For citations:

Sorokin I.B., Gaag A.V., Chudinova I.V., Sirotina E.A. Problems of sour soil fertility increasing in Tomsk region. Bulletin of NSAU (Novosibirsk State Agrarian University). 2018;48(3):31-37. (In Russ.) https://doi.org/10.31677/2072-6724-2018-48-3-31-37