OSR Daikon Nema Common

Transcription

OSR Daikon Nema Common
Brassica Cover Crop Variety Trial
Rose Lake Plant Materials Center
Bath, MI
August 13-Nov. 11, 2010
Disclaimers
This was a one year study.
The weather was unusually favorable.
Sample sizes were not large (the sample
quadrat was 2 ft².
Variability and LSDs tended to be high.
When data are presented, even if only some
of the selections are covered the statistics
were run on all 20 selections.
About the Site…
100 miles from Lakes Erie, Michigan, and
Huron
About 30” of precipitation spaced evenly over
the year
Moderate to well draining black sand
Rose Lake Plots
Photo by Rose Lake
NRCS PMC
Photo by Rose Lake
NRCS PMC
Brassica Selections
Radishes:
 Groundhog
 Defender
 Tillage Radish
 Daikon VNS Lot# LMR6 4
 Daikon Midwood
 Daikon Nema Common
 Driller
 Experimental Radishes:
 GS‐733, IR‐14, NZS, MBS, LITH,
COL
Forage Turnips:
 Pasja
 Appin
Mustards:
 Pacific Gold
 Ida Gold
 Accent
 Brown
Rapeseed:
 Dwarf Essex
Planting


Planting: Aug. 13, 2010
Seeding rates:




Radishes 10 lb/A
Mustards 8 lb/A
Turnip 2 lb/A
Rapeseed 5 lb/A
% Cover (Oct. 12)
100
90
% Soil Cover
80
70
60
50
40
30
20
10
0
OSR Groundhog OSR Defender
OSR Daikon
Nema Common
OSR Driller
Tillage Radish
*Using ANOVA, there were no statistically significant differences in % soil cover.
% Cover
Tillage Radish
‘Defender’
Biomass (tons/A) (Oct. 12)
1.8
1.6
Above
Ground
abcde
bcde
bcde
Dry Biomass (tons/A)
1.4
Below
Ground
cde
1.2
e
1
0.8
0.6
abcd
abcde
abcde
abcd
abcde
0.4
0.2
0
OSR Groundhog OSR Defender
OSR Daikon
Nema Common
OSR Driller
Tillage Radish
OSR Driller
OSR ‘Groundhog’
OSR Daikon Nema Common
OSR ‘Defender’
Tillage Radish
Biomass (tons/A) (Oct. 12)
2.5
abc
abc
abcd
Dry biomass (tons/A)
2
bcd
cd
1.5
1
0.5
0
OSR Groundhog
OSR Defender
OSR Daikon
Nema Common
OSR Driller
Tillage Radish
OSR ‘Defender’
Tillage Radish
Nitrogen Accumulation (lbs/A)
100
Below
Ground
Biomass
N (lbs/A)
80
Above
Ground
Biomass
60
40
20
0
OSR
Groundhog
OSR Defender
OSR Daikon
Nema
Common
OSR Driller
Tillage Radish
N (lbs/A)
140
120
Total N (lbs/A)
100
80
60
40
20
0
OSR
Groundhog
OSR Defender OSR Daikon
Nema
Common
OSR Driller
Tillage Radish
Flowering
Brassica Cover Crop
OSR Groundhog
OSR Defender
OSR Daikon Nema Common
OSR Driller
Tillage Radish
% of Plots in Flower (out of 4) on
Oct. 12, 2010
0
0
100
0
0
Flowering
Of these five radish selections, OSR Daikon
Nema Common was the earliest to flower. No
selection of the total 20 set seed.
Winter Kill
As of Nov. 10, 2010, the Brassicas had yet to die off (though some
were showing cold stress symptoms). By that date there was at least
one hard frost and several lighter frosts.
Photo by J. Durling,
Rose Lake NRCS PMC.
OSR Daikon Nema Common
Photo by J. Durling,
Rose Lake NRCS PMC
November 10, 2010
Photo by J. Durling,
Rose Lake NRCS PMC
Pollinators! In November! On a mustard.

Similar documents