Publication: Asit Reaksiyonlu Toprakta Su Kısıtı Koşulunda Vermikompost ve Biyokömür Uygulamalarının Toprak Özellikleri ve Biber Bitkisinin Gelişimine Etkileri
Abstract
Bu çalışma, asidik bir toprakta tam ve kısıtlı sulama koşullarında vermikompost ve biyokömür uygulamalarının biber (Capsicum annuum L.) bitkisinin gelişimi ve toprak özellikleri üzerine etkilerini araştırmak amacıyla Ondokuz Mayıs Üniversitesi Ziraat Fakültesi Toprak Bilimi ve Bitki Besleme Bölümü iklim odasında yürütülmüştür. Denemede asit karakterli killi-tın bünyeye sahip toprağa ahır gübresinden elde edilen vermikompost ve çeltik kavuzundan elde edilen biyokömür %1.5 oranında uygulanmıştır. Denemede kontrol, vermikompost ve biyokömür uygulaması yapılan saksılarda biber bitkisi toprakta bitkiye yarayışlı nemin %100'ü (tam sulama) ve %30'unun (kısıtlı sulama) sağlandığı sulama koşullarında 3 tekrarlamalı olarak yetiştirilmiştir. Deneme sonunda bitki gelişim parametreleri (toplam biyokütle, evapotranspirasyon, su kullanma randımanı (SKR)) ve toprak özellikleri (pH, EC, organik madde, değişebilir Ca, Mg, K, yarayışlı fosfor) belirlenmiştir. Elde edilen bulgulara göre, vermikompost ve biyokömür uygulamaları her iki sulama koşulunda da toprak özelliklerini iyileştirmiş, biber bitkisinin gelişimini istatistiksel olarak önemli düzeyde artırmıştır (p<0.01). Özellikle vermikompost uygulaması, toprak pH'sını ve organik madde içeriğini artırarak bitki gelişimi üzerinde en etkili uygulama olmuştur. Kısıtlı sulama koşullarında tam sulamaya göre biyokömür uygulaması SKR'nı %4,9'dan, %15,9'a, vermikompost uygualaması ise SKR'nı %10,7'den %35,1'e artırmıştır. Özellikle kurak koşullarda vermikompost ve biyokömür uygulamalarının toprak özelliklerini iyileştirerek bitki gelişimini ve su kullanma etkinliğinin artırılması için önerilebilecek uygulamalar olduğu sonucuna varılmıştır.
This study was carried out in the climate chamber of the Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ondokuz Mayıs University, in order to investigate the effects of vermicompost and biochar applications on the development and soil properties of pepper (Capsicum annuum L.) plants under full and deficient irrigation levels in an acidic soil. In the experiment, vermicompost obtained from farmyard manure and biochar obtained from rice husks were applied to the acidic clayey loam soil at a rate of 1.5%. In the experiment, pepper plants were grown in pots including control, vermicompost and biochar applications under differrent irrigation conditions where 100% (full irrigation) and 30% (restricted irrigation) of the available moisture in the soil were provided with 3 replications. At the end of the experiment, plant growth parameters (total biomass, evapotranspiration, water use efficiency (WUE)) and soil properties (pH, EC, organic matter, exchangeable Ca, Mg, K, available phosphorus) were determined. According to the findings, vermicompost and biochar applications improved soil properties in both irrigation conditions and increased pepper plant growth at a statistically significant level (p<0.01). Especially vermicompost application was the most effective application on plant growth by increasing soil pH and organic matter content. Under deficient irrigation conditions, biochar application increased WUE from 4.9% to 15.9% compared to full irrigation, and vermicompost application increased WUE from 10.7% to 35.1%. It was concluded that especially under drought conditions, vermicompost and biochar applications are recommended applications for improving soil properties and increasing plant growth and water use efficiency.
This study was carried out in the climate chamber of the Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ondokuz Mayıs University, in order to investigate the effects of vermicompost and biochar applications on the development and soil properties of pepper (Capsicum annuum L.) plants under full and deficient irrigation levels in an acidic soil. In the experiment, vermicompost obtained from farmyard manure and biochar obtained from rice husks were applied to the acidic clayey loam soil at a rate of 1.5%. In the experiment, pepper plants were grown in pots including control, vermicompost and biochar applications under differrent irrigation conditions where 100% (full irrigation) and 30% (restricted irrigation) of the available moisture in the soil were provided with 3 replications. At the end of the experiment, plant growth parameters (total biomass, evapotranspiration, water use efficiency (WUE)) and soil properties (pH, EC, organic matter, exchangeable Ca, Mg, K, available phosphorus) were determined. According to the findings, vermicompost and biochar applications improved soil properties in both irrigation conditions and increased pepper plant growth at a statistically significant level (p<0.01). Especially vermicompost application was the most effective application on plant growth by increasing soil pH and organic matter content. Under deficient irrigation conditions, biochar application increased WUE from 4.9% to 15.9% compared to full irrigation, and vermicompost application increased WUE from 10.7% to 35.1%. It was concluded that especially under drought conditions, vermicompost and biochar applications are recommended applications for improving soil properties and increasing plant growth and water use efficiency.
Description
Keywords
Citation
WoS Q
Scopus Q
Source
Volume
Issue
Start Page
End Page
38
