Ore on
Sta e
101)
.
University
Science Repot* t
I
RESEARCH/EXTENSION
1984 WALLOWA COUNTY NO-TILL SPRING BARLEY TRIALS
R. KSROW1, D. DI,CKENS2, T MELLIVILLE3
S. WOLFE.), J. YCISTJ, D. BALDWIN4,
K. HALE
S. WADE.),
SUMMARY
The objective of this study was to evaluate the performance of four spring
barley varieties under no-till cropping conditions in Wallowa County and
to document differences, if any, in agronomic characteristics between
barley grown using deep-banded fertilizer and that grown using a broadcast
fertilizer application.
Several significant pieces of information were gained through this study.
They are:
The benefit of banded fertilizer placement was reaffirmed.
Banded
placement (averaged across varieties) resulted in an average yield of 1.40
tons per acre whereas broadcast application average yield was only 1.22
T/A.
This difference was statistically significant. Additionally, all
varieties responded positively in yield to banded fertilizer.
1.
Differences did exist among varieties for plant height and 1000 kernel
There were no statistically significant differences among varieties for tillers per plant. Fertilizer placement did not significantly
effect any of these characteristics.
2.
weight.
1
Extension Cereal Specialist. Cgop Science Department, Oregon Statg
University, Corvallis, OR 97331; 6 Extension Agegt, Wallowa County;
Cooperating Cereal Producers in Wallowa County; 4 Wallowa County Soil
Conservation Service.
EXT/CRS 57
3/85
-2-
3.
Yield (wgt/area) is determined by the following components:
(plants/area) x (tillers/plant) x (kernels/tiller) x (wgt/kernel) = yield
As there was a significant difference between banded and broadcast fertilizer placement, one or more of these components must have been higher for
the banded fertilizer grown barleys. None of the three components measured (plants per area, tillers per plant, and kernel weight) was statistically significantly higher for banded placement; however, if one examines the data, tillers per plant was higher by nearly one tiller per plant
Therefore, it is likely that part of the
for all varieties except Gustoe.
yield response of banded fertilizer placement is due to increased tillerThere may also be a difference due to more kernels per tiller,
ing.
unfortunately, this trait was not measured.
Trends in the non-replicated Yost trial indicate a definite yield
response to additional nitrogen.
4.
PROCEDURES
Two shorter spring barley varieties (Advance and Gustoe) were compared to
two taller varieties (Morex and Vanguard). Superimposed on comparisons
among varieties was a comparison among banded and broadcast fertilizer
applications.
The experiment was conducted as a randomized
complete block split-plot design with replications over sites
rather than at a single site.
Varieties were grown in large
plots with banded fertilizer applied to one half and broadcast
A standard
fertilizer on the other half of each variety plot.
split-plot analysis procedure was used.
1.
Design.
2.
Materials and Methods. Each plot consisted of a 2-drill width x
Plots were planted using the Pioneer Yielder
300+ foot strip.
One-half of each variety plot had 400 lbs. of 27-12-0
drill.
fertilizer deep banded at seeding while a similar amount of
Plots were
fertilizer was broadcast on the other half plot.
treated uniformly in subsequent field operations. Plant counts
and disease readings were taken during the growing season. At
maturity, two 16 foot sections of each plot were hand harvested,
threshed, and cleaned. This harvested material was used to
obtain yield and seed characteristic information.
-3-
RESULTS
Yield information and analysis are shown in Table 1.
Differences among
varieties were significant only at the 10% probability level. Fertilizer
placement showed a significant difference, the banded placement giving a
yield advantage of approximately 360 lbs.(Table 2). There were no variety
x placement interactions for yield.
Height information and analysis are shown in Table 3. As expected, varieties differed significantly in height, with Gustoe shorter than the other
three varities.
Fertilizer placement had no effect on height nor was
there a variety x placement interaction for height (Table 2).
Information on kernel weight is given in Table 4. An attempt was made to
obtain bushel weight data; however, harvested samples proved to be too
small to allow efficient use of available bushel weighting equipment.
There were highly significant differences among varieties for thousand
kernel weight.
There was no fertilizer placement or placement x variety
interaction.
Information on tillers per plant is shown in Table 5.
Varieties, placement, and varieties x placement sources of variation were all non significant.
A banded versus broadcast comparison for plants per foot of row
is also shown in Table 2. Differences between broadcast and banded treatments were non significant in each case.
A summary of the information gathered from the James Yost Trial is presented in Table 6.
Statistical anaylsis was not possible as the trial was
not replicated.
TABLE 1. 1984 WALLOWA COUNTY
Treatment
SPRING BARLEY TRIALS
YIELDS (T/A)
MELV
WADE
WOLFE
AVE
VAR AVE
1. ADVANCE
BRD
2.22
1.03
0.82
1.36
2. ADVANCE
BND
2.37
1.14
1.06
1.52
3. GUSTOE
BRD
1.13
0.72
0.69
0.85
4. GUSTOE
BND
1.20
0.93
0.62
0.92
5. MOREX
BRD
1.61
1.36
1.02
1.33
6. MOREX
BND
1.87
1.82
1.17
1.62
7. VANGUARD BRD
1.77
1.07
1.19
1.34
8. VANGUARD BND
1.95
1.36
1.33
1.54
1.44
1.77
1.18
0.99
1.31
1.31
AVE
PLSD (10%)
1.44
0.88
1.48
0.42
TABLE 2.
AGRONOMIC COMPARISONS FOR BROADCAST OR BANDED FERTILIZER
APPLICATION.
YIELD
T/A
Broadcast
Banded
PLSD (1%)
HGT
(INCHES)
1000 K WGT
(GRAMS)
1.22
1.40
32.0
32.5
0.14
NS
37.1
37.1
NS
TABLE 3. 1984 WALLOWA COUNTY
Treatment
SPRING BARLEY TRIALS
TILLERS/
PLANT
PLTS/FT
ROW
4.8
5.5
7.5
7.0
NS
NS
HEIGHT (INCHES)
MELV
WADE
WOLFE
AVE
VAR AVE
1. ADVANCE
BRD
39
34
29
34.0
2. ADVANCE
BND
42
32
28
34.0
3. GUSTOE
BRD
24
24
18
22.0
4. GUSTOE
BND
25
21
19
21.7
5. MOREX
BRD
48
33
33
38.0
6. MOREX
BND
46
40
32
39.3
7. VANGUARD BRD
42
33
27
34.0
8. VANGUARD BND
44
33
28
35.0
34.5
38.8
31.3
26.8
32.3
32.3
AVE
PLSD (1%)
34.0
21.8
38.7
7.2
TABLE 4. 1984 WALLOWA CNTY SPRG BARLEY TRIALS
Treatment
1000 KERNEL WGTS (GRAMS)
MELV
WADE
WOLFE
AVE
VAR AVE
1. ADVANCE
BRD
38.70
35.82
42.48
39.00
2. ADVANCE
BND
39.84
39.68
38.12
39.21
3. GUSTOE
BRD
32.12
28.62
36.24
32.33
4. GUSTOE
BND
30.80
29.60
32.72
31.04
5. MOREX
BRD
36.34
35.18
36.00
35.84
6. MOREX
BND
35.82
42.20
37.98
38.67
7. VANGUARD BRD
39.50
39.72
44.10
41.11
8. VANGUARD BND
39.64
42.10
37.06
39.60
40.35
36.60
36.62
38.09
37.10
37.10
AVE
PLSD (1%)
39.11
31.68
37.25
5.00
TABLE 5. 1984 WALLOWA COUNTY
Treatment
SPRING BARLEY TRIALS
TILLERS PER PLANT
MELV
WADE
WOLFE
AVE
VAR AVE
1. ADVANCE
BRD
6.3
6.2
3.0
5.2
2. ADVANCE
BND
9.3
5.7
3.3
6.1
3. GUSTOE
BRD
5.2
5.3
4.3
4.9
4. GUSTOE
BND
5.2
4.0
4.3
4.5
5. MOREX
BRD
5.0
4.8
3.0
4.3
6. MOREX
BND
7.0
4.5
4.0
5.2
7. VANGUARD BRD
6.0
5.0
3.5
4,8
8. VANGUARD BND
10.3
4.9
3.8
6.3
5.6
6.8
5.1
3.7
5.2
5.2
AVE
PLSD (10%)
5.6
4.7
4.7
NS
TABLE 6. 1984 WALLOWA COUNTY SPRING BARLEY TRIALS
Yield (T/A)
Treatment
Hgt (in) 1000 K Wgt
YOST DATA
Tillers/Plt
1. ADVANCE
100
0.99
28
39.82
3.2
2. ADVANCE
200
1.22
23
39.24
3.4
3. CLARK
100
0.81
30
27.72
3.4
4. CLARK
200
0.80
34
32.96
4.0
5. GUSTOE
100
0.60
18
41.60
2.1
6. GUSTOE
200
1.40
24
42.48
3.8
7. VANGUARD 100
1.18
27
40.40
3.7
8. VANGUARD 200
1.39
26
41.28
5.8
1.05
26
38.19
3.7
AVE