Question: Business Law in New Zealand

After years of battling with gorse on his farm, Sam develops a novel concoction, which when sprayed on gorse, kills it on impact. Sam takes detailed notes while experimenting with various ingredients in his shed, detailing the precise formula and method of producing the final concoction. Sam also develops a unique mechanical gun that sprays the concoction onto gorse with laser like precision, allowing the user to kill gorse without doing damage to any surrounding vegetation. He makes several sketches of the tool.

Having been a farmer for most of his life, Sam has seen and experienced all that rural life has to offer. So he writes a book about his experiences. His writing style is pretty dull and the content of the book is very dry. Nevertheless, the book proves successful, as people in the community know him to be an extremely experienced farmer as well as a bit of backyard scientist. In fact, he is referred to by locals as "smarty pants Sammy". Sam is thinking of using this name to market his gorse killing concoction.

Required:

Identify three forms of intellectual property that Sam could claim? For each type of intellectual property that you identify:

(1) explain the exact subject matter that would be covered; and

(2) describe the relevant law and discuss whether Sam is likely to satisfy its requirements.

Please help me to explain detailed both question(please don't write just few sentence, explain question detailed will help me to understand easier) and provide reference if use. Thank you!