Effect of salinity in ırrigation water on some plant development parameters of sainfoin (Onobrychis viciifolia scop.) and soil salinity

Bu çalışma sulama suyu tuzluluklarının korunganın verimi ve kalitesi ile toprak tuzlulaşması üzerine olan etkilerini ortaya koymak amacıyla serada, 35 cm çapında ve 65 cm yüksekliğinde PVC kolonlarda yapılmıştır. Korunga tuzluluk sorunu olan kurak ve yarı kurak bölgelerde yetiştiği ve soğuğa dayanıklı olduğu için seçilmiştir. 5 sulama suyu tuzluluğu (0.27, 3.5, 7, 10 ve 13 dS m-1) ve iki alkalilik düzeyinde (SAR= 0.35 ve 10) 3 tekrarlamalı olarak, tesadüf parsellerinde faktöriyel düzende ele alınmıştır. Kolonlardan 2 kere biçim yapılmıştır. Her iki biçimde de artan tuz miktarı ve alkalilikle bitki boyu kısalmış, kuru ot verimi ve ham protein oranı azalmıştır. Hatta en yüksek tuz konsantrasyonu ve alkalilikte ikinci biçimde canlı bitki kalmamıştır. Ayrıca sulama suyu tuzluluğunun artışına bağlı olarak toprak tuzluluğu artış göstermiştir.

Sulama suyu tuzluluğunun korunganın (Onobrychis viciifolia scop.) bazı bitki gelişim parametreleri ve toprak tuzluluğuna etkisi

Effect of irrigation water salinity was investigated on both the yield and quality of sainfoin and soil salinization under greenhouse conditions in 35 cm wide and 65 cm long PVC columns. Sainfoin was chosen because it is grown in arid and semiarid region with salinity problems and it is cold resistant. 5 levels of water salinity (0.27, 3.5, 7, 10 and 13 dS m-1) and two levels of alkalinity (SAR=0.35 and 10) were evaluated as a factorial in a randomized - plot design with three replicates. Sainfoin was harvested twice. Plants got shorter and dry hay yield and crude protein ratio were declined as the levels of salt and alkalinity increased for both harvests. There were no live plants in the second harvest when salt concentration and alkalinity was highest. Increase in soil salinization was also observed with increasing water salt level.

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