Abstract
For the first time in international practice, agricultural experiments were carried out to introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers into ocherous volcanic soils (Andosols Acroxic). According to various variables of field experiment, yield increases were obtained relative to the background: for potatoes (Solanum tuberosum) by 31–63% in 2014, by 7–19% in 2017 and by 14–31% in 2018; on timothy (Phleum pretense) by 21-50% in 2015. Production experience in the cultivation of annual forage grasses in 2016 showed an increase in yield by 32%. In addition, the crude protein in forage grasses and the content of starch potato tubers also increase, and potatoes have better resistance to potato diseases.
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Claims 8
Claim · model-written summary
Volcanic ash with mineral fertilizers raised potato yield by 31-63% relative to the background in 2014.
- Taxon
- potatoes
Solanum tuberosume1 - Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- yielde1
- Direction
- increasese1
- Value
- 31–63%e2
- Qualifier
- in 2014e2
- Comparator
- the backgrounde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“yield increases were obtained relative to the background: for potatoes (Solanum tuberosum)”
e2“by 31–63% in 2014”
Claim · model-written summary
Volcanic ash with mineral fertilizers raised potato yield by 7-19% relative to the background in 2017.
- Taxon
- potatoesSolanum tuberosume1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- yielde1
- Direction
- increasese1
- Value
- 7–19%e2
- Qualifier
- in 2017e2
- Comparator
- the backgrounde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“yield increases were obtained relative to the background: for potatoes (Solanum tuberosum)”
e2“by 7–19% in 2017”
Claim · model-written summary
Volcanic ash with mineral fertilizers raised potato yield by 14-31% relative to the background in 2018.
- Taxon
- potatoesSolanum tuberosume1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- yielde1
- Direction
- increasese1
- Value
- 14–31%e2
- Qualifier
- in 2018e2
- Comparator
- the backgrounde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“yield increases were obtained relative to the background: for potatoes (Solanum tuberosum)”
e2“by 14–31% in 2018”
Claim · model-written summary
Volcanic ash with mineral fertilizers raised timothy yield by 21-50% relative to the background in 2015.
- Taxon
- timothy
Phleum pratensee2 - Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- yielde1
- Direction
- increasese1
- Value
- 21-50%e2
- Qualifier
- in 2015e2
- Comparator
- the backgrounde1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“yield increases were obtained relative to the background”
e2“on timothy (Phleum pretense) by 21-50% in 2015”
Claim · model-written summary
Production experience with annual forage grasses in 2016 showed a 32% yield increase.
- Taxon
- annual forage grassese1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- yielde1
- Direction
- increasee1
- Value
- 32%e1
- Qualifier
- in 2016e1
Not reportedComparator
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“Production experience in the cultivation of annual forage grasses in 2016 showed an increase in yield by 32%”
Claim · model-written summary
Crude protein in forage grasses also increased.
- Taxon
- forage grassese1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- crude proteine1
- Direction
- increasee1
Not reportedComparator
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“the crude protein in forage grasses and the content of starch potato tubers also increase”
Claim · model-written summary
Starch content of potato tubers also increased.
- Taxon
- potatoSolanum tuberosume1
- Organ / stage
- tuberse1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- content of starche1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“the crude protein in forage grasses and the content of starch potato tubers also increase”
Claim · model-written summary
Potatoes had better resistance to potato diseases.
- Taxon
- potatoesSolanum tuberosume1
- Treatment
- volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizerse0
- Outcome
- resistance to potato diseasese1
- Direction
- bettere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“introduce volcanic ash from the Kamchatka Peninsula in combination with conventional mineral fertilizers”
e1“potatoes have better resistance to potato diseases”
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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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See all 450 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.