It sounds like you've got a few survival manuals and any more would probably be repetition. For the gardening style stuff it may be worth looking at self-sufficiency books, they tend to cover a range of topics from gardening and animal husbandry to alternative energy production. They're only basic guides though and you'll probably end up getting dedicated books for whatever subject you're mostly into.

Have you tried bushcraft books? They're similar to survival but with more emphasis on skills. Ray Meares is popular over here in the UK with good reason. Mors Kochanski's Northern Bushcraft is a fantastic book.

Hope that helps!