ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785
 

INFLUENCE OF FOLIAR FERTILIZATION ON THE PHENOLOGICAL DEVELOPMENT OF RAPESEED

Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 1
Written by Radka IVANOVA, Zhivko TODOROV

The experiment is conducted in 2012-2015 in the Training and Experimental Base of the Department of Plant Growing at Agricultural University of Plovdiv. The experiment is set in block mode with four repetitions, with size of the cultivated plot of 20 m2, with winter rapeseed type - the Visby hybrid. The following leaf fertilizers were tested: Lactofol B - 4000 ml/ha, Litovit® - 2000 g/ha and Fertiactyl Starter - 3000 ml/ha, and untreated control variant. The rapeseed sowing was done 1-10. IX, 1-10. X, 10-20. X, 20-30. X. The leaf fertilization was performed in the 2-4 leaf stages for the first two sowing periods and in 1-2 leaf stages for the second two sowing periods. As a result of the experiment, leaf fertilization has been found to affect the development of the phenophases. The strongest stimulation effect during the three years of the experiment at the different sowing periods is obtained in the variant treated with Fertiactyl Starter - 3000 ml/ha.

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