About the Journal

Authors:

O. V. FEDOTOVA, postgraduate student,

I. V. GREKHOVA, doctor of biological sciences, professor,

STATE AGRARIAN UNIVERSITY OF NORTHERN URALS (7 Respubliki Str., 625003, Tyumen)

YU. M. DERYABINA, leading engineer,

V. D. TIKHOVA, candidate of chemical sciences, head of laboratory,

NOVOSIBIRSK INSTITUTE OF ORGANIC CHEMISTRY NAMED AFTER N. N. VOROZHTSOV OF SIBERIAN BRANCH OF RAS (9 Akademika Lavrentyeva Str., 630090, Novosibirsk)

Abstract. This article discusses the results of elemental and spectral analyses of alkaline and acidic fractions in the production of humic preparation Rostock in comparison with finished products. Conducted study of the elemental composition showed that the acidic fraction is different from the alkaline fraction and the drug has a lower content of carbon and nitrogen, and ash content above 28 %. When calculating the mass percent composition on a dry ash-free weighed in fractions dominated by oxygen, in the preparation of the contents of carbon and oxygen is not very high. The Rostock preparation the content of nitrogen exceeds the alkaline fraction by 44 %, the acid fraction by 4 times, but it contains less oxygen – 15 and 21 % respectively. Mass fraction of hydrogen in dry ash-free weighed in the acidic fraction is slightly different from the alkaline fraction and drug. Given the atomic masses of elements the predominant share in the structure of fractions and the drug is given to hydrogen. The atomic ratio of hydrogen and oxygen in the acidic fraction above is alkaline by 21 and 23 % of the drug 18 and 49 % respectively. Spectra of the alkaline fraction and of the drug are of the same full curve – almost 85 %. The coincidence of the IR spectrum of drug with a spectrum of acid fraction does not exceed 30 %. In the fractions compared to the drug the content of calcium, magnesium, iron, strontium and manganese is higher, and barium and zinc – lower. To enhance the effectiveness of the acidic fractions as a regulator of growth and development of plants in the preparation of the drug you should consider adding in the supernatant solution of potassium and nitrogen.