Abstract
It has been established that Humatal Nano has a strong influence on the productivity of winter wheat of the Knop variety, which provides significant yield increases ranging from 0.12 to 0.95 t/ha; dose of N64P64K64. The drug Azotofit should be used on an uncomfortable background, regardless of its predecessor, or when making N32P32K32. The use of the drug Stimpo, regardless of its predecessor and on all the backgrounds of mineral nutrition, is characterized by weak efficiency with increases in yield within the limits of the smallest significant difference. The best economic indicators with the conditional net profit of 17.5 thousand UAH/ha a nd the level of profitability of 184.1% were obtained on the variant with the introduction of the main fertilizer in the dose of N32P32K32 and top dressing with the Humatal nano biological product. The same variant of the basic application of mineral fertilizers with additional dressing of Humatal nano and nitrogen fertilizer in a dose of N60 was also effective from an energy point of view – the energy increase was within 43.5-44.7 GJ/ha, and the energy ratio increased to 2.43-2.59.
Keywords:
winter wheat, biological products, predecessor, mineral fertilizers, yield, quality, economic and energy efficiency.