Pre-sowing bacterial treatment and chemical fertilizer application impact on yield capacity and grain quality of hulless (Avena nuda L.) and hulled oats (Avena sativa L.)

Abstract

The problems of introduction into practice of intensive oats cultivation technologies in the North-Eastern part of thForest-Steppe of Ukraine have been considered. The oats plant yield capacity depends on mineral nutrition optimizationIt was defined that hulless oat cultivars have more expressed response level of yield capacity on pre-sowing treatmenwith composition of Diazophyt and Microhumin bacterial fertilizers, that allows to reach closer to the level of hulleoat yield. The highest crop yield (for all cultivars) provided by combination of pre-sowing treatment with Diazophy+ Microhumin composition and application of N60 P60 K60 with foliar nutrition in tillering and panicle forming phase bNutrivant Plus (2 kg/ha) + Urea (46.2%) 30 kg/ha. The maximum additional yield was fixed in Salomon cultivar with presowing Diazophyt + Microhumin treatment (+0.73-0.75 t/ha). Vegetative development and yield capacity of oats cultivarin the experiment revealed the group reaction dynamics on pre-sowing treatment, doses and ways of fertilizer applicatiounder conditions of the North-Eastern Forest-Steppe of Ukraine. The oat cultivar reaction specifies on optimization ozonal growing technologies for hulled and hulless cultivars. Thus, it is considered the possibility of increasing crop yielby improving of cultivation technology separately in the context of hulless and hulled groups of cultivars.