Stability Valuation of Some Mixtures between Foliar Fertilizers and Combined Herbicides for the Grain Yield of Durum Wheat

Year 2014, Volume: 1 Issue: Özel Sayı-1, 1128 - 1133, 01.03.2014

Grozi Delchev Tsenka Zhelyazkova Antonia Stoyanova

Abstract

The research was conducted during 2010 - 2012 on pellic vertisol soil type. Under investigation was Bulgarian durum wheat cultivar Predel, which belongs to Triticum durum var. valenciae Desf. Factor A included years of investigation. Factor B included no treated check and 3 foliar fertilizers - Lactofol O 8 l ha-1, Terra-sorb - 3 l ha-1, Humustim - 1 l ha-1. Factor C included weeded no treated check and 3 combined herbicides – Axial one - 1 l ha-1, Hussar max OD – 1 l ha-1, Palace 75 WG - 250 g ha-1. All of foliar fertilizers, herbicides and their tank-mixtures were treated in tillering stage of the durum wheat. There is antagonism of combined use by herbicide Hussar max with foliar fertilizers Lactofol and Humustim and by herbicide Palace with foliar fertilizer Lactofol. There is synergism by tank mixtures of herbicide Axial one with the three foliar fertilizers, by tank mixtures of herbicide Palace with foliar fertilizers Lactofol and Humustim, by tank mixtures of herbicide Hussar max with foliar fertilizer Terrasorb. The highest grain yield is obtained by tank mixture Terra-sorb + Axial one. Tank mixtures of complex fertilizer Lactofol with herbicides Palace and Hussar max and tank mixture of organic fertilizer Humustim with herbicide Hussar max are the most unstable for grain yield. Tank mixtures of foliar fertilizer Terra-sorb with the three herbicides, of foliar fertilizer Humustim with herbicides Axial one and Palace and of foliar fertilizer Lactofol with herbicide Axial one are technological the most valuable. They combine high grain yield with high stability with relation to different years. Self-use of foliar fertilizers Lactofol, Terra-sorb and Humustim without herbicides have low estimate and do not be used in the durum wheat crops

Keywords

durum wheat, foliar fertilizers, herbicides, grain yield, selectivity, stability

Stability Valuation of Some Mixtures between Foliar Fertilizers and Combined Herbicides for the Grain Yield of Durum Wheat

Abstract

Keywords

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