To this committee shall be referred, in accordance with the rules, all legislative instruments, messages, petitions, memorials, and other matters relating to the following subjects:

* Agriculture generally.
* Agricultural and industrial chemistry.
* Agricultural economics and research.
* Agricultural engineering.
* Agricultural production on public lands.
* Agricultural production, promotion, and marketing.
* Agricultural services.
* Animal industry and diseases of animals.
* Aquacultural economics and research.
* Aquacultural production, promotion, and marketing.
* Dairy industry.
* Production, promotion, harvesting, and marketing of forestry products.
* Silviculture.
* Human nutrition and home economics.
* Inspection of livestock and meat products.
* Plant industry and plant quarantine.
* Rural development.
* Soils and soil conservation.