Crop nutrition was sold by the bag. A crop does not eat by the bag.
Before VAN existed, nutrition was sold as one bag of this, three bags of that — the same prescription for a cotton grower on light soil and a rice grower on a heavy alkaline field in the next district. VAN’s founders did not read that in a report; they watched it, season after season.
In 2007, VAN’s founder produced humic acid in Pakistan from Pakistani leonardite — the oxidised lignite humic substances are drawn from — a material until then imported and, as far as VAN knows, not made here before. What followed built the rest: more chemistries were tried, then tested on ground VAN came to own. That research farm is what the company was built on.