Oakes
SOYBEAN INOCULATION TRIAL,
COMMERCIAL PRODUCT
EVALUATION
D.
Lee, W. Albus, L. Besemann and H. Eslinger
|
Soil: |
Maddock sandy loam; Soil test indicated: pH=7.3; 1.8% organic matter; soil-P (18 ppm) was very high, soil-K (120
ppm) was medium and soil-S (24 ppm) was medium with 36 lbs/acre of viable N in top
2 feet of soil profile. |
|
Previous crop: |
2006 ‑ field corn; 2005 ‑
onion; 2004 ‑ potato. |
|
Seedbed Preparation: |
Flailed, disked and coulter chiseled in the fall; Coulter
chisel lightly once on April 26 Multiweed (field cultivate) three times; twice
on May 8 to smooth the seedbed and to incorporate herbicide and once on May
24 to breakup crust and take out small weeds. |
|
Planting: |
Planted Rough Rider RG601RR soybean on June 5 in 30-inch
rows. All seeds were pre-treated with ApronMAXX RTA prior to inoculation. |
|
Plots: |
Plots were 17 ft long by 5 ft
(2 rows) wide. There were 6 reps. |
|
Fertilizer: |
November 2006, broadcast 9 lbs N/acre, 43 lbs P2O5/acre,
101 lbs K2O/acre and 13.5 lbs S/acre as 11-52-00, 00-00-60
and 90% elemental sulfur. |
|
Irrigation: |
Overhead sprinkler
irrigation as needed. |
|
Pest control: |
Trust (1½ pt/acre) on May 8, Cornerstone (32 oz/acre) + AMS (1
lb/10 gal) on June 19, Buccaneer Plus (48 oz/acre) + AMS (1 lb/10 gal) + NIS;
(0.5% v/v) on July 9 for weed control.
Topsin (1 lb/acre) on July 11 and July 18 for disease
control. Lorsban (1 pt/acre) on
August 3 for insect control. |
|
Harvest: |
Harvested on October 23 with a
Hege plot combine. |
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Table 1. Results of the Soybean Inoculation Trial - Commercial Product Evaluation at the Oakes Irrigation Research Site in 2007.
Product/Treatment |
Brand-Company |
Product |
Stand |
Bloom |
PM |
Ldg |
Plant biomass |
Root biomass |
|
|
|
|
plant/ac |
---- Days to ---- |
0-9 |
g/plant |
g/plant |
|
|
|
||||||||
|
Non-Inoculated
Control |
NA |
NA |
204025 |
33.0 |
108.7 |
3.2 |
3.22 |
0.78 |
|
Cell
Tech |
EMD
Crop Bioscience |
Liquid |
202919 |
33.2 |
108.7 |
3.2 |
3.37 |
0.60 |
|
Optimize |
EMD
Crop Bioscience |
Liquid |
212213 |
33.8 |
108.5 |
3.5 |
2.95 |
0.55 |
|
Myconate |
Plant
Health Care Inc. |
Liquid |
216417 |
33.2 |
108.7 |
4.3 |
2.97 |
0.67 |
|
Nod+ |
Becker
underwood |
Liquid |
201591 |
33.3 |
108.7 |
3.7 |
3.02 |
0.68 |
|
Nod+
plus Extender |
Becker
underwood |
Liquid |
219515 |
32.8 |
108.8 |
4.2 |
3.15 |
0.70 |
|
Vault |
Becker
underwood |
Liquid |
214868 |
32.8 |
108.7 |
4.3 |
3.43 |
0.75 |
|
Protec
+ Nitrogen S |
Pro
Coat Technologies |
Peat |
215089 |
32.3 |
108.7 |
4.5 |
2.58 |
0.83 |
|
|
||||||||
|
|
|
Mean |
210830 |
33.1 |
108.7 |
3.9 |
3.09 |
0.70 |
|
|
|
C.V.% |
7.2 |
3.1 |
0.5 |
35.0 |
26.17 |
22.45 |
|
|
|
LSD.05 |
NS |
NS |
NS |
NS |
NS |
NS |
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Table 2. Results of the Soybean Inoculation Trial - Commercial Product Evaluation at the Oakes Irrigation Research Site in 2007.
Product/Treatment |
Brand-Company |
Product |
Nodule number |
Nodule mass |
Protein |
Oil |
Seeds/lb |
TW |
Yield |
|
|
|
|
No/plant |
g/plant |
% |
% |
|
lb/bu |
bu/ac |
|
|
|||||||||
|
Non-Inoculated
Control |
NA |
NA |
21.3 |
0.197 |
35.1 |
17.3 |
2704 |
57.0 |
55.9 |
|
Cell
Tech |
EMD
Crop Bioscience |
Liquid |
15.3 |
0.147 |
35.2 |
17.1 |
2732 |
57.0 |
56.7 |
|
Optimize |
EMD
Crop Bioscience |
Liquid |
23.2 |
0.191 |
34.9 |
17.2 |
2718 |
57.2 |
54.9 |
|
Myconate |
Plant
Health Care Inc. |
Liquid |
18.7 |
0.157 |
34.7 |
17.3 |
2723 |
56.8 |
56.7 |
|
Nod+ |
Becker
underwood |
Liquid |
18.2 |
0.177 |
34.8 |
17.2 |
2707 |
57.2 |
55.4 |
|
Nod+
plus Extender |
Becker
underwood |
Liquid |
19.0 |
0.169 |
34.8 |
17.2 |
2795 |
57.1 |
55.6 |
|
Vault |
Becker
underwood |
Liquid |
25.9 |
0.220 |
34.9 |
17.3 |
2708 |
56.8 |
54.9 |
|
Protec
+ Nitrogen S |
Pro
Coat Technologies |
Peat |
21.3 |
0.227 |
35.0 |
17.2 |
2781 |
56.9 |
58.1 |
|
|
|||||||||
|
|
|
Mean |
20.4 |
0.186 |
34.9 |
17.2 |
2733 |
57.0 |
56.0 |
|
|
|
C.V.% |
35.1 |
35.0 |
1.0 |
0.9 |
1.5 |
0.7 |
6.8 |
|
|
|
LSD.05 |
NS |
NS |
NS |
NS |
47.2 |
NS |
NS |
** Site
has the many years of soybean history.
** Plant
samples for biomass and nodule measurements were collected at early bloom.
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