Journals / Anadolu Tarım Bilimleri Dergisi / 2017 / Cilt: 32 - Sayı: 3

Effects of soil tillage systems on aggregate-associated total carbon and nitrogen contents under Çukurova conditions

Çukurova koşullarında toprak işleme yöntemlerinin agregatlara bağlı toplam karbon ve azot içerikleri üzerine etkileri

Pages
383–390
Publication Date
2017-10-15
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Except for RT-1 in other conservation tillage methods (NT, RNT and RT-2) total nitrogen values were lower compared to conventional tillage methods.

📌 3 Key Takeaways

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Objective & Hypothesis:The effect of six different tillage methods under long-term (2006-2014) wheat-maize and wheat-soy rotations on aggregate-assosicated total carbon and nitrogen content in two different depths (0-15, 15-30 cm) were studied under Çukurova conditions in approximately 50 % clay containing soil.
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Key Findings & Data:The tillage systems consisted of conventional tillage with stubble (CT-1), conventional tillage with stubbles burned (CT-2), heavy disc harrow reduced tillage (RT-1), rototiller reduced tillage (RT-2), reduced tillage with heavy tandem disc harrow fallowed by no-tillage (RNT), and no-till (NT).
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Conclusion & Impact:Except for RT-1 in other conservation tillage methods (NT, RNT and RT-2) total nitrogen values were lower compared to conventional tillage methods.
🔬Design:Research Article
📍Scope:2006-2014 Verileri
⚙️Variables:Aggregate · Conservation tillage · No-till

Abstract

The effect of six different tillage methods under long-term (2006-2014) wheat-maize and wheat-soy rotations on aggregate-assosicated total carbon and nitrogen content in two different depths (0-15, 15-30 cm) were studied under Çukurova conditions in approximately 50 % clay containing soil. The tillage systems consisted of conventional tillage with stubble (CT-1), conventional tillage with stubbles burned (CT-2), heavy disc harrow reduced tillage (RT-1), rototiller reduced tillage (RT-2), reduced tillage with heavy tandem disc harrow fallowed by no-tillage (RNT), and no-till (NT). Each tillage method applied at 480 m2 plot and replicated three times in randomly distributed plots. Aggregate-associated total C contents in 0-15 cm depth were obtained higher in conservation tillage treatments compared to traditional tillage techniques at all aggregate sizes (>4.0 mm, 4.0-2.0 mm, 2.0-1.0 mm and 1.0-0.5 mm). Aggregate-associated total C values under conservation tillage methods decreased with increasing soil depth. In both depths (0-15, 15-30 cm) and at all aggregate sizes the highest total nitrogen concentration values were determined in RT-1 tillage treatment. Significant enhancements of total carbon bounding in aggregates were observed in conservation tillage methods compared to traditional tillage methods. Except for RT-1 in other conservation tillage methods (NT, RNT and RT-2) total nitrogen values were lower compared to conventional tillage methods.

Özet

Çukurova koşullarında yaklaşık % 50 oranında kil içeren bir toprakta uzun süreli (2006-2014) buğday-mısır ve buğday-soya rotasyonu altında altı farklı toprak işleme yönteminin iki farklı derinlikte (0-15 ve 15-30 cm) agregatlara bağlı toplam karbon ve azot içeriğine etkileri araştırılmıştır. Toprak işleme uygulamaları olarak; Anızlı geleneksel toprak işleme (Gİ–1), Anızları yakılmış geleneksel toprak işleme (Gİ–2), Ağır diskli tırmıklı azaltılmış toprak işleme (ATİ–1), Rototillerli azaltılmış toprak işleme (ATİ–2), Ağır diskli tırmıklı azaltılmış sıfır toprak işleme (ASTİ) ve Doğrudan ekimli sıfır toprak işleme (STİ) yöntemleri kullanılmıştır. Her bir işleme yöntemi 480 m2’lik alana uygulanmakta ve 3 tekerrürlü tesadüf parselinden oluşmaktadır. 0-15 cm derinlikte bütün agregat boyutlarında (>4.0 mm, 4.0-2.0 mm, 2.0-1.0 mm ve 1.0-0.5 mm) toplam karbon değerleri geleneksel işleme yöntemlerine kıyasla korumalı işleme uygulamaları altında daha yüksek değerler elde edilmiştir. Derinlikteki artışla birlikte korumalı işleme yöntemleri altındaki agregatlarda bulunan toplam karbon değerleri azalmıştır. Her iki derinlikte (0-15 cm ve 15-30 cm) ve bütün agregat boyutlarında (>4.0 mm, 4.0-2.0 mm, 2.0-1.0 mm ve 1.0-0.5 mm) en yüksek toplam azot değerleri ATİ-1 işleme yöntemi altında belirlenmiştir. Korumalı işleme yöntemleri, geleneksel işleme yöntemlerine kıyasla agregatlar içerisinde toplam karbonun bağlanmasında önemli iyileşmeler sağladığı belirlenmiştir. ATİ-1 hariç diğer korumalı işleme yöntemlerinde (STİ, ASTİ ve ATİ-2) geleneksel işlemelere göre daha düşük toplam azot değerleri belirlenmiştir.

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Cite This Article

CELİK, İ., ACAR, M. (2017). Effects of soil tillage systems on aggregate-associated total carbon and nitrogen contents under Çukurova conditions. Anadolu Tarım Bilimleri Dergisi, Cilt: 32 - Sayı: 3, 383–390. https://ajindex.com/articles/135552

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