(Unit/t of production)
(Unit/t of production)
N
12
12
Very Sensitive
P2O5
4.2
4.2
Very Sensitive
K2O
12
12
Very Sensitive
MgO
1.9
1.9
Sensitive
SO3
2.2
2.2
Sensitive
TE
Zinc (Zn) from the 6-leaf stage, boron (B) enhances fecundation
Fertilization recommendations
Silage maize requires nutrients in concentrated form, especially in the first phase of plant development. Afterwards, most of the nutrients are mainly translocated within the plant or used for water absorption (potassium).
The nutrients required for silage maize can be applied prior to cultivation and then between the four to ten leaves growth stage. The largest nutreint requirement is during the first phase of growth, and multiple applications have shown no additional yield. Phosphorus and potash fertilizers are also best applied prior to, or directly at sowing. Farmyard manure is worked into the soil prior to sowing. Too late applications of mineral N increase the risk of leaf burning and delayed ripening.
Placed or banded fertilisation in the form of NP fertiliser brings yield benefits, especially in heavy soils, in cold locations and in soils with low phosphate content, as the still short roots can feed directly from the fertiliser belt. Temporary phosphate deficiency in juvenile development can be adressed with P-concentrated liquid fertilizer or water-soluble nutrient salts.
Liming can be done before the sowing or even in autumn. The maximum quantity of CaO should be 1,500kg/ha– preferably in the form of calcium carbonate.
Yield parameters of silage maize:
The yield formation of maize results from optimal distribution of the approximately 9-11 plants per m² and strong plants with stable, long-growing stems. Particularly important for a high energy density in the harvesting substrate, however, is a strong and healthy cob in silage maize.
First application
Second application
Borealis L.A.T GmbH
St.-Peter-Strasse 25
4021 Linz, Austria