Abstract
BACKGROUND: The use of organic cultivation with manures does not avoid the risk of high nitrate concentrations if nutrient management is inefficient. So we studied the influence of three organic manures combined or not with additional chemical fertilisers on growth and yield of sweet pepper (Capsicum annuum L.), and on the soil and plant N concentrations. RESULTS: After 3 years of organic cultivation, poultry manure caused the highest soil pollution. The evolution of nitrate and organic matter in soil showed a pattern close to that of plant growth. The addition of mineral fertiliser increased vegetative growth and yield, and a cumulative season effect was observed. In treatments with no additional mineral fertiliser N translocation from leaves to fruits happened. A cumulative effect of seasons on fruit quality and a reduction near to 30% was observed in the first fruit quality category after 3 years. The fruit vitamin C content was reduced by increasing N fertilisation. CONCLUSION: The effects of organic fertiliser on soil and plant growth and yield depended on the type of manure used, its rate, and consecutive crop seasons. Horse manure gave the best combination of agricultural and environmental characteristics and could be used without additional fertigation.
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Claims 11
Claim · model-written summary
Poultry manure produced the highest soil pollution after three years.
- Taxon
- sweet pepper
Capsicum annuume0 - Treatment
- poultry manuree1
- Outcome
- soil pollutione1
- Direction
- higheste1
- Qualifier
- After 3 years of organic cultivatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“After 3 years of organic cultivation, poultry manure caused the highest soil pollution”
Claim · model-written summary
Soil nitrate and organic matter followed a pattern close to plant growth.
- Taxon
- sweet pepperCapsicum annuume0
- Outcome
- plant growthe1
- Setting
- nitrate and organic matter in soile1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“The evolution of nitrate and organic matter in soil showed a pattern close to that of plant growth”
Claim · model-written summary
Mineral fertilizer increased vegetative growth.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- mineral fertilisere1
- Outcome
- vegetative growthe1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“The addition of mineral fertiliser increased vegetative growth and yield”
Claim · model-written summary
Mineral fertilizer increased yield.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- mineral fertilisere1
- Outcome
- yielde1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“The addition of mineral fertiliser increased vegetative growth and yield”
Claim · model-written summary
The mineral fertilizer result showed a cumulative season effect.
- Taxon
- sweet pepperCapsicum annuume0
- Outcome
- cumulative season effecte1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“a cumulative season effect was observed”
Claim · model-written summary
Nitrogen moved from leaves to fruits without additional mineral fertilizer.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- no additional mineral fertilisere1
- Outcome
- N translocation from leaves to fruitse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“In treatments with no additional mineral fertiliser N translocation from leaves to fruits happened”
Claim · model-written summary
The first fruit quality category fell nearly 30% after three years.
- Taxon
- sweet pepperCapsicum annuume0
- Outcome
- first fruit quality categorye1
- Direction
- reductione1
- Value
- near to 30%e1
- Qualifier
- after 3 yearse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“a reduction near to 30% was observed in the first fruit quality category after 3 years”
Claim · model-written summary
Increasing nitrogen fertilization reduced fruit vitamin C content.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- increasing N fertilisatione1
- Outcome
- fruit vitamin C contente1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“The fruit vitamin C content was reduced by increasing N fertilisation”
Claim · model-written summary
Organic fertilizer effects on soil, growth and yield depended on manure type, rate and crop season.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- type of manure used, its rate, and consecutive crop seasonse1
- Outcome
- plant growth and yielde1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“The effects of organic fertiliser on soil and plant growth and yield depended on the type of manure used, its rate, and consecutive crop seasons”
Claim · model-written summary
Horse manure gave the best agricultural and environmental combination.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- Horse manuree1
- Outcome
- agricultural and environmental characteristicse1
- Direction
- beste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“Horse manure gave the best combination of agricultural and environmental characteristics”
Claim · model-written summary
The authors recommend horse manure without additional fertigation.
- Taxon
- sweet pepperCapsicum annuume0
- Treatment
- Horse manuree1
- Outcome
- could be used without additional fertigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet pepper (Capsicum annuum L.)”
e1“Horse manure gave the best combination of agricultural and environmental characteristics and could be used without additional fertigation”
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See all 168 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.