Kalichkin
Vladimir Klimentevich,
Doctor of Agricultural Sciences, Chief Researcher, Novosibirsk State Agrarian University,
e-mail: vk.kalichkin@gmail.com

Organic farming in the forest-steppe of Western Siberia: assessment of the frequency of atmospheric droughts based on the SPI index
Maksimovich K.Yu., Kalichkin V.K., Fedorov D.S., Galimov R.R.
         2022,    N 5