Our new seed rate calculator is available on Vaderstad.com and can be used from a computer as well as from a mobile device, like a phone or iPad, in field.
In the calculator you can either target the actual seed rate in kg/ha (seed volume), or the target seed rate of yielding plants in the field measured as plants/m2 (seed population).
Enter the data matching your seeds and conditions
After this, you enter the thousand kernel weight and germination rate for your seed, numbers that are normally depicted on the seed bag. Then you fill in an estimation of projected field losses in % because of factors such as weather, conditions in the field and pests - and finally enter the size of your field.
For maximum ease of use, if you don’t want to enter all figures manually, you can also select between nine commonly used crops where standard values for TKW and germination rate are already prefilled.
When you have entered all the data you get a calculated seed rate to reach your chosen target.
Available both in metric and imperial system
It’s also possible to switch between metric and imperial systems, depending on where in the world you are.