The image above shows a field with 3 different seeding dates. You can clearly see 3 clear zones with low to high biomass. With Atfarm you can easily follow how these differences get bigger or less over time.
Satellite images will not be able to tell you what the problem is but help you decide to have a closer look and then decide on the right actions.
Draw your fields and access satellite images analysed with Yara N-Sensor technology.
Monitor the biomass of your fields with Atfarm and use the Yara N-Sensor index to make more informed decisions.
“Atfarm is very simple to use, taking just 10 mins to load all my field boundaries over the 2200 hectares of farming. I like to use satellite imagery to scout for any management issues. The maps are a very visual way of picking out differences in growth and development to help prioritise decisions. There are plenty of products being developed for farmers, but some do not deliver and I wouldn’t recommend, however I would recommend farmers to try Atfarm.”
"I decided to put my faith in N-Tester and only overruled it on a very few occasions, and I have to say it has done everything it promised it would. It hasn’t stolen any yield, and when I had the grain tested, I was pleased with the results. It got it bang on!"
"Better yielding, more even crops, more efficient use of nitrogen, especially when using a lot of manures, less lodging – not to mention removing the human emotion element of choosing a rate to apply."
"Nitrogen Use Efficiency is one of the most significant challenges mankind faces if we are to reduce carbon and nutrient emissions, yet feed a growing global population. The Yara N-Tester is a valuable and practical tool for farmers to use, backed by decades of research results, to improve efficiency.”
Create a free Atfarm account and then get started with the N-Tester, variable-rate fertilisation and remote crop monitoring.
Create a new free Atfarm account now Upgrade your existing Atfarm account
Atfarm allows farmers to create variable rate application maps for fertiliser application.
Atfarm uses automatically updated satellite information based on the N-Sensor algorithm, all in an easy-to-use platform. It is also possible to also adapt the application map according to individual needs and knowledge of a field.
For the analysis of satellite images, Atfarm combines an intuitive and easy-to-use platform with the N-Sensor algorithm, a technology developed by Yara using decades of field trials.
Using Atfarm is simple – you only need to sign up online and add your farm and create fields then you're ready to get started.
You can create an application map in a few steps:
Atfarm can be used even if you don't have a variable rate spreader by using the Atfarm mobile app which is available for both iPhone and Android phones.
This allows any farmer to variably apply nitrogen, even if they do not have a variable rate controller on their fertiliser spreader. This is possible by using the GPS location from the phone and manually adjusting the flow rate or forward speed (if this is possible without changing pto speed) based on the recommendation given by the app.
There will be some limitations depending on tractor and spreader capabilities but this should allow many more farmers to take advantage of variable rate spreading.
Try the N-Tester BT now by creating a free Atfarm account and selecting the N-Tester option
Create a new free Atfarm account now Upgrade your existing Atfarm account
Atfarm is a free online service to help farmers manage crop nitrogen and monitor crop biomass using Yara digital tools together with satellite imagery.
Atfarm helps you to plan your field trips more efficiently by checking the fields from your computer before you go there:
Atfarm photo analysis is a tool available within the Atfarm app which estimates the amount of nitrogen taken up by a crop based on photographs taken using the phone camera.
Atfarm photo analysis is only available for oilseed rape, winter wheat and winter barley. In oilseed rape it will give a full nitrogen recommendation but in cereals it will only give an estimate of nitrogen uptake.
Like in Google Maps, this detailed map is made from images taken from an airplane. This is expensive and usually paid by local governments. Therefore these maps can be 1 to 10 years old.
Atfarm and the N-Sensor complement each other. With the N-Sensor, the accuracy of the biomass measurement is better thanks to the sensors in the field and with Atfarm, you quickly have biomass maps updated several times a week.
In order to create an application map, first, choose the crop type that is planted on your field. Input all information and click on create application map. The application map is being created automatically for you based on Yara's N-Sensor algorithm.
A satellite can not see through clouds. Atfarm automatically filters out these images. Sometimes a small cloud is visible. This image can not be used. Luckily images are taken every 2-4 days, so the cloud problem is smaller than with earlier satellites.
In very rare situations, there can be images with a few clouds. In that case, please send an email to hello@at.farm .
The app offers most of the functions of the website version. So feel free to try it. It allows you to use Atfarm on your smartphone when you are outside. The app also enables VRA through manual actions as variable driving speed, so you can test VRA also with older equipment.
VRA or variable rate application is central to Atfarm and is the most efficient (and economic) way to apply nitrogen. Variable rate application is most easy to execute with a modern spreader fitted with GPS. Atfarm can create the application maps to export into most tractor and spreader rate controlers to do it.
Biomass is the amount of green crop growing in your field. This is calculated from different information (wave lengths) from the satellite images.
Atfarm is now completely free to use for both variable rate applications and crop biomass monitoring.
As part of our continuous efforts to help the farming industry increase yield, reduce emissions and get the most out of applied nitrogen, we have decided to offer our digital platform, Atfarm, for free. This move will help support you in optimising nitrogen use efficiency and ultimately, productivity on farms.
As a bonus, If you sign up to the complete package, you will also receive the N-Tester BT device for FREE. There are only a limited number of N-Tester BT devices available so if you are interested, make sure you sign up quickly.
For more information visit Atfarm website
Yes, as part of our continuous efforts to help the farming industry increase yield, reduce emissions and get the most out of applied nitrogen, we have decided to offer our digital platform, Atfarm, for FREE. This move will help support you in optimising nitrogen use efficiency and ultimately, productivity on farms.
For more information visit Atfarm website
If you need to get in touch with the Atfarm team directly:
Phone: +44 1484 509725 (office hours only or voicemail)
Email: hello@at.farm
