Izvestiya of Saratov University.
ISSN 1819-7663 (Print)
ISSN 2542-1921 (Online)


criteria of aridity

Climatic Risk in Agricultural Production and Some Ways Their Overcome

This article touches upon daily urgent factfiles during the 30-year period. The author of the article calculates all famous in literature criteria of drought. But no one of them reflects a degree of a strong drought when more than 70% of crop dies. The author introduces first the physiological coefficient of drought