The article provides the results of 2014-2016 studies of the effect of macro- and micro fertilizers in the link of field crop rotation on fodder productivity and weed infestation on the background of basic and presowing cultivation of leached chernozem. The link of the crop rotation is presented by: (barley + meadow clover - meadow clover of 1 year of use -meadow clover of 2 year of u... https://www.roneverhart.com/Leipa-hedelmakori-musta-metalli-o-27-5-cm/