Influence of organic fertilizers on the growth and development of buckwheat plants

The purpose of the research is to study the influence of organic fertilizers produced on the basis of the latest technologies, with a balanced content of trivalent chromium on the growth and development of Elena's buckwheat plants under the conditions of the Western Forest-Steppe. Field and laboratory investigations were carried out in the conditions of the western forest-steppe during 2013‒2016 at the experimental field of the Podilsky State Agrarian-Technical University. The soil of the experimental site ‒ black earth is a typical heavy-granular granulometric composition. Organic fertilizers “Bioproferm” and “Bioaktiv” and mineral fertilizers in the form of N120P80K80were introduced under the basic soil cultivation, “Biohrom” ‒ during the vegetation of Elena buckwheat. Agro-technology buckwheat breeding is generally accepted for the conditions of the western forest-steppe of Ukraine. Concomitant studies and observations are performed according to generally accepted techniques. The results of the four-year research on the influence of organic fertilizers produced by the method of biological fermentation and the method of cavitation with balanced content of tri-chromium on the growth and development of Elena's buckwheat plants in the conditions of the western forest-steppe are highlighted. It was established that in the variants of application of organic fertilizers Bioactive, Bioproperty, the field similarity of the buckwheat seed was 4.4‒8.1% higher compared with the control at the density of plants standing in the phase of stacks of 3,308‒3,448 million pounds/ha, or, respectively, at 0.184‒0.324 million pounds/ha more compared to control. The viability of plants in these variants was 94.7‒96.4%, or was 4.6‒6.3% higher compared to control. The highest field similarity ‒ 86.2% and survival ‒ 96.4% was due to the introduction of 10 t/ha of organic fertilizer “Bioproferm” and spraying during vegetation with liquid organic fertilizer “Biohrom” at a dose of 5 l/ha. The use of organic fertilizers BioProms (10 t/ha), produced by the method of biological fermentation, with a balanced content of trivalent chromium under the basic cultivation of soil and liquid organic fertilizer Biohrom (5 l/ha), made by the method of cavitation, during the vegetation of plants contributed the creation of more productive agrocenoses, which significantly accelerate the assimilation processes of buckwheat plants and increase the area of their leaf surface. In the phase of budding, it was 10.8 thousand m2/ha more, and in the flowering phase ‒ by 8.1 thousand m2/ha more compared to the control.