Shaping harvest grain winter wheat in steepe zone of Ukraine depending on variety, fertilizer and predecessor
Journal Title: «Таврійський науковий вісник» - Year 2018, Vol 100, Issue 1
Abstract
To article these influences of complex interaction factor sort-predecessor-fertilizer on realization of productivity of winter wheat under growing its in conditions southern Steppe of Ukraine. Research was conducted during 2013-2015on Mikolayiv state agricultural research station of Institute of irrigated agriculture of National agrarian Sciences of Ukraine. The object of research served as recognized in the south of Ukraine varieties of the wheat winter Kuyalnik, Kosovitca, Hersonskaya bezostaya, Antonovka and Blagodarka odesskaya. Also scheme of experience included five variants of nitrogen-phosphoric fertilizer application: without fertilizers (control), N30P60, N30Р60+N30 in phase of renewal vegetation period (RVP), N30Р60+N30 in phase RVP +N20 in phase of stooling stage (SS) and N30Р60+N60 in phase RVP +N20 in phase SS, on which were superimposed three predecessors: black pair, winter wheat, sunflower. Average yield of winter wheat on experience at research years has formed 2,60 t/ha. On without fertilizers background has got productivity grain 1,48-2,82 t/ha. Fertilizer application N30P60 under pre-sowing soil cultivation raised yield on 0,17-0,66 t/ha, early-spring nutrition in phase of renewal vegetation period – on 0,64-1,09 t/ha, nutrition in phase of in phase of stooling stage – on 0,43-1,40 t/ha. At the average on fertilizers background the maximum corn productivity on black pair have provided the variety Blagodarka odesskaya and Kuyalnik – 4,40-4,45 t/ha (difference was within mistake of experience). At accommodation variety on harvested field this trend ends. The most supportive on fertilizers and more productive variety Kuyalnik turned out to be on predecessor sunflower.
Authors and Affiliations
Л. В. Андрійченко, Т. В. Качанова
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