From Nillson - Iron is one of the most common elements in the earth's crust. Plants need iron for respiration, same as animals. Plants also need iron for photosynthesis. Iron deficiencies show as yellowing leaves. Pinoak is a plant that exhibits iron deficiency in a lot of cases because genetics of some pinoaks blocks iron uptake.
CCA, CPSS, CPSEC
Reared on a farm in Southwestern Illinois
Educated at the University of Illinois in Urbana-Champaign (1977)
25 years with USDA-SCS (NRCS since 1994)
Soil-Right Consulting Services, Inc. 2005 - 2015
RPM Soils LLC 2016 to present