Ömer KONUŞKAN, İbrahim ATIŞ, Hüseyin GÖZÜBENLİ

Effects of foliar boron fertilization at early vegetative stages on silage yield and quality parameters of maize

Aims: This study was conducted to determine the effects of various boron quantities applied at different vegetative growth stages of maize as foliar application on hay and silage yield and quality in Mediterranean ecological conditions. Methods and Results: Different boron fertilizer doses (0, 4, 6, 8 kg ha-1 disodium octaborate tetrahydrate (ETIDOT-67 (Na2B8O13.4H2O)) applied at early vegetative stages of maize (V2, V4 and V2+V4 as two portions) and the effects of boron on yield and quality prameters of maize were examined. As a result of study, higher silage and hay yields were observed at all boron applications in comparison with control and the highest yields (68.43 ton ha-1 silage and 21.58 ton ha-1 hay yield) were obtained at 8 kg ha-1 boron application. Also other boron doses had the statistically similar results. Although the highest yields in terms of application times were observed at boron applications at V2+V4 stages as two portions, the differences between the application times were not statistically significant Conclusions: We recommend that 4 kg ha-1 boron fertilizer application at early vegetative stages of maize for high silage yield and quality. Significance and Impact of the Study: Limited researches were performed on boron effects on hay and silage yields and qualities of maize up to now. This study revealed that the effects of boron application at early vegetative period of maize. Also, it is expected to be a source for further studies.

Erken gelişme döneminde yapraktan bor uygulamasının mısırın hasıl verimi ve kalitesi üzerine etkileri

Amaç: Bu çalışma, Doğu Akdeniz ekolojik koşullarında, mısırın farklı vejetatif gelişme dönemlerinde uygulanan bor miktarlarının mısırın silaj verimi ve kalitesi üzerine etkilerini belirlemek için yapılmıştır. Yöntem ve Bulgular: Mısırın erken vegatatif gelişme dönemlerinde (V2, V4, V2V4 ), farklı borlu gübre dozları (0, 4, 6, 8 kg ha-1 . Disodyum oktaborat tetrahidrat(ETİDOT-67 (Na2B8O134H2O)) uygulanmış ve mısırın hasıl verimi ve kalitesine etkileri incelenmiştir. Yapılan çalışma sonucunda, tüm bor uygulamalarında kontrole göre daha yüksek silaj ve kuru ot verimleri gözlemlenmiş ve en yüksek verimler (68.43 ton ha-1 silaj ve 21.58 ton ha-1 kuru madde verimi) 8 kg ha-1 bor dozunda elde edilirken, diğer bor uygulama dozlarında da istatistiksel olarak benzer sonuçlar elde edilmiştir. Uygulama zamanlarında en yüksek verim V2 + V4 gelişme döneminde belirlenmiş olmakla birlikte, uygulama zamanları arasındaki fark istatistiksel olarak önemli bulunmamıştır. Genel Yorum: Yüksek silaj verimi kalitesi için mısırın erken vejetatif gelişme dönemlerinde 4 kg ha-1 bor uygulanması önerilmektedir. Çalışmanın Önemi ve Etkisi: Şimdiye kadar mısırın hasıl ve silaj verimi ile kalite özellikleri üzerine bor gübrelemesinin etkileri konusunda sınırlı araştırmalar yapılmıştır. Bu çalışma ile mısırın erken vejetatif gelişme döneminde bor uygulamasının etkileri ortaya koymuştur. Ayrıca, bu çalışmanın daha sonraki çalışmalar için kaynak olması beklenmektedir.

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