If you want to get really serious in growing lemon trees then you must check out these products. First let's start with some very useful books:
Grow Citrus: Probably the best option if you want to be all around informed about growing lemons and citrus in general. For only 30 $ you will get five books: a)Grow citrus b)common citrus problems c)Common citrus questions and answers d)Organic Gardening for Beginners Guide and e) How to Grow Great Roses. A very good investement ! Get it here
Citrus: Complete Guide to Selecting & Growing More Than 100 Varieties for California, Arizona Texas, the Gulf Coast and Florida: For anyone who wants to grow citrus or wants to begin, this book offers a complete and up-to-date guide.Provides information about more than one hundred varieties of oranges, mandarins, lemons, limes, grapefruit, and kumquats, as well as exotic citrus. Get it here
Lemon seed, plants and fertilizers
Here are some cheap lemon/citrus seeds, plants and fertilizers:
