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Variable Rate Technology


Variable rate fertilizer application allows crop producers to apply different rates of fertilizer at each location across fields. The technology needed to accomplish variable rate fertilization includes an in-cab computer and software with a field zone application map, fertilizer equipment capable of changing rates during operation and the Global Positioning System (GPS).

Click on the link below to download a PowerPoint presentation describing the initial steps involved to begin variable rate fertilization of field crops. View the "Notes Page" of each slide to read explanations.

Getting Started in Variable Rate Fertilization

Click on the link below to read about the NDSU Variable Rate Fertilzation Program.

NDSU Variable Rate Study


Management Zones and Application Maps GPS Antenna and Receiver

GPS Antenna and Receiver


Anhydrous Ammonia

Granular Fertilzer

Air Seeders and Variable Rate