Convection and accumulation of trifluralin herbicide in the soil in field conditions

Yıl 2019, Cilt: 7 Sayı: 1, 1 - 9, 22.07.2019

Ülviye Kamburoğlu Çebi , Recep Çakır Hasan Hayri Tok

https://doi.org/10.33409/tbbbd.594995

Cited By: 1

Öz

Nowadays, one of the most
important purposes in agricultural areas is to provide high agricultural
production in order to supply the increasing food requirement according to the
increasing population. In this context, many agricultural inputs which are used
in order to get more yield from unit area effect the agricultural production
system negatively. Herbicide is one the most important inputs, pollutes the
natural resources such as water and soil and effects the living creatures by
reaching to the rivers, lakes and seas and underground waters besides several
macro and micro livings or effects the food chain by cumulating in these living
organisms. This research includes the soils to which the irrigation application
is done by the water in the wells in Turgutbey irrigation areas in Thrace
region. Convection and accumulation of trifluralin herbicide in different
layers of the soil were examined. Sampling was done in 16 different points and
3 layers which had different organic matters and structure. Trifluralin
residual amounts were determined in 1200 (max.) ug/L level with 2,4 (min.). The
trifluralin amounts were determined to be higher in the top layers of the
profiles in the soil samples but decline in the concentrations was seen in the
substratum. Besides, the trifluralin concentrations in the soils taken in
spring were determined to be higher than the concentrations in the soil samples
in autumn.

Anahtar Kelimeler

Trifluralin, Soil, Convection, Accumulation

Tarla koşullarında uygulanan trifluralin herbisidinin toprakta taşınımı ve birikimi

Öz

Günümüzde tarım alanlarında
en önemli amaçlardan bir tanesi, artan nüfusa ve ona paralel olarak artan gıda
gereksinimi karşılamaya yönelik olarak yüksek tarımsal üretimin sağlanmasıdır.
Bu bağlamda, birim alandan daha fazla verim almak amacı ile tarımda kullanılan
birçok tarımsal girdi, tarımsal üretim sistemini olumsuz etkilemektedir.
Herbisit girdisi bunların en önemlilerinden biri olup başta su ve toprak gibi
doğal kaynakları kirletmesi ve topraktaki kalıntıları ile bir çok makro ve
mikro canlının yanı sıra, topraktan yıkanarak yer altı suyuna ve akarsu, göl ve
deniz gibi su yüzeylerine ulaşarak yaşayan canlıları direkt olarak, ya da bu
canlı organizmalarda birikerek besin zincirini olumsuz etkilemektedir.
Araştırma, Trakya Bölgesi Turgutbey sulama sahasında üreticilerin açtıkları
kuyulardan sağlanan su ile sulama uygulaması yapılan toprakları kapsamaktadır.
Sahaya ait toprakların farklı katmanlarında trifluralin herbisitinin toprakta
taşınımı ve kalıntı olarak birikimi irdelenmiştir. Çalışmada, farklı organik
madde ve bünyeye sahip 16 farklı noktada ve 3 katmanda örnekleme yapılmıştır.
Dört yıllık çalışmada, 2,4 (min.) ile 1200 (max.) ug/L düzeyinde trifluralin
kalıntı miktarları belirlenmiştir. Toprak örneklerinde profillerin üst
katmanlarında trifluralin miktarları daha yüksek olurken alt katlara
inildiğinde konsantrasyonlarda düşme görülmektedir. Ayrıca ilkbaharda alınan
topraklardaki trifluralin konsantrasyonlarının sonbaharda yapılan toprak
örneklemelerindeki konsantrasyonlara oranla daha yüksek olduğu tespit
edilmiştir.

Anahtar Kelimeler

Trifluralin, toprak, taşınma, birikim

Kaynakça

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