"Jerry" oats drilled on 7.5" rows, "Graza" forage radish planted on 30" rows
Close up of oats drilled on 7.5" and "Graza" forage radish on 30" rows
Oats and radish in late September '08
Late September 2008
Late October 2008, radishes struggling to keep up with the oats
Late October 2008, oats have almost overtopped the radishes
Oat plant in late October '08, some over 3' tall
Radish plants in late October '08
Cereal rye in late October '08
View of tillage system experiment in late October '08
Another view of tillage system experiment in late October '08,
the conventional tillage system is central in the photo flanked by the minimum tillage system on the right and the no-tillage system on the left
Minimum tillage system in the center flanked by conventional tillage system plots on either side
Early Nov '08 after a frost
View from opposite end of plots
Nov '08 after a frost
Nov '08, Andy checks on the radishes
Nov '08 radishes and oats have been damaged by a hard frost
late Nov '08 after corn and soybeans have been harvested
Cereal rye with a few oat plants
Oats and radishes after ~ 15 F
Cereal rye, unfazed by a hard frost
Feb '09, oats and radishes are very dead
Flooding to the south of the experiment and across the middle of the experiment
Better view of the flooding
Another view of the flooding
March '09 - rye is starting to grow
Growing rye in March '09
Dead radish and oat residues in March '09
Rye about 18" tall in April '08
Closer view of Andy measuring the rye
Another view in April '09
Dead oats and radish residues in April '08
Rye continues to grow
Late April '08, rye has headed out
Oat/radish strip is central in photo, radish rows are nearly bare
Close up of nearly bare radish rows
Oat/radish residues, radish rows clearly visible, relatively few weeds
Oat/radish residues in the center, relatively few weeds
Oat/radish residues in center - fewer weeds than in pure oat residues (right and left)
Pure oat residues in center - more weeds than in oat/radish residues (left and right)
Early May - pure oat residues (conventional till system) have just been incorporated
Another view after pure oat residues have been incorporated using a 10' Howard rotavator (2-3" tillage depth)
Another view after first tillage in '09
One more view after first tillage in '09
Shallow tillage of weedy minimum till strips a few hours before planting. Cereal rye was rolled with a culti-mulcher over a week ago and is mostly flat but some on the edges of the strips is still standing.
Shallow tillage of a weedy minimum-till strip - these strips were relatively weed free 1 month ago
10' rotavator in action - set to till ~ 2" deep.
View from behind
Less weedy oat/radish strip - about to be tilled a few hours before planting
Tilling the strip shown in the previous photo. All tillage adjacent to the rye was done in the same direction the rye was rolled.
Almost done with pre-plant tillage.
Minimum till strip in center. Conventional till strips on either side flanked by rolled cereal rye.
One conventional till strip left to till.
Finishing pre-plant tillage
Getting ready to drill soybeans into the strips of rolled cereal rye. Used a 15' drill but blocked off outer 4 fluted meters on both sides. Set depth wheels to maximum depth and cranked up down pressure to edge of the red zone.
View while drilling.
Another view while drilling.
View after first strip has been drilled.
~ 250,000 seeds planted per acre through very thick rye.
No more field operations until harvest.
Which system do you think will yield the best?
July 10th - cultivated for the first time last week
Typical view of no-till bean strip
July 30 - beans have really grown in 3 weeks
July 30th - conventional till strip in the middle
Similar view to photo 66, 20 days later
NT strip on 8/30
CT strip on 8/30
Wide-row beans (CT and MT) are starting to turn yellow but NT beans are still green on 9/23
CT beans in between 2 NT strips