TSM Services Research Farm, Catlin, Illinois, USA
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  Research Farm
     Fertility Trials 2004

            By Randy Simonson, Ph. D.
Other Articles in This Issue:
TSM® Micro-Boost Trials, 2004
Corn/Soybean Variety Trials, 2004
2005: Time to Look Forward

This 2004 season was better than average.  We got into the field early, but May was wet.  We got the corn in on time, but we had a difficult time getting the last soybean field planted.

One problem that occurred in July was high winds.  Some say there were tornadoes and others say they were just straight-line winds.  Whichever it was, it caused some of the corn to go down.  Whether the corn fell down or remained standing was very hybrid specific.  Most of our corn made out ok, but as you will see later in the table with the corn hybrid trial, some hybrids really went down.

The fertility trials have been in place for 12 years on corn and soybeans.
We have a corn and soybean plot each year but we rotate the two crops every year.  The same treatments are used on the same individual plots every year.  There are six treatments, three TSM® budgets (A, E and I),
and three other fertility programs (University of Illinois, Tri-State and a conventional program with 200 lbs. of DAP/acre and 200 lbs. potash/acre applied only to the corn and no fertilizer applied to the soybeans).
Specialty Fertilizer Products supplied the TSM® Pre-Mix, which was
used for the TSM® treatments.

CORN

Two different corn hybrids were used this year.  The hybrids were Kruger® K-9313 and K-9910 YBCB.  Lumax® and Force® were provided by Syngenta® to control weeds and corn rootworms in the corn.  We used the Agrium® polymer coated, slow release urea called ESN® for nitrogen in the corn.  The ESN® was applied pre-plant and incorporated.  The TSM® Premium Germinator was applied at a rate of 5 gal./acre to the row of the corn.

The first table shows the corn yields for each hybrid used.  The Kruger® K-9910 YGCB yielded about 20 bu./acre more than the K-9313.  Besides the genetic difference in the two hybrids, the corn borer tolerance could account for much of this difference.

TSM® A, the high fertility plot, was the high treatment for K-9313,
but with K-9910 YGBC the highest treatment was TSM® E (medium fertility).  The high treatment of the mean between the two hybrids was TSM® E and the low was U of IL.  TSM® I had a respectable mean of 190 bu./acre although K-9910 YGCB yielded much better than K-9313 in this low fertility plot.  TSM® I averaged similarly to Tri-State and conventional treatments.



Treatment
TSM A
TSM E
TSM I
U of IL
Tri-State
Conventional

Mean
Kruger
K-9313
bu/acre

185
184
176
172
183
181

180

Kruger
K-9910 YGCB
bu/acre

201
204
203
197
199
195

200


Mean
bu/acre

193
194
190
185
191
188

190


This past season was good for corn but last year was better.  This year produced corn that yielded 9 bu./acre better than the average, whereas last year the yields were 36 bu./acre higher than the average.

The 12-year average shows the TSM® E treatment yielding the greatest with an average of 186 bu./acre.  TSM® A is next, then everything else is 178 or 180 bu./acre.

1993-2004 TSM® Research Farm
Catlin, Illinois


Corn Yields (bu/acre)
Treatment19931994199519961997199919992000200120022003200412-yr
Mean
TSM® A140202160152175174217191191188218193183
TSM® E135216163161185173217189188189222194186
TSM® I135202157146169163210183178182217190178
U of IL127209160151182170215178186181218185180
Tri-State---142173169214178182180215191178
Conventional125205160154180170213182187179214188180
Mean132207160151177170214184185183217190181


SOYBEANS

The soybean variety used was Kruger K-393 RR/SCN.  DowAgrosciences® provided FirstRate® and GlyphoMax® herbicides.  The FirstRate® was applied with the first application of GlyphoMax® and then a second application of GlyphoMax® was applied by itself.

The average yields this year tied with 2002 for having the highest average yield in the fertility plot.  TSM® E topped the plots this year as it does when the 12 past years of production are averaged.  Again, the TSM® I treatment is doing surprisingly well for the amount of fertilizer that is being applied.  The TSM® I treatment produces as much as the non-TSM® treatments.


1993-2004 TSM® Research Farm
Catlin, Illinois


Soybean Yields (bu/acre)
Treatment19931994199519961997199819992000200120022003200412-yr
Mean
TSM® A57584353645272606676547261
TSM® E62734457615572646575587463
TSM® I58654054605262556372557159
U of IL56653856575265606067546858
Tri-State---56545366596272577159
Conventional56594155605370606366557059
Mean58644155595368606371567160




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