ALİ ÜNLÜKARA, YAKUP ÇIKILI, Ahmet ÖZTÜRK

Farklı yıkama oranlarında sulama uygulamalarının fasulyenin (Phaseolus vugaris) gelişimine ve besin maddesi içeriğine etkisi

Bu arastırmada her sulamayla birlikte ve farklı oranlarda yıkama yapılması durumunda toprak tuzlulugunda ve mineral madde içeriginde olusacak degisimler incelenmis ve farklı yıkama oranlarının fasulye verimine ve çesitli organlarındaki mineral madde birikimine etkileri belirlenmeye çalısılmıstır. Tesadüf parselleri deneme desenine göre yürütülen denemede, saksılarda yetistirilen fasulyeler 4 farklı yıkama oranı (LF1= 0, LF2= 0.15, LF3= 0.30 ve LF4= 0.50) dikkate alınarak sulanmıstır. Sulamalar, 2.5 dS m-1 düzeyinde CaCl2 ve NaCl tuzlarıyla hazırlanmıs olan tuzlu suyla gerçeklestirilmistir. Toprak tuzlulugu artan yıkama oranıyla birlikte azalma gösterirken, verim de artan yıkamayla birlikte artmıs ve LF= 0.30’un üzerindeki yıkamalar için azalma egilimi göstermistir. LF1, LF2, LF3 ve LF4 uygulamaları sonucu sırasıyla 78.0, 114.9, 141.6 ve 127.0 g saksı-1 kadar verim alınmıstır. Toprak tuzlulugu sulama suyu tuzluluguna göre LF1, LF2, LF3 ve LF4 için sırayla 3.4, 2.0, 1.7 ve 1.2 kat artıs göstermistir. Toprak saturasyon çözeltisinde Mg/Ca oranı artan yıkamayla birlikte azalmıstır. Artan yıkama oranı sürgün ve meyvede P içeriginin artmasına, sürgünlerde Ca ve Mg içeriginin, sürgün ve meyvede N içeriginin düsmesine neden olmustur.

Anahtar Kelimeler:

mineral madde içeriği, toprak yıkama gereksinimi, toprak yıkama, sulama, Phaseolus vulgaris, fasulye, besin maddeleri, besin maddesi içeriği

Effects of different leaching fractions on growth of bean (Phaseolus vulgaris) and its mineral composition

In this study, effects of different leaching fractions on soil salinity and its mineral composition were investigated. Additionally, fresh bean yield and mineral matter accumulation in its leaf shoot and fruit were determined. The experiment conducted in randomized plot design with 4 leaching treatments (LF1= 0.00, LF2= 0.15, LF3= 0.30 and LF4= 0.50) and leaching exhibited with each irrigation throughout the experiment. Saline irrigation water at 2.5 dS m-1 level prepared with CaCl2 and NaCl salts were used to irrigate bean plants. Fresh bean yield increased as leaching fraction increased to 0.30 leaching ratio while soil salinity decreased with increasing leaching fraction. Fresh bean yields for LF1, LF2, LF3 and LF4 were 78.0, 114.9, 141.6 and 127.0 g pot-1, respectively. Soil salinity increased 3.4, 2.0, 1.7 and 1.2 times with respect to irrigation water salinity level for LF1, LF2, LF3 and LF4, respectively. Mg/Ca ratio in saturation paste extract decreased with increasing leaching ratios. Increased leaching ratios caused increases in P content of shoot and fruit and decreases in Ca and Mg content of shoot and decreases in both shoot and fruit of N content.

Keywords:

mineral content, leaching requirement, leaching, irrigation, Phaseolus vulgaris, bean, nutrients, nutrient content,

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Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi-Cover

ISSN: 1300-2910
Yayın Aralığı: Yılda 3 Sayı
Başlangıç: 1985
Yayıncı: Tokat Gaziosmanpaşa Üniversitesi Ziraat Fakültesi Dergisi Yayın Ofisi