Early Desiccation
This is a determining aspect for achieving good planting quality, the so-called early desiccation is essential for the seedbed to be in good condition. The desiccation around 30 days before sowing aims to eliminate possible allelopathic effects of cover crops, eliminate competition for water, light and nutrients, in addition to avoiding possible disturbances at sowing time caused by plants that are not completely dead . Situations like these can generate problems such as seed wrapping, where it is not completely covered by the soil, causing delay in emergence or even non-germination.
Another aspect of great importance in the use of early desiccation is the use of insecticides, which can reduce and even zero the levels of surviving pests in crop residues that can bring attack by caterpillars and bugs on corn plants.
Seeding
The timing of sowing corn is crucial for the success of the crop, as the number of plants per hectare is the first and main component of yield, especially if we take into account that the crop does not have the capacity to occupy the space left by a plant that did not develop.
Among the pillars of sowing success are:
Planting depth (3 to 5 cm);
Soil Moisture
Seeding Speed (4 to 6 km/h)
Choice of discs and rings (mechanical seeders)
In seeders with a mechanical seed distribution system, it is essential to choose the correct disks and planting rings, as if they are not adequate, they can cause mechanical damage, failures in the distribution and deposition of double seeds, interfering with the plant stand that the producer has planned.
Conclusion
Uniform crops and well-established plants are the first step to reach yields above 200 scs/ha in corn crop.
