The administrator of your personal data will be Borealis L.A.T GmbH (gdprquestions@borealisgroup.com). Detailed information on the processing of personal data can be found in our Privacy Notice. This information will also be provided to you in the newsletter subscription confirmation email.
We would love to send you details or our best offers, and latest products and services by email. We will treat your personal data carefully. We will never sell your data to third parties. By selecting the boxes below, you confirm your acceptance to receive marketing communications from Borealis L.A.T GmbH.
You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at gdprquestions@borealisgroup.com.
Thank you!
We received your registration request and will send you an e-mail in order to confirm your e-mail address shortly.
Please, finish the registration by clicking on the link in this e-mail.
BROADCASTING - APPLICATION OF SOLID GRANULAR FERTILIZER
A good fertilizer spreader distributes the fertilizer accurately, evenly and in a uniformed manner across the field. They use centrifugal, pendulum or pneumatic spreading:
Centrifugal or pendulum spreading:
The fertiliser is broadcasted by a rotating disc or an oscillating tube.
Pneumatic spreading:
The spreading device is a rail that is fed mechanically, and the granules are propelled pneumatically.
Centrifugal spreading is very common. The fertilizer granules drop out of a hopper onto a rotating disc, which has blades that throw the granules. The granules are then ejected at high speed and distributed at each side of the tramline. The following factors are important for even spreading:
Correct fertilizer spreader adjustment
Appropriate soil and weather conditions during spreading (low wind, dry and rut-free soil)
Selecting fertilizers with appropriate physical characteristics
When broadcasting with a centrifugal distributer, it is very important to consider the overlap distance between passes of the tractor on the field in order to ensure an even distribution of fertilizer across the field. This is because the concentration of granules decreases as distance from the broadcaster increases. The speed of driving also influences the distribution (see diagrams).
SPREADER ADJUSTMENT
Fertilizer spreading machines must be adjusted for a given fertilizer with a predetermined working width. Spreader adjustments are provided by the manufacturers and include the following variables:
Output = dose in kg/ha x working width x movement speed
Working width = distance between two adjacent passes of the spreader. It is also the distance between the overlap points between passes.
Over the last 25 years the broadcasting distance that spreaders can achieve has increased from 24 to 36 meters or even greater. The farmer must make sure that the fertilizer spreading machine is suited to the required width, and select fertilizer that is also appropriate.
