Effect of nitrogen fertilization and the sowing rate on the productivity of Marokan coriander (Coriandrum Sativum L.) variety in the region of Plovdiv
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Author: Vanya Delibaltova, Ivan Yanchev, Hristofor Kirchev, Stamen Georgiev
The field experiment was carried out on the Scientific-Experimental and Introductory Facility of the Department of Plant Growing at the AU – Plovdiv in the 2008-2011 period. The experiment was performed by means of a block method with four replications; experimental field area - 15 m2. The effect of four nitrogen (0, 80, 120 и 160 kg/ha) and five sowing (150, 200, 250, 300 and 350 g.s./m2) rates on the coriander yield and yield components of the Marokan variety were determined. The analysis of the results showed that the experimental factors (nitrogen fertilization and sowing rate) in combination with the meteorological conditions during the years of the study had a significant influence on the coriander yield and yield components of the Marokan variety. During the study period (2008-2011) the maximum values of the coriander yield components (number of umbels per plant, seed-weight per plant, 1,000-seed weight) and the highest seed yield (2,492 kg/ha) was recorded for the incorporation of 120 kg N /ha and sowing rate of 250 g.s./m2, while the lowest ones were for the variant without nitrogen fertilization and sowing rate of 150 g.s./m2. The most suitable nitrogen rate for the Marokan variety of coriander – 120 kg/ha and the most effective sowing rate of 250 g.s./m2 is recommended for the Plovdiv region.

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