Zaryshniak A. S., Sypko A. O., Strilets' O. P., Zatserkovna N. S., Zinchenko O. A., Sinchuk G. A., Goncharuk G. S., Grytsyshyna L. G., Kostaschuk M. V., Mazur G. M.
Pages: 20-27.

Full article: 

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Abstract

The purpose. To determine optimum dozes and ways of use of defecate which provide stabilization of acid-alkaline balance of grey forest sub-acidic soil and leached sub-acidic chernozem at biologization of cultivation of sugar beet in conditions of Right-bank and Central Forest-Steppe of Ukraine. Methods. Physical-and-chemical, agrochemical analysis of soil and plants. Results. The most efficient for soil-absorbing complex of grey forest sub-acidic soil were 1,5 dose of CaCO3 on hydrolytic acidity (CaCO3 (9,0 t/hectare in physical weight) with the background of level-by-level entering of organic-mineral fertilizers. Thus it was achieved the maximal neutralization of acidity of soil: parameter pHsalt of soil solution has increased up to 7,2, hydrolytic acidity of soil lowered to 0,42 mg-eq/kg of soil with simultaneous increase of the sum of absorbed bases up to 25,7 mg-eq/kg of soil and degree of saturation with bases to 95,3%. At entering ameliorant under plowing on leached typical sub-acidic chernozem in 1,5 dose of CaCO3 (7,5 t / hectare in physical weight) they fixed increase of pHsalt up to 6,9, that corresponded to neutral degree of acidity of soil. At that dose of ameliorant hydrolytic acidity of soil dropped to 1,50 mg-eq/kg of soil with simultaneous increase of the sum of absorbed bases up to 28,5 mg-eq/kg of soil. Content of mobile links of calcium (CaO) increased up to 175 mg-eq/kg of soil with simultaneous increase of mobile magnesium (MgO) up to 24 mg-eq/kg of soil. Conclusions. Use of defecate on sub-acidic grey forest soil and leached sub-acidic typical chernozem at biologization of cultivation of sugar beet promotes stabilization of acid-alkaline balance of soils.

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Key words: biologization, soil, hydrolytic acidity, ameliorant, soil-absorbing complex, acid-alkaline balance.

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