Optimization of mineral nutrients and sunflower productivity in northern zone of Krasnodar region

It is determined that an application of mineral fertilizers in dozes N40P60 proved the oil seeds yield 3.5-3.9 t/ha with oil content up to 46-47 % is the most effective for maximum realization of sunflower productivity on chernozem of Krasnodar region in conditions of unsteady moistening.