Does anyone have any activities dealing with fertilizers (ID, applications/uses, instruction) for crop production?
Check out For Teachers | Nutrients For Life lesson plans (downloadable). I used the MS lessons this year in exploratory and they're pretty good. Activity-rich, with lots of information and inquiry.
I used to get this student workbook and it has a unit on fertilizer ratios and mixing.
ERIC - Math for Horticulture. Student Manual., 1994
Retrieving data ...