Effects of Different Salinity Levels on Plant Nutrient Elements of Head Lettuce Cultivation (Lactuca sativa var. capitata) in Soilless Culture

Öz

The research was determined that on yield and plant nutrients of three different salinity levels [(Control (EC0), Control +1 dS m-1 (EC1), Control +2 dS m-1 (EC2)] of head lettuce cultivation (Lactuca sativa var. capitata) with soilless culture. In order to reach the determined target, Bombola F1 variety was grown by using perlite medium in channels made of PE material. With this aim to achieve the specified goal, plant nutrient content were analyzed. In the I. production period, an average of 0,25 L plant-1 and 3.76 L plant-1 plant per day, II. In the production period, an average of 0.33-3.50 L plant-1 nutrient solution was applied. In the I. production period, the average amount of nutrient solution drained from the subjects was between 0.15-2.29 L per plant-1 and II. In the production period, it varied between 0.26-2.43 L plant-1. The main effect of salinity levels on the N, P, K, Mg, Zn and Mn contents of the head lettuce leaves made a statistically significant difference. The effect of salinity levels on the Ca, Fe and Cu contents of the head lettuce leaves was insignificant (p<0.05). It is possible to approach that soilless agriculture head lettuce cultivation can be carried out by using poor quality and salt irrigation waters with a certain concentration.

Anahtar Kelimeler

• EC (electrical conductivity)
• nutrition
• head lettuce
• soilless culture
• salinity

Topraksız Baş Salata (Lactuca sativa var. capitata) Yetiştiriciliğinde Farklı Tuzluluk Düzeylerinin Bitki Besin Elementlerinin Üzerindeki Etkileri

Öz

Araştırmada, topraksız tarım koşullarında gerçekleştirilen baş salata (Lactuca sativa var. capitata) yetiştiriciliğinde katı ortam kültüründe 3 farklı tuzluluk [(Kontrol (EC0), Kontrol+1 dS m-1 (EC1) ve Kontrol+2 dS m-1 (EC2)] düzeyinin verim ve bitki besin elementleri üzerindeki etkileri incelenmiştir. Belirlenen hedefe ulaşmak üzere, PE malzemeden yapılmış kanallarda içerisine perlit ortamı kullanılarak Bombola F1 çeşidi yetiştirilmiştir. Bu amaçla, yetiştiricilik dönemi sonunda bitkilerin bitki besin elementi analizleri gerçekleştirilmiştir. I. üretim döneminde, bitkilere günlük ortalama 0,25-3,76 L bitki-1, II. üretim döneminde ise ortalama 0,33-3,50 L bitki-1 arasında değişen miktarda besin çözeltisi uygulanmıştır. I. üretim döneminde konulardan drene olan ortalama besin çözeltisi miktarlarının 0,15-2,29 litre bitki-1, II. üretim döneminde ise 0,26-2,43 L bitki-1 arasında değişmiştir. Tuzluluk düzeylerinin baş salata yapraklarındaki N, P, K, Mg, Zn ve Mn içerikleri üzerindeki ana etkisi istatistiksel anlamda önemli bir fark yaratmıştır. Tuzluluk düzeylerinin baş salata yapraklarındaki Ca, Fe ve Cu içerikleri üzerindeki etkisi ise önemsiz bulunmuştur (p<0,05). Elde edilen sonuçlara dayanarak, topraksız tarım baş salata yetiştiriciliğinin belli bir konsantrasyona sahip tuzlu sulama sularının kullanılarak gerçekleştirilebileceği yaklaşımında bulunmak mümkündür.

Anahtar Kelimeler

• EC (elektriksel iletkenlik)
• gübreleme
• marul
• topraksız tarım
• tuzluluk

Kaynakça

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