In the second video, their ultimate reason for inducing early blooming, is to take advantage of a longer harvest season, in other words, take advantage of harvesting fruit out of season. Their talk about nitrogen, potassium, and boron, is basically to also help induce early blooming, and nourish the trees, since they are introducing a stress to the tree. Ideally, I guess what they are doing is splitting up their trees' harvests, which is interesting, but also stressful to the trees.