rob stout - nitrogen: important nutrient or water quality challenge
TRANSCRIPT
IMPORTANT NUTRIENT -OR-NITROGEN:
WATER QUALITY CHALLENGE?
Rob StoutWashington Co. Farmer
IOWA NUTRIENT REDUCTION STRATEGY:A prac t i ca l , thorough , s c ience - and techno logy-based f ramework
for reduc ing nut r ien t expor t f rom our s ta te
*Load reduction not concentration reduction**Concentration reduction of that water interacts with active zone below the buffer
NITRATE-NITROGEN REDUCTION:IN-FIELD PRACTICES
NITRATE-NITROGEN REDUCTION:LAND USE & EDGE-OF-FIELD PRACTICES
NITROGEN REDUCTION PRACTICES:PERENNIAL VEGETATION
NITROGEN:
CONSERVATION RESERVE PROGRAM
NITROGEN REDUCTION PRACTICES:COVER CROPS
RYE BEING SPRAYED
TERMINATED RYE
PLANTER
PLANTER CLOSING
SOYBEANS IN RYE RESIDUE
CORN WITH RADISH
NITROGEN REDUCTION PRACTICES:BIOREACTORS
WOODCHIP BIOREACTOR:
https://www.youtube.com/watch?v=yBXriuuVLoE
WASHINGTON, IOWA
NITROGEN REDUCTION PRACTICES:BIOREACTORS
From Christianson and Helmers, 2011 Illustration by John Petersen (www.petersenart.com)
POLLINATOR SEEDING
STOUT BIOREACTOR:INITIAL RESULTS
0%
20%
40%
60%
80%
100%
Nitrate Reduction (%)
STOUT BIOREACTOR:INITIAL RESULTS
