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Journals / Toprak Bilimi ve Bitki Besleme Dergisi / 2026 / Cilt: 14 Sayı: 1

Effects of K-Si biocomposite material obtained from rice husk and sheep wool on the growth of barley under salinity stress

Çeltik kavuzundan elde edilen K-Si biyokompozit materyali ve koyun yününün tuz stresi altında yetiştirilen arpa bitkisi gelişimi üzerine etkisi

Hanife Akça(ANKARA UNIVERSITY, FACULTY OF AGRICULTURE)0000-0001-8529-6469
Pages
13–24
Publication Date
2026-06-26
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AI Summary & Key Takeaways

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

The results indicated that the combined application of K-Si biocomposite and sheep wool significantly increased dry weight, as well as N, P, K, and Si concentrations in barley plants.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Salinity is one of the major abiotic stress factors limiting crop production by adversely affecting plant growth, nutrient uptake, and physiological processes.
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Key Findings & Data:The pot experiment was conducted in a completely randomized design with treatments consisting of sheep wool (0, 5, and 10 g kg⁻¹) and K-Si biocomposite (0 and 2 g kg⁻¹) combinations.
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Conclusion & Impact:The results indicated that the combined application of K-Si biocomposite and sheep wool significantly increased dry weight, as well as N, P, K, and Si concentrations in barley plants.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Tuz stresi · çeltik kavuzu kaynaklı silisyum · K-Si biyokompozit materyali

Abstract

Salinity is one of the major abiotic stress factors limiting crop production by adversely affecting plant growth, nutrient uptake, and physiological processes. This study aimed to evaluate the effects of a K-Si biocomposite material derived from rice husk, and sheep wool on the growth, nutrient concentration and some physiological parameters of barley grown under salinity stress. The pot experiment was conducted in a completely randomized design with treatments consisting of sheep wool (0, 5, and 10 g kg⁻¹) and K-Si biocomposite (0 and 2 g kg⁻¹) combinations. Salinity stress was imposed by applying 500 mg P kg-1 15-15-15 fertilizer and 10 mM NaCl. The results indicated that the combined application of K-Si biocomposite and sheep wool significantly increased dry weight, as well as N, P, K, and Si concentrations in barley plants. In addition, relative water content and leaf water retention capacity were improved. While the K-Si application reduced Na accumulation in plant tissues, an increase in Na concentration was observed with sheep wool treatments. Silicon application also decreased membrane permeability, indicating enhanced stress tolerance. Correlation analysis revealed positive relationships between plant growth, nutrient uptake, and physiological parameters. The combined use of K-Si biocomposite and sheep wool can be considered an effective and sustainable approach to mitigate the adverse effects of salinity stress; however, Na accumulation associated with sheep wool application should be carefully managed through appropriate dose optimization.

Özet

Tuzluluk, bitkisel üretimi sınırlandıran önemli abiyotik stres faktörlerinden biridir ve bitkilerde büyüme, besin elementi alımı ve fizyolojik süreçler üzerinde olumsuz etkilere yol açmaktadır. Bu çalışmada, çeltik kavuzundan elde edilen K-Si biyokompozit materyali ile koyun yününün, tuz stresi altında yetiştirilen arpa bitkisinin gelişimi, besin elementi alımı ve bazı fizyolojik özellikleri üzerine etkileri araştırılmıştır. Saksı denemesi tesadüf parselleri deneme desenine göre kurulmuş ve uygulamalar koyun yünü (0, 5 ve 10 g kg⁻¹) ile K-Si biyokompozit (0 ve 2 g kg⁻¹) kombinasyonlarından oluşturulmuştur. Tuz stresi 500 mg P kg-1 olacak şekilde 15-15-15 gübresi ve 10 mM NaCl uygulaması ile sağlanmıştır. Elde edilen sonuçlara göre, K-Si ve koyun yünü uygulamalarının birlikte uygulanması arpa bitkisinde kuru ağırlık, N, P, K ve Si konsantrasyonlarını, nispi nem içeriği ve yaprak su tutma kapasitesini artırmıştır. K-Si uygulaması bitkide Na birikimini azaltırken, koyun yünü uygulamalarında Na konsantrasyonunda artış gözlenmiştir. Ayrıca, silisyum uygulamalarının membran geçirgenliğini azaltarak stres toleransını artırdığı belirlenmiştir. Korelasyon analizleri, bitki gelişimi ile besin elementi alımı ve fizyolojik parametreler arasında pozitif ilişkiler olduğunu ortaya koymuştur. Sonuç olarak, K-Si biyokompozit materyali ve koyun yününün birlikte kullanımının tuz stresinin olumsuz etkilerinin azaltılmasında etkili bir yaklaşım olarak değerlendirilebileceği; ancak koyun yünü uygulamalarında Na birikimi açısından doz optimizasyonunun önemli olduğu düşünülmektedir.

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Cite This Article

Akça, H. (2026). Effects of K-Si biocomposite material obtained from rice husk and sheep wool on the growth of barley under salinity stress. Toprak Bilimi ve Bitki Besleme Dergisi, Cilt: 14 Sayı: 1, 13–24. https://doi.org/10.33409/tbbbd.1917409

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