In the new (2012) 590 standard the NRCS adopted the 4Rs of nutrient management being, the Right source, Right rate, Right time and Right place for plant nutrient application. The timing of nutrient application is a critical component of nutrient management. The method by which nutrients are applied to a field can greatly affect the mobility of those nutrients. In general, carefully placing fertilizer and incorporating the fertilizer into the soil profile is the best management practice.
http://www.eorinc.com/documents/AG-BMPHandbookforMN_09_2012.pdf pg. 48-54
2014 Spinler Farms Fertilizer Application UAV POV
https://www.youtube.com/watch?v=Auex7zhfI6Q
Use of banded fertilizer for corn production - UMN research
Ask an expert – Bruce Tiffany
https://www.youtube.com/watch?v=9n6RGmyodRQ
Stearns County SWCD
Mississippi River Basin Initiative provided funding for project running 2010-2014
There are 35 farmers in this study
Use 4 years of basal stalk sampling and strip trails. Provided aerial imagery of farm. Took 40 samples per field (4 places, 10 times). Can correlate monitoring with aerial imagery.
Cold Spring Wellhead Protection – N Reduction (NR Strategy Case Study)
Cannon River Watershed
Farm Wise Program, Peggy Knapp, Freshwater Society