Abstract
Two field experiments were conducted for two consecutive seasons inside plastic houses to evaluate bell pepper (Capsicum annuum) response to nitrogen fertigation. Nitrogen fertilizers were applied through irrigation water at rates of zero, 150, 250, and 350 N kg ha‐1. The crops were irrigated in weekly bases with the amount of water equivalent to 80% of the E Pan reading. All treatments were replicated four times in a randomized complete block design. Five plants were sampled from each experimental unit at 30, 60, 90, 120, 150, and 180 days after planting. Growth rate, nutrient uptake and yield were determined. The results indicate that the yield and marketable number of fruits in both seasons increased with the addition of nitrogen. The highest yield was obtained with the addition of 150 kg N ha‐1. The maximum growth rate and the maximum rate of accumulation of dry matter in the fruits occurred during the period of 90 to 150 days after planting. This may indicate that the peak of the pepper N requirement and utilization would be during the same period of the maximum growth rate. Increasing the rates of nitrogen applied increased the uptake of nitrogen by the plants and at the same time stimulated the uptake of potassium and phosphorus through the synergistic effect of nitrogen on both nutrients.
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Claims 10
Claim · model-written summary
Adding nitrogen increased bell pepper yield in both seasons.
- Taxon
- bell peppere0
- Treatment
- addition of nitrogene1
- Outcome
- yielde1
- Direction
- increasede1
- Qualifier
- both seasonse1
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“the yield and marketable number of fruits in both seasons increased with the addition of nitrogen”
Claim · model-written summary
Adding nitrogen increased the marketable number of bell pepper fruits in both seasons.
- Taxon
- bell peppere0
- Treatment
- addition of nitrogene1
- Outcome
- marketable number of fruitse1
- Direction
- increasede1
- Qualifier
- both seasonse1
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“the yield and marketable number of fruits in both seasons increased with the addition of nitrogen”
Claim · model-written summary
The highest bell pepper yield occurred at 150 kg N ha‐1.
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“The highest yield was obtained with the addition of 150 kg N ha‐1”
Claim · model-written summary
The maximum growth rate occurred 90 to 150 days after planting.
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“The maximum growth rate and the maximum rate of accumulation of dry matter in the fruits occurred during the period of 90 to 150 days after planting”
Claim · model-written summary
The maximum rate of fruit dry matter accumulation occurred 90 to 150 days after planting.
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“The maximum growth rate and the maximum rate of accumulation of dry matter in the fruits occurred during the period of 90 to 150 days after planting”
Claim · model-written summary
The authors suggest peak pepper nitrogen requirement and use occur during maximum growth.
Verbatim
e0“pepper N requirement and utilization would be during the same period of the maximum growth rate”
Claim · model-written summary
Higher nitrogen application increased nitrogen uptake by pepper plants.
- Taxon
- bell peppere0
- Treatment
- Increasing the rates of nitrogen appliede1
- Outcome
- uptake of nitrogene1
- Direction
- increasede1
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“Increasing the rates of nitrogen applied increased the uptake of nitrogen by the plants”
Claim · model-written summary
Higher nitrogen application stimulated potassium uptake by pepper plants.
- Taxon
- bell peppere0
- Treatment
- Increasing the rates of nitrogen appliede1
- Outcome
- uptake of potassiume1
- Direction
- stimulatede1
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“Increasing the rates of nitrogen applied increased the uptake of nitrogen by the plants and at the same time stimulated the uptake of potassium and phosphorus”
Claim · model-written summary
Higher nitrogen application stimulated phosphorus uptake by pepper plants.
- Taxon
- bell peppere0
- Treatment
- Increasing the rates of nitrogen appliede1
- Outcome
- uptake of potassium and phosphoruse1
- Direction
- stimulatede1
Not reportedComparator
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“Increasing the rates of nitrogen applied increased the uptake of nitrogen by the plants and at the same time stimulated the uptake of potassium and phosphorus”
Claim · model-written summary
The authors attribute stimulated potassium and phosphorus uptake to a synergistic effect of nitrogen.
Verbatim
e0“bell pepper (Capsicum annuum)”
e1“stimulated the uptake of potassium and phosphorus through the synergistic effect of nitrogen on both nutrients”
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See all 12 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.