Yazar "Doran I." seçeneğine göre listele

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    Effect of row spacing and phosphorus on seed yield and yield components of narbon bean (Vicia narbonensis) in Diyarbakir, Turkey
    (2002) Basbag M.; Doran I.; Samanci B.
    A study was conducted during 1999-2000 and 2000-2001 to determine the effect of row spacing (20, 40 and 60 cm) and phosphorus levels (0, 13.2, 26.4, 39.6 and 52.8 kg/ha) on seed yield and yield components of narbon bean (Vicia narbonensis) at research fields of Dicle University in Diyarbakir, Turkey. The effect of row spacing was not significant on narbon bean seed yield but phosphorus significantly influenced yield. The highest seed yield (1606.8 kg/da) and improvement in yield components were observed from 26.4 and 39.6 kg P/ha and 40 cm row spacing combination.
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    Öğe
    Effects of farmyard manure and chemical fertilizers on the nutritional status of the loquat trees
    (Triveni Enterprises, 2003) Doran I.; Kaya Z.; Caglar S.
    The nutritional status of the loquat trees was investigated using cattle manure and commercial fertilizers for three years. The farmyard manure increased: N, P, K, Mg, Fe and Zn contents of the leaves. No significant difference was found between the fertilizer types for trunk growth. Yield efficiency was nearly doubled by application of farmyard manure. Fertilizers did not affect the weight and shape of the fruits; however, commercial fertilizers led the lower total acidity in fruits. It was concluded that the loquat trees grown in sandy soils could fulfill their principal nutrient requirements for growth and commercial yield with application of farmyard manure.
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    Öğe
    Influence of nitrogen applications on seed yield and chemical ingredient of winter rapeseed
    (Chemical Publishing Co., 2008) Karaaslan D.; Sürücü A.; Doran I.; Yildirim M.
    In this experiment, it was purposed to investigate effects of different nitrogen applications on seed yield, oil and protein content and nutrient uptake of winter rapeseed grown at field conditions. Three cultivars of winter rapeseed (Brassica napus L.) askona, karola and silvia, were used. The nitrogen applications applied to the soil were 0, 60, 120 and 180 kg N ha-1 as ammonium sulfate. Nitrogen concentration increased seed yield compared to untreated plants in all three cultivars. The highest seed yield was obtained from the plants received the highest nitrogen rate (180 kg N ha-1) for all three cultivars. When compared to seed yield of cultivars, the highest seed yields was in cultivar, askona with 180 kg N ha-1 and the lowest one was in the askona without nitrogen application too. The protein contents in all three cultivars were increased with the highest nitrogen content compared to untreated plants. However other nitrogen applications did not change protein content consistently. The changes in oil content were also not consistent among nitrogen levels and cultivars. Different nitrogen doses resulted in changes in nutrient levels in leaves of all three cultivars in some way. It can be revealed that nitrogen application at right doses can increase seed yield, oil and protein contents by increasing macro and micro nutrition of plants.