Fındık zurufu–ahır gübresi karışımlarından elde edilen vermikompostların kimyasal özellikleri, buğday verimi ve toprak mikrobiyal biyokütle karbonu üzerine etkileri

Öz

Bu çalışmada, fındık zurufu ile ahır gübresinin farklı oranlarda karıştırılmasıyla elde edilen vermikompostların kimyasal özellikleri belirlenmiş ve bu vermikompostların farklı dozlarda uygulanmasının buğdayın dane verimi, bitki biyolojik verimi ve toprağın mikrobiyal biyokütle karbonu (MBC) üzerine etkileri araştırılmıştır. Vermikompost üretiminde %25 fındık zurufu + %75 ahır gübresi, %50 fındık zurufu + %50 ahır gübresi ve %75 fındık zurufu + %25 ahır gübresi karışımları kullanılmıştır. Elde edilen vermikompostlar sera koşullarında %2, %4, %6 ve %8 dozlarında toprağa uygulanmıştır. Sonuçlar, başlangıç materyali oranlarının vermikompostların kimyasal özelliklerini önemli ölçüde etkilediğini göstermiştir. Toprak kimyasal özellikleri bakımından %50 fındık zurufu + %50 ahır gübresi karışımı öne çıkarken, bitki verim parametreleri bakımından en başarılı sonuçlar %25 fındık zurufu + %75 ahır gübresi karışımında elde edilmiştir. Tüm vermikompost uygulamaları kontrole göre dane ve biyolojik verimi arttırmış, en yüksek dane verimi ve bitki biyolojik verim sırasıyla 606,40 ve 2457,87 kg da⁻¹ ile %25 fındık zurufu + %75 ahır gübresi karışımının %8 dozunda belirlenmiştir. Uygulamalar, mikrobiyal biyokütle karbon değerlerini olumlu yönde etkilerken, verim parametreleri üzerinde değişken etkiler göstermiştir. En yüksek MBC değeri 113,190 mg C 100 g⁻¹ ile %75 fındık zurufu + %25 ahır gübresi karışımının %6 dozunda saptanmıştır. Sonuç olarak, fındık zurufunun ahır gübresi ile uygun oranlarda vermikompostlanması, hem bölgesel bir tarımsal atığın değerlendirilmesi hem de buğday verimi ile toprak biyolojik kalitesinin iyileştirilmesi açısından önemli bir potansiyel taşımaktadır.

Anahtar Kelimeler

• Fındık zurufu
• vermikompost
• buğday
• mikrobiyal biyomas karbon
• organik atık yönetimi.

Effects of vermicomposts obtained from hazelnut husk–farmyard manure mixtures on their chemical properties, wheat yield, and soil microbial biomass carbon

Öz

This study investigated the chemical properties of vermicomposts produced by mixing hazelnut husk and farmyard manure at different ratios, as well as the effects of these vermicomposts applied at different doses on wheat grain yield, plant biological yield, and soil microbial biomass carbon (MBC). In vermicompost production, mixtures containing 25% hazelnut husk + 75% farmyard manure, 50% hazelnut husk + 50% farmyard manure, and 75% hazelnut husk + 25% farmyard manure were used. The obtained vermicomposts were applied to the soil at rates of 2%, 4%, 6%, and 8% under greenhouse conditions. The results showed that the initial material ratios significantly affected the chemical properties of the vermicomposts. In terms of soil chemical properties, the mixture containing 50% hazelnut husk + 50% farmyard manure was prominent, whereas the best results for plant yield parameters were obtained from the mixture containing 25% hazelnut husk + 75% farmyard manure. All vermicompost applications increased grain yield and biological yield compared to the control treatment. The highest grain yield and plant biological yield were determined as 606.40 and 2457.87 kg da⁻¹, respectively, in the 8% dose of the 25% hazelnut husk + 75% farmyard manure mixture. The applications positively affected microbial biomass carbon values, while showing variable effects on yield parameters. The highest MBC value was determined as 113.190 mg C 100 g⁻¹ in the 6% dose of the 75% hazelnut husk + 25% farmyard manure mixture. Consequently, vermicomposting hazelnut husk with farmyard manure at appropriate ratios has significant potential both for the utilization of a regional agricultural waste and for improving wheat yield and soil biological quality.

Anahtar Kelimeler

• Hazelnut Husk
• vermicompost
• wheat
• microbial biomass carbon
• organic waste management.

Kaynakça

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