Fertilization Recommendations for Cereals

Winter Wheat

Autumn application (BBCH 12) to promote tillering is common. After winter dormancy (BBCH 21) supports the start of vegetation. A late application 4–6 weeks before harvest can further improve grain fill and quality.

Spring Wheat

Early applications (BBCH 15 and again 14 days later) support tillering and vegetative development. A late application 4–6 weeks before harvest can further improve grain fill and quality.

Winter Barley

During crop protection at BBCH 12 in autumn, apply 1 L/ha (ensure at least 10 days of vegetation remain). After winter dormancy at BBCH 21 (start of growth), apply 1 L/ha again. At BBCH 31–32 (stem elongation, first node visible), apply 1 L/ha again.

Spring Barley

From BBCH 15 apply 1 L/ha and repeat 14 days later with 1 L/ha. At BBCH 31–32 (stem elongation, first node visible), apply 1 L/ha again. Similar to wheat: supports tillering, stem elongation, and grain fill. Earlier use in spring barley supports early development.

Oat

From BBCH 15 apply 1 L/ha and repeat 14 days later with 1 L/ha. At BBCH 31–32 (stem elongation, first node visible), apply 1 L/ha again. Supports tillering and vegetative development; promotes stem elongation and later grain formation.

Rye (Winter Rye)

During crop protection at BBCH 12 in autumn, apply 1 L/ha (ensure at least 10 days of vegetation remain). After winter dormancy at BBCH 21, apply 1 L/ha again. At BBCH 31–32, apply 1 L/ha again. Promotes tillering in autumn and early spring growth; supports stem elongation.

Maize (Corn)

Early application before, during, or after sowing (2-leaf stage) supports emergence and early development, which is critical in maize. Another application from BBCH 14 (6–8 leaf stage) is also advisable as this is a key growth phase.