Abstract
The present paper illustrates the results obtained on oat (Avena sativa L.), Somesan variety, concerning growth, grains and straw yields and also of macroelements accumulation (N, P, K, Ca, Mg) when various doses of sewage sludge were applied associated or not with mineral fertilization. Sewage sludge application produced significant increase of plant height starting with equivalent dose of 100 kg N/ha, meanwhile the highest height was observed in the case of plants fertilized with doses equivalent with 300 and 400 kg N/ha. With the increase of sewage sludge dose it has been observed the straw yield increase, this being statistically assured starting with sewage sludge equivalent dose of 100 kg N/ha. Sewage sludge fertilization, accompanied or not by mineral fertilizers, evidenced that nitrogen contents in oat grains increases with applied sewage dose, being significant from an equivalent dose of 200 kg N/ha. Low sewage doses equivalent with 200-300 kg K/ha evidenced for potassium concentration in oat grains a significant decrease in comparison with untreated variant, meanwhile mineral fertilization generated a significant increase of potassium levels in oat grains. Calcium contents in oat grains present a significant increase after sewage sludge fertilization and at a dose equivalent with 600 kg N/ha, the calcium levels (0.24%) increased 3 times in comparison with untreated variant (0.08%). Sewage sludge fertilization, associated or not with mineral fertilizers, did not produced significant changes of magnesium levels in oat grains, found concentrations being considered as normal values.
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Claims 8
Claim · model-written summary
Sewage sludge increased oat height significantly from 100 kg N/ha.
- Taxon
- oat
Avena sativat0 - Treatment
- sewage sludgee0
- Outcome
- plant heighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sewage sludge application produced significant increase of plant height starting with equivalent dose of 100 kg N/ha”
t0“oat”
Claim · model-written summary
Height was greatest at 300 and 400 kg N/ha equivalent doses.
- Taxon
- oatAvena sativat0
- Outcome
- heighte0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest height was observed in the case of plants fertilized with doses equivalent with 300 and 400 kg N/ha.”
t0“oat”
Claim · model-written summary
Straw yield increased with sludge dose significantly from 100 kg N/ha.
- Taxon
- oatAvena sativat0
- Treatment
- sewage sludge dosee0
- Outcome
- straw yielde0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of sewage sludge dose it has been observed the straw yield increase, this being statistically assured starting with sewage sludge equivalent dose of 100 kg N/ha.”
t0“oat”
Claim · model-written summary
Grain nitrogen increased with sludge dose significantly from 200 kg N/ha.
- Taxon
- oatAvena sativae0
- Treatment
- applied sewage dosee0
- Outcome
- nitrogen contents in oat grainse0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen contents in oat grains increases with applied sewage dose, being significant from an equivalent dose of 200 kg N/ha.”
Claim · model-written summary
Low sludge doses significantly decreased potassium in oat grains versus untreated.
- Taxon
- oatAvena sativae0
- Treatment
- Low sewage doses equivalent with 200-300 kg K/hae0
- Outcome
- potassium concentration in oat grainse0
- Direction
- decreasee0
- Comparator
- untreated variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Low sewage doses equivalent with 200-300 kg K/ha evidenced for potassium concentration in oat grains a significant decrease in comparison with untreated variant”
Claim · model-written summary
Mineral fertilizer significantly increased oat grain potassium.
- Taxon
- oatAvena sativae0
- Treatment
- mineral fertilizatione0
- Outcome
- potassium levels in oat grainse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mineral fertilization generated a significant increase of potassium levels in oat grains.”
Claim · model-written summary
Sludge significantly increased oat grain calcium, reaching 0.24% at 600 kg N/ha versus 0.08% untreated.
- Taxon
- oatAvena sativae0
- Treatment
- sewage sludge fertilizatione0
- Outcome
- Calcium contents in oat grainse0
- Direction
- increasee0
- Value
- 0.24%e0
- Qualifier
- 0.08%e0
- Comparator
- untreated variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Calcium contents in oat grains present a significant increase after sewage sludge fertilization and at a dose equivalent with 600 kg N/ha, the calcium levels (0.24%) increased 3 times in comparison with untreated variant (0.08%).”
Claim · model-written summary
Sludge with or without mineral fertilizers did not significantly change grain magnesium.
- Taxon
- oatAvena sativae0
- Treatment
- Sewage sludge fertilizatione0
- Outcome
- magnesium levels in oat grainse0
- Direction
- did not produced significant changese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sewage sludge fertilization, associated or not with mineral fertilizers, did not produced significant changes of magnesium levels in oat grains”
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See all 5 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.