مرکز منطقه ای اطلاع رساني علوم و فناوري - Effect of the Different Organic Fertilizer Sources and Doses on Yield in Organic Tobacco (Nicotiana tabacum L.) Production

Abstract :

This research was carried out to determine the effect of different sources and doses of organic manure on some chemical properties and fertility at Xanthi/2A tobaccos in Samsun-Bafra conditions in 2 years. The study at farmers land in 2010 and 2011, three different organic fertilizer (Compost OMU Faculty of Agriculture, Yeşil Küre Chicken Manure and Biofarm), 4 doses (0-5-10-15 t/h), based on randomized complete block design with 3 replicates. The result of the statistical analysis has displayed that the differences between the years is very important in terms of plant height, number of leaves, leaf yield and nicotine ratio. Types of fertilizer had a significant impact on the stem diameter and reducing sugar content. Besides, doses had a significant impact in all specifications except for number of leaf. It was found out that yearxdose interactions deeply affected reducing sugar content and the size of body. Because of the fact that all other properties were within reasonable limits, it was detected that the nicotine rate changed between 1.8-2.1% ranges. Further, it has been determined as one result of regression analysis that the fertilizer application, which can be by any type of the fertilizers between 9.5-10 t/h ranges, will meet the market demand.