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

STABILITY VALUATION OF SOME MIXTURES BETWEEN FOLIAR FERTILIZERS AND ANTIGRAMINACEOUS HERBICIDES FOR THE GRAIN YIELD OF DURUM WHEAT

Published in Scientific Papers. Series A. Agronomy, Vol. LIX
Written by Grozi DELCHEV

The research was conducted during 2010 - 2012 on pellic vertisol soil type. A field experiment was carried out with durum wheat cultivar Deyana (Triticum durum var. valenciae Desf.). Factor A included the years of investigation.Factor B included no treated check and 3 foliar fertilizers - Humustim - 1 l/ha, Lactofol O - 8 l/ha, Masterblend (20-20-20) – 3.5 kg/ha-. Factor C – included weeded, no treated check and 4 antigraminaceous herbicides - Foxtrot 69 EB (fenoxaprop-ethyl) – 1 l/ha, Axial 050 EC (pinoxaden) - 900 l/ha, Topic 080 EC (clodinafop) - 450 l/ha, Traxos 045 EC (pinoxaden + clodinafop) – 1.2 l/ha. All of foliar fertilizers, antigramunaceous herbicides and their tank mixtures were treated in tillering stage of the durum wheat. There is antagonism of combined use by antigraminaceous herbicide Foxtrot with three foliar fertilizers Humustim, Lactofol O and Masterblend. The grain yield increase in compared to self-use of the preparations is only 0.6 - 0.9%. There is an additive effect by tank mixtures of fertilizers Humustim, Lactofol O and Masterblend with antigraminaceous herbicides Axial, Topic and Traxos. The highest grain yields are obtained by these tank mixtures. Tank mixtures of herbicide Foxtrot with foliar fertilizers Humustim, Lactofol O and Masterblend are the most unstable for grain yield. Tank mixtures of herbicides Axial, Topik and Traxos with organic foliar fertilizer Humustim and complex foliar fertilizers Lactofol O and Masterblend are technological the most valuable. They combine high grain yield with high stability with relation to different years. Self-use of foliar fertilizers Humustim, Lactofol O and Masterblend without herbicides have low estimate and do not be used in the durum wheat crops.

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