Bu çalışma, farklı biçim sıklıklarının dallıdarı (Panicum virgatum) bitkisinde ot verimi ve bazı silaj yem kalite özelliklerine etkisini saptamak amacıyla yürütülmüştür. Çalışma 2017 yılında, Ege Üniversitesi Ziraat Fakültesi Tarla Bitkileri Bölümü’nün Bornova deneme tarlalarında gerçekleştirilmiştir. Üç tekerrürlü olarak düzenlenen tarla denemesinde, 5 yaşındaki ‘Cloud Nine’ isimli dallıdarı genotipi kullanılmıştır. Denemede, bitkiler üzerinde altı farklı biçim sıklığı (30, 60, 90, 120, 150, 180 günde bir) test edilmiştir. Çalışmada, yaş ot verimi, bitki boyu, kuru madde oranı, silaj pH’sı, ham protein oranı, metabolik enerji (ME) ve nispi yem değeri gibi özellikler ölçülmüştür. Sonuçlar, biçim sıklıklarının dallı darının yaş ot verimi ve bazı silaj yem kalite özellikleri üzerinde önemli etkilerinin olduğunu, biçim sıklığı azaldıkça ME ve nispi yem değerlerinin (NYD) azaldığını göstermiştir. Akdeniz ikliminin sulu koşullarında yetiştirilen dallı darı bitkisinde 60 günde bir yapılan biçimlerin yaş ot verimi göz önüne alındığında en başarılı biçim sıklığı olduğu belirlenmiştir. ME ve NYD yönünden ise en yüksek değerler 30 günde bir biçim yapılan uygulamalardan elde edilmiştir.
This study was carried out with the aim of determining the effect of different form frequencies on the herb production in the plants (Panicum virgatum) and some silage food quality characteristics. The study was conducted in 2017 in the Bornova experimental fields of the Department of Farm Plants of the Ziraat Faculty of the University of Ege. In a three-wheeled field test, a 5-year-old flagship genotype called 'Cloud Nine' was used. In the trial, six different forms on plants were tested (30, 60, 90, 120, 150, 180 days). The study measured characteristics such as age grass productivity, plant length, dry substance ratio, silage pH, raw protein ratio, metabolic energy (ME) and relative feed value. The findings showed that the slurry of the form frequency has a significant impact on the age grass productivity and some silage feed quality characteristics, as the form frequency decreases, the ME and the relative feed values (NYD) decreases. It has been determined that the most successful form frequency is the form forms made one every 60 days in the water condition of the Mediterranean climate, taking into account the age grass productivity. In ME and NYD, the highest values are obtained from applications made in a form every 30 days.
This study was conducted to determine the effect of different cutting frequencies on the forage yield and some silage forage quality properties of switch grass (Panicum virgatum). The experiment was carried out at Bornova experimental fields of Department of Field Crops, Faculty of Agriculture, and Ege University in 2017. The experimental design was in complete randomized blocks, with three replications. 5 years old, ‘Cloud Nine’ genotype of switch grass was used as crop material. In the experiment, six different cutting frequencies (30, 60, 90, 120, 150, 180 days) were tested on the crops. Some characteristics were measured such as fresh forage yield, crude protein concentration and metabolisable energy (ME). Results indicated that there were significant effects of cutting frequencies on the fresh forage yield and some silage quality characteristics of switch grass. ME and relative forage values (RFV) decreased as cutting frequency decreased. It was recommended that the production of switch grass using 60-day intervals were the most successful cutting frequency regarding the forage yield to the regions with Mediterranean-type climates under irrigation. The highest ME and RFV were obtained from the applications which were made every 30 days.
Journal Type : Uluslararası
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