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


crop

Droughts and Evaluation their Criteria

In this article, on the basis of daily meteorological material over the thirty years period the drought criteria are according to Selyaninov, Shashko, and Kabanov’s works. The most productive indicators are selected; best rate the degree of the aridity over the particular period. The criteria are considered in the drought insurance and subsidy payments to agricultural producers in the lean years on the regional and state level. The analyzed coefficients do not fully show the rate of drought, i.e.

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