Corson Maize
Using a precision seeder, sow maize seed into moist soil at a depth of 3.5cm-5cm when soil temperatures are 12°C and rising. Avoid sowing seed shallower than 3cm as there is an increased risk of nodal root development problems during the establishment phase.
As seed sowing rates vary depending on seed size, follow sowing rate recommendations on product labels/ descriptions or consult your local rural retailer, adviser or DLF Seeds Sales Agronomist.
Before sowing, a soil test should be conducted to identify which nutrients are required to establish and produce a high yielding crop. The general rule for maize silage production are for every 1tDM/ha produced there is a crop requirement of 12.5kgN, 2.6kgP, 12kgK, 0.6kgS and a pH (water) of 5.8-6.2. Depending on soil test results, place Phosphate (DAP) close to the seed for early root development, 100-150kg/ha is a good starting point. A base fertiliser is also applied and incorporated during cultivation. A base fertiliser will make up the remainder of the crop Phosphate requirement, Potassium, Sulphur, additional Nitrogen and any micronutrients required.
A Nitrogen application at 5-6 weeks after sowing ensures high crop yields are achieved. For example a dryland maize crop aiming for 18tDM/ha requires 225kgN/ha. This will ensure maximum yield and optimal establishment can be achieved and maintained.
For insecticide applications best suited to your operation and environment contact your relevant adviser.
Pests such as Black Beetle, Argentine Stem Weevil Larvae, Black Field Earwig, Wireworm, Cutworm, White Grub, Common Armyworm, Corn Earworm, Maize Leafhoppers, Maize Thrips, Corn Aphids, White Fringe weevil, Shield Bugs, Red-Shouldered Leaf Beetles, Locusts, Hoppers and Fall Armyworm (in certain regions) may infest your maize crop and management/regular pest checks are imperative to prevent crop damage.
The ensiling process will have a significant impact on the quality of maize silage produced. To optimise silage quality:
Note: When silage or grain is harvested, there is a high level of nutrient removal which will need to be replaced for future crops.