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Amaç: Bu çalışmada toprak nem ölçümüne dayalı kontrollü sulama şartlarında çerezlik kabak azot ihtiyacının %100, %80, %60, %40, %20 ve %0 kadarı ekim sırasında uygulanmış ve azotun ekimde uygulanmayan kısmı 5 eşit parçaya bölünerek fertigasyonla uygulanmıştır. Bu şekildeki bir uygulamanın çerezlik kabak su kullanımı ve verimliliği gibi bir takım özelliklerine etkisi incelenmiştir. Yöntem ve Bulgular: Azotun %100 ve %80’inin ekim sırasında uygulanmasıyla yapraktaki toplam klorofil miktarı gelişme dönemi boyunca diğer konulardan hem daha yüksek bir seyir göstermiş hem de dönem ortalarına doğru arttıktan sonra hasada doğru düşmüştür. Ekim sırasında %100 azot uygulaması sonucunda ortalama yaprak alanı ve toplam yaprak alanı artmıştır. Genel Yorum: Ekimde azotun en az %80 ve üzerimde uygulanması ve toprak nem ölçümüne dayalı kontrollü sulamalar sonucu sulama suyu kullanım etkinliği, su kullanım etkinliği, bitki meyve sayısı, meyve verimi, meyve tohum verimi, tohum verimi ve 1000 tane ağırlığında önemli artışlar meydana gelmiştir. Çalışmanın Önemi ve Etkisi: Çerezlik kabak üretiminde kontrollü sulama şartları altında bitki azot gereksiniminin en az %80’inin ekim sırasında uygulanması verimlilik ve karlılık açısından önemli sonuçlar doğuracaktır.
Purpose: In this study on the basis of the soil moisture measurement controlled irrigation conditions, 100%, 80%, 60% and 40% of the need for nitrogen cranberry was applied during October and the part of nitrogen not applied in October was applied with fermentation by dividing into 5 equal pieces. The impact of an application in this form on a set of characteristics such as the use and efficiency of cookies water is studied. Method and findings: With the application of 100% and 80% of nitrogen during October, the total amount of chlorophyll in the leaves has shown a higher flux than other subjects during the development period and has fallen to the harvest after increasing towards the middle of the period. During October, the average leaf area and total leaf area increased as a result of 100% nitrogen application. Overview: In October, the application of at least 80% and above nitrogen and controlled irrigation based on the soil moisture measurement resulted in significant increases in the efficiency of water use, water use efficiency, plant fruit number, fruit productivity, fruit seed productivity, seed productivity and 1000 weight. The importance and impact of the study: Implementation of at least 80% of the plant nitrogen requirement during October under controlled irrigation conditions in the production of cookies crop will result in significant results in terms of efficiency and profitability. Keywords: nitrogen levels during October, giant cabbage population, plant growth, water consumption.
Aims: In this study, effects of different nitrogen applications during sowing to pumpkin growth, yield, evapotranspiration and water use efficiency were investigated under irrigated agriculture in Kayseri province of Middle Anatolian 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 Agricultural Research and Training Center. Develi pumpkin population (Cucurbita pepo L.) was used. 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 of nitrogen amounts were applied by fertigation in 5 consecutive irrigations and all treatment were received the same amount of nitrogen. Soil moisture of the treatments were monitored by neutron meter. Depleted water from root zone was applied by drip irrigation system. The highest total leaf area was determined in N100 while the highest total chlorophyll amounts were determined in N80 and N100. Nitrogen applications big than 80% during sowing increased water use efficiency, fruit diameter, fruit yield, seed yield per fruit and seed yield, significantly. Seed yield in N100 was found 139.6% higher than seed yield in N0. The least nitrogen rate during sowing for Develi pumpkin population was offered as 100 kg per ha under controlled irrigation conditions. Conclusions: Application of whole nitrogen needs to pumpkin at sowing under controlled irrigation conditions possitively affected pumpkin seed yield and all growth parameters. At least 80% of pumpkin nitrogen need should be applied at sowing to obtaine higher yield and quality. Significance and Impact of the Study: If pumpkin irrigations are performed by measuring soil moisture deficit in effective root zone, higher seed yield and quality would be obtained by applitying nitrogen need at sowing without dividing several parts.
Alan : Ziraat, Orman ve Su Ürünleri
Dergi Türü : Ulusal
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