Аграрный вестник Урала № 04 (70) 2010Агрономия
УДК:631.417.2 : 631.445.24
INFLUENCE OF LONG APPLICATION OF SYSTEMS OF FERTILIZER ON THE CONTENTS OF LABILE ORGANIC SUBSTANCE OF SOD- PETTY-PODZOL HARD-LOAMY SOIL.
In thelong-term field experiments (40 years) we studied the influence of different fertilization systems onthe content of labile organic substance extracted from soil with solvents ofvarious ability. We found that there is a close correlation between the contentof the fractions and yield of oats.
Conservative and labile organic matter, humus, extractant, mineral and organic fertilizers, correlation, yield.
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