What is the best way to compare the uptake of plant root nutrient uptake when using chemical fertiliser as opposed to using a blended fertiliser?

Dryland, 3 foot row spacing, plant population 16800/ha Roundup ready yellow and white maize, with chilo resistant gene summer rainfall 400-600mm N = 80kg / ha P = 20 kg/ha clean element K = 4.5kg...

14 June 2017 8,601 8 View