Abstract
Abstract The study presents the results of research on the acute toxicity of a fertilizer formulas made of spent coffee ground (SCG) with addition of ash from low-temperature combustion of biomass or ash with an admixture of magnesium sulphate and blood meal. The experimental fertilizer formulas included also rape oil used as a plasticizer for controlling the nutrients release from the fertiliser. Mustard (Sinapis alba L.), oats (Avena sativa sp. L.), cucumber (Cucumis sativus L.) and cress (Lepidium sativum L.) were used as test plants species in the experiment. The toxicity tests were performed using a standard procedure of 72 h with the use of Phytotoxkit microbiotest and fertilizer application of 2.5; 5 and 10% (v/v). The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer. During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values. From the tested plant species, cress (Lepidium sativum L.) turned out to be the most sensitive to the applied fertilizers, the least was cucumber (Cucumis sativus L.) for which only a small inhibition of root system growth was observed. The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.
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Claims 14
Claim · model-written summary
Mustard acute toxicity increased with fertilizer dose.
- Taxon
- Sinapis alba L.
Sinapis albae1 - Treatment
- applied doses of the fertilizere0
- Outcome
- acute toxicitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer.”
e1“Mustard (Sinapis alba L.)”
Claim · model-written summary
Oat acute toxicity increased with fertilizer dose.
- Taxon
- Avena sativa sp. L.
Avena sativae1 - Treatment
- applied doses of the fertilizere0
- Outcome
- acute toxicitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer.”
e1“oats (Avena sativa sp. L.)”
Claim · model-written summary
Cucumber acute toxicity increased with fertilizer dose.
- Taxon
- Cucumis sativus L.
Cucumis sativuse1 - Treatment
- applied doses of the fertilizere0
- Outcome
- acute toxicitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer.”
e1“cucumber (Cucumis sativus L.) and cress”
Claim · model-written summary
Cress acute toxicity increased with fertilizer dose.
- Taxon
- Lepidium sativum L.
Lepidium sativume1 - Treatment
- applied doses of the fertilizere0
- Outcome
- acute toxicitye0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The obtained results indicated an increase of acute toxicity for all tested plant species, proportionally to the applied doses of the fertilizer.”
e1“cress (Lepidium sativum L.) were used”
Claim · model-written summary
Mustard growth inhibition was strongest at 10% fertilizer over 72 hours, especially with high salinity or low pH.
- Taxon
- Sinapis alba L.Sinapis albae1
- Treatment
- 10% of the tested fertilizerse0
- Outcome
- seedling growthe0
- Direction
- strongest inhibitione0
- Qualifier
- considerable level of salinity or low pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values.”
e1“Mustard (Sinapis alba L.)”
Claim · model-written summary
Oat growth inhibition was strongest at 10% fertilizer over 72 hours, especially with high salinity or low pH.
- Taxon
- Avena sativa sp. L.Avena sativae1
- Treatment
- 10% of the tested fertilizerse0
- Outcome
- seedling growthe0
- Direction
- strongest inhibitione0
- Qualifier
- considerable level of salinity or low pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values.”
e1“oats (Avena sativa sp. L.)”
Claim · model-written summary
Cucumber growth inhibition was strongest at 10% fertilizer over 72 hours, especially with high salinity or low pH.
- Taxon
- Cucumis sativus L.Cucumis sativuse1
- Treatment
- 10% of the tested fertilizerse0
- Outcome
- seedling growthe0
- Direction
- strongest inhibitione0
- Qualifier
- considerable level of salinity or low pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values.”
e1“cucumber (Cucumis sativus L.) and cress”
Claim · model-written summary
Cress growth inhibition was strongest at 10% fertilizer over 72 hours, especially with high salinity or low pH.
- Taxon
- Lepidium sativum L.Lepidium sativume1
- Treatment
- 10% of the tested fertilizerse0
- Outcome
- seedling growthe0
- Direction
- strongest inhibitione0
- Qualifier
- considerable level of salinity or low pH valuese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During the 72 h period, the strongest inhibition of seedling growth was recorded in samples consisting of 10% of the tested fertilizers, particularly when they showed considerable level of salinity or low pH values.”
e1“cress (Lepidium sativum L.) were used”
Claim · model-written summary
Cress was the most fertilizer-sensitive species.
- Taxon
- Lepidium sativum L.Lepidium sativume0
- Outcome
- most sensitivee0
- Direction
- moste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cress (Lepidium sativum L.) turned out to be the most sensitive to the applied fertilizers”
Claim · model-written summary
Cucumber was least sensitive, with only small root growth inhibition.
- Taxon
- Cucumis sativus L.Cucumis sativuse0
- Outcome
- root system growthe0
- Direction
- inhibitione0
- Qualifier
- only a small inhibitione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the least was cucumber (Cucumis sativus L.) for which only a small inhibition of root system growth was observed.”
Claim · model-written summary
Reduced oxygen and excessive substrate salinity could explain mustard root inhibition.
- Taxon
- Sinapis alba L.Sinapis albae1
- Outcome
- inhibited growth of rootse0
- Qualifier
- reduced oxygen access and excessive salinity of the substratume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.”
e1“Mustard (Sinapis alba L.)”
Claim · model-written summary
Reduced oxygen and excessive substrate salinity could explain oat root inhibition.
- Taxon
- Avena sativa sp. L.Avena sativae1
- Outcome
- inhibited growth of rootse0
- Qualifier
- reduced oxygen access and excessive salinity of the substratume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.”
e1“oats (Avena sativa sp. L.)”
Claim · model-written summary
Reduced oxygen and excessive substrate salinity could explain cucumber root inhibition.
- Taxon
- Cucumis sativus L.Cucumis sativuse1
- Outcome
- inhibited growth of rootse0
- Qualifier
- reduced oxygen access and excessive salinity of the substratume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.”
e1“cucumber (Cucumis sativus L.) and cress”
Claim · model-written summary
Reduced oxygen and excessive substrate salinity could explain cress root inhibition.
- Taxon
- Lepidium sativum L.Lepidium sativume1
- Outcome
- inhibited growth of rootse0
- Qualifier
- reduced oxygen access and excessive salinity of the substratume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibited growth of roots could be attributed to a reduced oxygen access and excessive salinity of the substratum caused by the applied additives.”
e1“cress (Lepidium sativum L.) were used”
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See all 202 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.