Формування надземної маси сортів пшениці озимої залежно від оптимізації живлення в умовах Південного Степу України / Formation of the top winter wheat varieties depending on the optimization of nutrition in the Southern Steppe of Ukraine
Journal Title: Вісник Львівського національного аграрного університету. Агрономія - Year 2018, Vol 22, Issue
Abstract
The researches results of top winter wheat growth depending on varietal characteristics and nutrition are showed. The processes of accumulation of crude top soil mass by winter wheat plants during the spring – summer period of vegetation in 2011–2016 depended on a number of factors, in particular from the weather and climatic conditions of the year, the background of nutrition, and they were the most intensive in the period of the phase of the plants’ output in the tube to the earing earing. So, for the cultivation of winter wheat Zamozhnіst' variety in the ear staining phase was observed to be more intensively grown by the investigated index compared with the previous phase of plant development by 488–1281 g/m2 or by 23,4–35,7 % depending on the way of nutrition. For the cultivation of winter wheat, variety Zamozhnіst' by the accumulation of raw biomass of plants in the years of research was a bit more intensive than the Kol'chuga variety. On average, over the years of research, in the control of raw biomass of plants variety Zamozhnіst' in the phase of plants’ yield in the tube has accumulated 1595 g/m2, the ear staining phase – 2083 g/m2, and milk grains – 2276 g/m2, which is 84–107 g/m2 or by 3,8–5,3 % which is more compared to the raw mass of plants of the Kol'chuga variety. The same situation was observed in the variants of the experiment. The largest amount of raw top soil mass was formed by plant verieties. The mineral fertilizer yield for pre-sowing cultivation in a dose of N30P30 and post-root crop fertilization with Escort-bio – 1347–4327 g/m2 depending on the phase of growth and development of plants. The process of accumulation of dry mass in the planting phase was slow, and the difference between the investigated variants was only 17–134 g/m2 for the Kol'chuga variety and 26–155 g/m2 for the Zamozhnіst' variety. However, already from the phase of the plants’ we considered in the tube a significant difference depending on the nutrition of plants and the variety at 8,3–48,9 and 12,0–45,3 %, with the advantage of the option N30P30 + Escort-bio. The maximum values of all this green and absolutely dry top masses were reached in the ear staining phase for cultivating the variety «The prosperity» and by the applying the combination of mineral fertilizers in a dose of N30P30 and root-crop fertilization of crops with modern regenerative preparation of Escort-bio.
Authors and Affiliations
A. Panfilova, V. Gamayunova
Keywords
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