) and three doses of chemical fertilization (20, 50 and 100% NPK) and a control (commercial variety Yungay at a dose of 100% NPK) were used in a 2x2x3+1 factorial scheme. The findings obtained reported that the use of the variety CIP302295.32 biofertilized with T. harzianum can obtain similar results using less chemical fertilizers compared to high NPK doses. The highest biometric parameters in potato were achieved in the treatments, variety CIP 302290.11 inoculated with T. harzianum at doses of 50 and 100% of NPK, so that at a dose 50% less fertilizer produced an increase of 24. 39% in the number of tubers per plant compared to the control and in the number of commercial tubers per plant the increase was 50.31%. This same treatment had a significant effect on yield parameters, increasing by 42.17% in total yield and 49.09% in commercial yield compared to the control. Therefore, this research demonstrated that biofertilization of the improved variety 302295.32 with T. harzianum at a dose of 50% NPK is a valuable alternative to increase the yield of sustainable potato cultivation in Peruvian Andean.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potato variety CIP302295.32 biofertilized with T. harzianum gave similar results with less chemical fertilizer than high NPK doses.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Material
CIP302295.32e1
Treatment
biofertilized with T. harzianume1
Interactor
T. harzianumTrichoderma harzianume1symbiont
Outcome
similar resultse1
Direction
no_changeinferrede1
Comparator
high NPK dosese1

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e1

“the use of the variety CIP302295.32 biofertilized with T. harzianum can obtain similar results using less chemical fertilizers compared to high NPK doses”

✓ located verbatim in the source · abstract, characters 884–1037 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Potato variety CIP 302290.11 inoculated with T. harzianum at 50 and 100% NPK had the highest biometric parameters.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Material
CIP 302290.11e1
Treatment
inoculated with T. harzianum at doses of 50 and 100% of NPKe1
Interactor
T. harzianumTrichoderma harzianume1symbiont
Outcome
biometric parameterse1
Direction
higheste1

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e1

“The highest biometric parameters in potato were achieved in the treatments, variety CIP 302290.11 inoculated with T. harzianum at doses of 50 and 100% of NPK”

✓ located verbatim in the source · abstract, characters 1039–1196 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 50% reduced fertilizer dose with the biofertilizer increased the number of tubers per plant by 24.39% compared with the control.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Treatment
50% less fertilizere2
Outcome
number of tubers per plante2
Direction
increasee2
Value
24. 39%e2
Comparator
controle2

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e2

“so that at a dose 50% less fertilizer produced an increase of 24. 39% in the number of tubers per plant compared to the control and in the number of commercial tubers per plant the increase was 50.31%”

✓ located verbatim in the source · abstract, characters 1198–1398 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 50% reduced fertilizer dose with the biofertilizer increased the number of commercial tubers per plant by 50.31% compared with the control.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Treatment
50% less fertilizere2
Outcome
number of commercial tubers per plante2
Direction
increasee2
Value
50.31%e2
Comparator
controle2

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e2

“so that at a dose 50% less fertilizer produced an increase of 24. 39% in the number of tubers per plant compared to the control and in the number of commercial tubers per plant the increase was 50.31%”

✓ located verbatim in the source · abstract, characters 1198–1398 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same biofertilized treatment increased total yield by 42.17% compared with the control.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Treatment
This same treatmente3
Outcome
total yielde3
Direction
increasinge3
Value
42.17%e3
Comparator
controle3

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e3

“This same treatment had a significant effect on yield parameters, increasing by 42.17% in total yield and 49.09% in commercial yield compared to the control”

✓ located verbatim in the source · abstract, characters 1400–1556 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The same biofertilized treatment increased commercial yield by 49.09% compared with the control.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Treatment
This same treatmente3
Outcome
commercial yielde3
Direction
increasinge3
Value
49.09%e3
Comparator
controle3

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e3

“This same treatment had a significant effect on yield parameters, increasing by 42.17% in total yield and 49.09% in commercial yield compared to the control”

✓ located verbatim in the source · abstract, characters 1400–1556 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Biofertilization of the improved variety 302295.32 with T. harzianum at 50% NPK is a valuable alternative to increase potato yield.

Taxon
Solanum tuberosum L.Solanum tuberosumt0
Material
302295.32e4
Interactor
T. harzianumTrichoderma harzianume4symbiont
Outcome
yielde4
Setting
Peruvian Andeane4

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · InteractorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

t0

“potatoes (Solanum tuberosum L.)”

✓ located verbatim in the source · title, characters 91–122 · show in text ↑
e4

“this research demonstrated that biofertilization of the improved variety 302295.32 with T. harzianum at a dose of 50% NPK is a valuable alternative to increase the yield of sustainable potato cultivation in Peruvian Andean”

✓ located verbatim in the source · abstract, characters 1569–1791 · show in text ↑

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fertilization · yield · Solanum tuberosum (potato)Positive and negative results

450 papers: 394 positive, 56 negative or no effect

393 papers in the same direction as this paper · 48 in the opposite direction · 8 reporting no difference from an alternative

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