Abstract
In field trials, treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha were combined with mulch treatments in factorialtrials carried out under tropicallowland conditions. Nutrient levels of leaves and fruits were analysed. Crop performance was monitored as plant height, branching and fruiting time, and crop health as incidence and severity of pests and diseases. Crop production was measured as yield of healthy fruits, mean weight of healthy fruits, and mid-harvesttime. In potexperiments in a growth chamber, effects of nitrogen application rates on severity of Cercospora leaf spot were studied. Nitrogen fertilization improved plant growth, but did not influence fruiting time. Increasing nitrogen application rates increased Cercospora leaf spot in growth chamber trials, and Cercospora leaf spot and anthracnose fruit rot in field trials. Negative correlations between nitrogen levels in leaves and incidence of blossom mould and thrips were found. Moderate nitrogen applications (150 kg N/ha) gave best yields in most field trials. Mean fruit weight and mid-harvest time were not affected by the amount of nitrogen applied. With increasing nitrogen application rates, higher nitrogen levels in both leaves and fruits were found. Moderate amounts of nitrogen, balanced with proper amounts of phosphorus and potassium are recommended as a fertilizer component of integrated crop management.
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Claims 11
Claim · model-written summary
Nitrogen fertilization improved plant growth of hot pepper
- Taxon
- hot pepper
Capsicum frutescense1 - Treatment
- Nitrogen fertilizatione2
- Outcome
- plant growthe2
- Direction
- improvede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e2“Nitrogen fertilization improved plant growth, but did not influence fruiting time”
Claim · model-written summary
Nitrogen fertilization did not influence fruiting time of hot pepper
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- Nitrogen fertilizatione2
- Outcome
- fruiting timee2
- Direction
- did not influencee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e2“Nitrogen fertilization improved plant growth, but did not influence fruiting time”
Claim · model-written summary
Increasing nitrogen application rates increased Cercospora leaf spot in growth chamber trials
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- Increasing nitrogen application ratese3
- Interactor
- Cercospora
Cercosporae3pathogen - Outcome
- Cercospora leaf spote3
- Direction
- increasede3
- Setting
- growth chamber trialse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e3“Increasing nitrogen application rates increased Cercospora leaf spot in growth chamber trials, and Cercospora leaf spot and anthracnose fruit rot in field trials”
Claim · model-written summary
Increasing nitrogen application rates increased Cercospora leaf spot in field trials
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- Increasing nitrogen application ratese3
- Interactor
- CercosporaCercosporae3pathogen
- Outcome
- Cercospora leaf spote3
- Direction
- increasede3
- Setting
- field trialse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e3“Increasing nitrogen application rates increased Cercospora leaf spot in growth chamber trials, and Cercospora leaf spot and anthracnose fruit rot in field trials”
Claim · model-written summary
Increasing nitrogen application rates increased anthracnose fruit rot in field trials
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- Increasing nitrogen application ratese3
- Outcome
- anthracnose fruit rote3
- Direction
- increasede3
- Setting
- field trialse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e3“Increasing nitrogen application rates increased Cercospora leaf spot in growth chamber trials, and Cercospora leaf spot and anthracnose fruit rot in field trials”
Claim · model-written summary
Leaf nitrogen level is negatively correlated with incidence of blossom mould in hot pepper
- Taxon
- hot pepperCapsicum frutescense1
- Organ / stage
- leavese4
- Compound
- nitrogene4
- Outcome
- incidence of blossom moulde4
- Direction
- Negative correlationse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e4“Negative correlations between nitrogen levels in leaves and incidence of blossom mould and thrips were found”
Claim · model-written summary
Leaf nitrogen level is negatively correlated with thrips incidence in hot pepper
- Taxon
- hot pepperCapsicum frutescense1
- Organ / stage
- leavese4
- Compound
- nitrogene4
- Outcome
- incidencee4
- Direction
- Negative correlationse4
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e4“Negative correlations between nitrogen levels in leaves and incidence of blossom mould and thrips were found”
Claim · model-written summary
Moderate nitrogen applications (150 kg N/ha) gave the best yields of hot pepper in most field trials
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- Moderate nitrogen applications (150 kg N/ha)e5
- Outcome
- yieldse5
- Direction
- beste5
- Setting
- field trialse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e5“Moderate nitrogen applications (150 kg N/ha) gave best yields in most field trials”
Claim · model-written summary
The amount of nitrogen applied did not affect mean fruit weight or mid-harvest time of hot pepper
- Taxon
- hot pepperCapsicum frutescense1
- Treatment
- the amount of nitrogen appliede6
- Outcome
- Mean fruit weight and mid-harvest timee6
- Direction
- not affectede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e6“Mean fruit weight and mid-harvest time were not affected by the amount of nitrogen applied”
Claim · model-written summary
Increasing nitrogen application rates raised nitrogen levels in hot pepper leaves and fruits
- Taxon
- hot pepperCapsicum frutescense1
- Organ / stage
- leaves and fruitse7
- Treatment
- With increasing nitrogen application ratese7
- Outcome
- nitrogen levelse7
- Direction
- highere7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e7“With increasing nitrogen application rates, higher nitrogen levels in both leaves and fruits were found”
Claim · model-written summary
Moderate amounts of nitrogen balanced with phosphorus and potassium are recommended as a fertilizer component of integrated crop management of hot pepper
- Taxon
- hot pepperCapsicum frutescense1
- Outcome
- Moderate amounts of nitrogene2
- Qualifier
- balanced with proper amounts of phosphorus and potassiume2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“treatments of hot pepper with various nitrogen application rates between 0 and 500 kg N/ha”
e2“Moderate amounts of nitrogen, balanced with proper amounts of phosphorus and potassium are recommended as a fertilizer component of integrated crop management”
The same questions in other papers
nitrogen · yield · Capsicum frutescens (hot pepper)Positive and negative results
11 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
10 papers more in this group
See all 14 papers →fertilization · growth · Capsicum frutescens (hot pepper)Positive and negative results
23 papers in the same direction as this paper · 4 in the opposite direction
- positive
- no effect
- no effect
24 papers more in this group
See all 28 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.