As to Dario's (Poink88) question about others carrying on his work, he does have students of his methods. He does occasionally publish in peer reviewed academic journals. He has a 'following' that includes serious researchers, he keeps a very busy lecture schedule. When he does retire, or expire, there are others that may be able to continue where he left off.
He has made enemies of a number of the large Agro-Business corporations, Montsanto in particular. (he patents some of his results, and refuses to sell to Monsanto) So he does have trouble getting funding, but he has carved out a niche and continues to work. Many Universitie's Agronomy programs are funded by Monsanto, and proposals that mention Staments often do not get funded.
I am glad to hear others are familiar with him, and would like to see more people get to know about some of his work. It has huge implications for improving horticulture.