Abstract
The influence of nitrogen (N) and potassium (K) fertilizers on pepper (Capsicum annuum L.) and tomato (Lycopersicon esculentum Mill) growth, fruit production and nutrient uptake was determined under field conditions for two successive years. The aim of the experiment was to determine the optimum N and K fertilizer rate for yield and quality parameters. Experiments were carried out during the two consecutive growing seasons of 1997-1998 at the Agricultural Research Station of Cukurova University, Adana, Turkey. A split plot design with three replications was used with each block containing three treatments 0, 100 and 200 Kg ha-1 of N and K2O. Nitrogen was used as NH4NO3 and K used as K2SO4. Results revealed that the pepper and tomato plants have responded significantly (P< 0.001) to the nitrogen fertilizer (100 and 200 kg N ha-1) by increasing plant length, yield and nutrient content. However, potassium fertilizers have less effect on both plant parameters. Increasing N addition increased tomato and pepper plant yield, however increasing K addition did not make a significant (P< 0.277, 827 respectively) difference on the yield of either plant. Under high nitrogen and potassium fertilizer application, flowering time was earlier than that of the control plants. Nitrogen treatments increased the plant N, P and K concentration. The study showed that K fertilizer has no significant influence on nutrient concentration. Results have shown that pepper plants have a higher K content than tomato plants. Key words: Pepper, tomato, nitrogen, potassium, fertilizer, nutrient uptake.
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Claims 11
Claim · model-written summary
Nitrogen fertilizer increased pepper length, yield, and nutrient content significantly.
- Taxon
- peppert0
- Treatment
- nitrogen fertilizer (100 and 200 kg N ha-1)e0
- Outcome
- plant length, yield and nutrient contente0
- Direction
- increasinge0
Not reportedComparator
Verbatim
e0“pepper and tomato plants have responded significantly (P< 0.001) to the nitrogen fertilizer (100 and 200 kg N ha-1) by increasing plant length, yield and nutrient content”
t0“pepper and tomato”
Claim · model-written summary
Nitrogen fertilizer increased tomato length, yield, and nutrient content significantly.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- nitrogen fertilizer (100 and 200 kg N ha-1)e0
- Outcome
- plant length, yield and nutrient contente0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pepper and tomato plants have responded significantly (P< 0.001) to the nitrogen fertilizer (100 and 200 kg N ha-1) by increasing plant length, yield and nutrient content”
t0“pepper and tomato”
Claim · model-written summary
Potassium fertilizer had less effect on pepper growth and yield parameters.
Not reportedComparator
Verbatim
e0“potassium fertilizers have less effect on both plant parameters”
t0“pepper and tomato”
Claim · model-written summary
Potassium fertilizer had less effect on tomato growth and yield parameters.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- potassium fertilizerse0
- Outcome
- plant parameterse0
- Direction
- less effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium fertilizers have less effect on both plant parameters”
t0“pepper and tomato”
Claim · model-written summary
Increasing potassium did not significantly alter tomato yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- increasing K additione0
- Outcome
- yielde0
- Direction
- did not make a significant (P< 0.277, 827 respectively) differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing K addition did not make a significant (P< 0.277, 827 respectively) difference on the yield of either plant”
t0“pepper and tomato”
Claim · model-written summary
Increasing potassium did not significantly alter pepper yield.
- Taxon
- peppert0
- Treatment
- increasing K additione0
- Outcome
- yielde0
- Direction
- did not make a significant (P< 0.277, 827 respectively) differencee0
Not reportedComparator
Verbatim
e0“increasing K addition did not make a significant (P< 0.277, 827 respectively) difference on the yield of either plant”
t0“pepper and tomato”
Claim · model-written summary
High nitrogen and potassium made pepper flowering earlier than controls.
Verbatim
e0“Under high nitrogen and potassium fertilizer application, flowering time was earlier than that of the control plants”
t0“pepper and tomato”
Claim · model-written summary
High nitrogen and potassium made tomato flowering earlier than controls.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- high nitrogen and potassium fertilizer applicatione0
- Outcome
- flowering timee0
- Direction
- earliere0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under high nitrogen and potassium fertilizer application, flowering time was earlier than that of the control plants”
t0“pepper and tomato”
Claim · model-written summary
Nitrogen treatments increased plant nitrogen, phosphorus, and potassium concentrations.
- Taxon
- pepper and tomatot0
- Treatment
- Nitrogen treatmentse0
- Outcome
- plant N, P and K concentratione0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen treatments increased the plant N, P and K concentration”
t0“pepper and tomato”
Claim · model-written summary
Potassium fertilizer had no significant influence on nutrient concentration.
- Taxon
- pepper and tomatot0
- Treatment
- K fertilizere0
- Outcome
- nutrient concentratione0
- Direction
- no significant influencee0
Not reportedComparator
Verbatim
e0“K fertilizer has no significant influence on nutrient concentration”
t0“pepper and tomato”
Claim · model-written summary
Pepper plants had higher potassium content than tomato plants.
Verbatim
e0“pepper plants have a higher K content than tomato plants”
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849 papers in the same direction as this paper · 104 in the opposite direction · 24 reporting no difference from an alternative
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See all 978 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.