Wydanie 358(57)1 2021

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Open Access
Formation of Corn Productivity in Crop Rotation Depending on Long-Term Fertilization and Liming
(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2021) Stasiv, Oleh; Olifir, Yuriy; Institute of Agriculture of the Carpathian Region of NAAS, Obroshyne, Lviv, Ukraine; Institute of Agriculture of the Carpathian Region of NAAS, Obroshyne, Lviv, Ukraine
Corn (Zea mays L.) is one of the main source of feed and food resources. The importance of this culture in the world economy continues to grow. In Ukraine corn is an export-oriented crop of universal purpose and high potential. Based on the results of research in the ninth rotation of long-term stationary experiment, it was found that in the Western Forest-Steppe in four-field crop rotation on Albic Stagnic Luvisol the highest productivity of corn 73 t . ha–1 is formed by organo-mineral fertilizing system with systematic joint application of 10 t . ha–1 manure, N65Р68К68 on the background of periodic liming with 1.0 n CaCO3 by hydrolytic acidity.It is shown that long-term unilateral application of mineral fertilizer system (more than 50 years) on acidic soil along with the accumulation of nitrogen compounds increases the acidity and content of mobile aluminum compounds, leads to blocking the activity of enzyme systems, reducing absorption and transformation of nutrients and in consequence the formation of low-yield corn at the level of control without fertilizers.