Soybean Foliar Results and Discussion We were pleasantly surprised that just 4 days later there was a visual response in all the treatments when compared to the untreated check. While walking along the lateral on August 5 th the differences between the check and treatments were noticeable because the treated passes had larger leaves than the untreated check. The visual difference varied from one treatment to the next and was most obvious with the BW-Advance and the differences could be observed until the onset of senescence. Therefore we feel that that each of the treatments actually promoted more photosynthesis. When we harvested this trial we observed an increase of 1.6 to 4.3 bpa. This is a typical response range to foliar treatments in soybeans. Figure 11 is a table of yields and ROI for each of the seven treatments tested in 2022. Interestingly enough the largest ROI was from the least responsive treatment and all of the ROIs were over 100%. We feel that each individual will have a different target that is their goal and this data can help them be more profitable no matter if they are looking for the highest ROI a good net return or the highest yields.
2 oz/ac Radiate + 1 qt/ac Nutrisync
2 oz/ac Radiate + 1 qt/ac Terramar
1 qt/ac SeaAmino 1 qt/ac KelPack 1 qt/ac Kstar
1 qt/ac BW Advance
Check 11.67
6 oz/ac Respite
Moisture Yield 13.0 Grain Price
11
11.3 82.6
13
10
9.7
10.6 82.2
10.5 83.5
80.6
83.2
82.4
84.9
83.0
$14.48
$14.48 $83.00
$14.48
$14.48
$14.48 $38.00
$14.48 $38.00
$14.48
$14.48 $29.40
Product Cost $/gal Product Cost $/ac Difference from Check
$254.80/$26.30 $254.80/$33.50
$5.48 $1.37
$3.89
$10.56
$12.36
$9.50
$9.50
$7.35
2.6
2.0
1.8
4.3
2.4
1.6
2.9
Revenue Change
$37.67
$29.45
$26.26
$62.48
$34.48
$23.73
$42.60
Net Revenue
$33.78
$18.89
$13.90
$52.98
$24.98
$22.36
$35.25
ROI
868
179
113
558
263
1632
480
Figure 11. Yield results and ROI calculations for the 2022 Soybean foliar trials.
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