(1) Practical demonstration instruction in agriculture and home economics;
(2) Conducting 4-H boys' and girls' clubs for teaching farm and home practices;
(3) Introducing new crops and new systems of farming in various areas of the state, as development in industry necessitates changes in existing crops and systems of farming;
(4) Developing improved methods of marketing farm products; and
(5) In general, improving rural life, with the object of making farming more prosperous and farm life more desirable and attractive.