Izmenenie vodno-fizicheskikh svojstv obyknovennogo karbonatnogo chernozema i produktivnosti oroshaemogo sevooborota pod dejstviem udobrenij i obrabotki pochvy v usloviyakh stepnoj zony Kabardino-Balkarii.

abonos verdes agua del suelo chernozem chernozems crop yield eau du sol engrais npk engrais vert estepas estructura del suelo farmyard manure fertilizantes npk green manures irrigated soils labranza npk fertilizers organic matter content rendement des cultures rendimiento de cultivos rotation culturale rotational cropping soil structure soil water steppe steppes structure du sol suelo irrigado tillage travail du sol