Abstract
It has been established that the 70-year use of fertilizers in a cereal-sugar beet crop rotation in the forest steppe of the Central Chernozem Zone changes considerably the fertility of leached chernozem and increases the productivity of sugar beet by 11.7–42.1%, barley by 66.5–105.2%, oats by 65.8–76.4%, and winter wheat by 54.0–73.1%. Pea productivity decreases by 30.2–55.4%.
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