Wow. I'm impressed and interested. Microsoft Access? I build large spreadsheets for some of my other projects, and dabble with pivot tables. But I always get frustrated when I pick up a book on Access and try to create the kind of database that will allow flexible reporting. Currently my spreadsheet also tracks the variables shown in yours plus price per seed, yield per plant, dates (purchased, dropped, died or harvested), days from drop to harvest, success/failure of the germination methods used, medium used, nutes used, and various totals and averages.
But I'd love to have a powerful relational database for this "hobby". Still being something of a noob, I still don't really know all the variables that are important and worth having versus those that are just noise and a waste of time.
I wonder how many other growers here on AFN (or other forums) also have created customized digital tracking systems --- probably quite a few. Maybe there is a small ($$) business here for the enterprising dude who wants to offer a quasi-commercial app.