Background to research

The objective of my research is to evaluate forages and cattle mineral status on organic dairy farms in the southeast of America. Five research farms have been allocated, one in Tennessee and the remaining four in Kentucky.
Each pasture will be composed of
1- Cool season (CS) forages only (alfalfa, tall fescue, red clover)
2- Warm season (WS) species of crab grass & annual lespedeza mixed with cool season annual ryegrass and red clover (WRC)
3-WS species sorghum-X-sudan grass hybrid (sudex) and cowpea mixed with CS od annual ryegrass and crimsom clover (WCC)
4-WS species sudex and cowpea mixed with CS species oats and annual ryegrass and brassicas turnip and rape (WTR)