TY JOUR TI Geometric and moisture parameters of drip irrigation contours of loamy chernozems KW drip irrigation KW drip moistening KW moisture contour KW contour size KW soil moisture KW moisture isopleths JO Melioration and Water Management AU Vasil'ev, S.M. AU Shtan'ko, A.S. PY 2020 IS 2019 PB ANO Editorial Board Melioration and water management