Content of humus of black earth depending on fertilizer system in short-crop rotations
Keywords:
typical leached black earth, humus, fulvic acids, humic acids, group content, crop rotation, fertilizer system.
Abstract
The purpose. To study changes of quality indicators of humus in typical leached black earth depending on fertilizer system of sugar beet in different crop rotations. Methods. Long stationary experiment. Specimens of soil were taken from a stratum of 0 – 30 cm in the season of harvesting of sugar beet. The content of general humus in soil was determined using Tyurin’s method, and group content of humus — using Kononova and Belchikova method. Results. Changes of group content of humus in typical leached black earth under the influence of application of organo-mineral fertilizer system for sugar beet depending on crop rotations are studied. Conclusions. The best quality indicators of humus are determined in grain-tilling crop rotation where the total humic and fulvic acids in organo-mineral fertilizer system makes 1,2% (HA — 0,78, FA — 0,42, linked with R2O3 — 18, with Ca — 82).
Published
2016-09-15
Section
Articles
This work is licensed under a Creative Commons Attribution 4.0 International License.
