03. Seasonal dynamics of organic substances of typical black earth of Right-bank Forest-steppe region depending on the level of fertilizing

Balaiev A. D., Bogdanovych R. P., Olijnyk V. S.
Pages: 16-19.

Full article: 
Abstract
The purpose. To determine Influence of alternatives of fertilizing on seasonal dynamics of organic sub­ stances of typical black earth. Methods. Field, laboratory-analytical, mathemallcal and statistical. Results. It is fixed that use of straw and green manure crops together with fertilizers effects seasonal cydicity of or· ganic substances in typical black earth. Conclusions. At use of fertilizer (straw 1,2 t/he+N12+green manure crop+N78P68K68) on typical sandy loam black earth of Right-bank Forest-steppe region It has been observed high amplitude of oscillation of the content of organic substance, humus, mobile humus matters from April till October. Entering of great quantity of fresh organic substance in soil has reinforced intensity of restoration of these indexes to reference level.

Key words: typical black earth, organic substance, humus, mobile humus matters, straw, green manure crops, fertilizers.

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