Abstract
Aims:In this study, effects of different nitrogen applications during sowing topumpkin growth, yield, evapotranspiration and water use efficiency wereinvestigated under irrigated agriculture in Kayseri province of MiddleAnatolian Region of Turkey.Methods and Results:The study, designed in completely randomized block-plots with 4 replications,was conducted in the experimental area of Erciyes University AgriculturalResearch and Training Center. Develi pumpkin population (Cucurbita pepo L.) wasused. The treatments were N0, N20, N40, N60,N80 and N100 that consisted of applications of 0%, 20%,40%, 60%, 80% and 100% of pumpkin nitrogen need, respectively. The rest ofnitrogen amounts were applied by fertigation in 5 consecutive irrigations andall treatment were received the same amount of nitrogen. Soil moisture of thetreatments were monitored by neutron meter. Depleted water from root zone wasapplied by drip irrigation system. The highest total leaf area was determinedin N100 while the highest total chlorophyll amounts were determinedin N80 and N100. Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly. Seed yield in N100was found 139.6% higher than seed yield in N0. The least nitrogen rate during sowing forDeveli pumpkin population was offered as 100 kg per ha under controlledirrigation conditions. Conclusions:Application of whole nitrogen needs to pumpkin at sowing under controlledirrigation conditions possitively affected pumpkin seed yield and all growthparameters. At least 80% of pumpkin nitrogen need should be applied at sowingto obtaine higher yield and quality.Significance and Impact ofthe Study: If pumpkin irrigations are performed by measuring soilmoisture deficit in effective root zone, higher seed yield and quality would beobtained by applitying nitrogen need at sowing without dividing several parts.
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Claims 10
Claim · model-written summary
N100 produced the highest total leaf area.
Not reportedComparator
Verbatim
e0“The highest total leaf area was determinedin N100”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
N80 and N100 produced the highest total chlorophyll amounts.
Not reportedComparator
Verbatim
e0“the highest total chlorophyll amounts were determinedin N80 and N100”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
More than 80% nitrogen at sowing significantly increased water use efficiency.
- Taxon
- pumpkint0
- Treatment
- Nitrogen applications big than 80%during sowinge0
- Outcome
- water use efficiencye0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
More than 80% nitrogen at sowing significantly increased fruit diameter.
- Taxon
- pumpkint0
- Treatment
- Nitrogen applications big than 80%during sowinge0
- Outcome
- fruit diametere0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
More than 80% nitrogen at sowing significantly increased fruit yield.
- Taxon
- pumpkint0
- Treatment
- Nitrogen applications big than 80%during sowinge0
- Outcome
- fruit yielde0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
More than 80% nitrogen at sowing significantly increased seed yield per fruit.
- Taxon
- pumpkint0
- Treatment
- Nitrogen applications big than 80%during sowinge0
- Outcome
- seedyield per fruite0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
More than 80% nitrogen at sowing significantly increased seed yield.
- Taxon
- pumpkint0
- Treatment
- Nitrogen applications big than 80%during sowinge0
- Outcome
- seed yielde0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“Nitrogen applications big than 80%during sowing increased water use efficiency, fruit diameter, fruit yield, seedyield per fruit and seed yield, significantly.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
N100 seed yield exceeded N0 by 139.6%.
Verbatim
e0“Seed yield in N100was found 139.6% higher than seed yield in N0.”
t0“pumpkin (Cucurbita pepo L.)”
Claim · model-written summary
The authors recommend at least 80% of pumpkin nitrogen need at sowing for higher yield and quality.
Verbatim
e0“At least 80% of pumpkin nitrogen need should be applied at sowingto obtaine higher yield and quality.”
Claim · model-written summary
The authors offer 100 kg per ha as the minimum sowing-time nitrogen rate under controlled irrigation.
Verbatim
e0“The least nitrogen rate during sowing forDeveli pumpkin population was offered as 100 kg per ha under controlledirrigation conditions.”
The same questions in other papers
nitrogen · physiology: water · Cucurbita (pumpkins)Positive and negative results
1 paper in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
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nitrogen · yield · Cucurbita (pumpkins)Positive and negative results
21 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- negative
- negative
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.