Cover Crop Trends in the U.S.css.wsu.edu/oilseeds/files/2015/02/MyersCoverCrops2015OSDS.pdf ·...
Transcript of Cover Crop Trends in the U.S.css.wsu.edu/oilseeds/files/2015/02/MyersCoverCrops2015OSDS.pdf ·...
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ROB MYERS, PH.D.
UNIVERSITY OF MISSOURI AND NORTH CENTRAL SARE
Cover Crop Trends in the U.S.
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Why is cover crop adoption increasing so rapidly?
What’s happening with cover crops for yield and other adoption considerations
New equipment for cover crops
Funding assistance to experiment with cover crops
Policy changes – recommendations from National Working Group on Cover Crops and Soil Health
Presentation Outline
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Sunlight being harvested
October 30, 2013, Steve Groff farm, southeastern PA
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When there is no cover
November 22, 2012, Decatur, IL
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Cover Crops (examples)• Fall planted
• Cereal (winter) rye• Oats• Tillage radishes• Annual ryegrass• Hairy vetch
• Spring planted• Spring triticale• Oats• Austrian peas• Dwarf rapeseed• Clovers
• Summer planted• Sorghum sudan grass• Foxtail millet• Buckwheat
Crimson clover in a Missouri field.
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Cover crops can be a key part of today’s conservation efforts
Strip trials of cover crops, late October, farm of Steve Groff, Lancaster, PA
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SARE/CTIC Cover Crop Survey
• For the 2012-13 survey, 759 producers who use cover crops completed the survey, and those farmers surveyed planted over 218,000 acres of cover crops in 2012
• Survey was done both online and through paper copies at Midwest farmer meetings
• For the 2013-14 survey, 1924 farmers completed the survey, split between 75% who had used cover crops and 25% who had not
• This past year it was an online survey with wide national distribution
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Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Cover crop cost share
14%
8%
15%63%
How Financial Assistance is Used
Yes - I initially received cost-sharebut now I largely self-fund
Yes, I have only planted cover cropsusing financial assistance
Yes, I have periodically received andused financial assistance
No - I have not received financialassistance to plant cover crops
Preliminary data from 2013-14 SARE/CTIC cover crop survey
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1.5%
1.6%
1.8%
3.2%
4.0%
4.1%
4.6%
9.5%
10.0%
12.0%
15.8%
17.0%
22.8%
28.1%
36.2%
51.2%
73.9%
0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0%
Controls insects
Reduces diseases
Winter hardiness / survival
Other
Winter kills easily
Attracts pollinators to my farm
Decreases cost of producing the following cash crop
Deep tap roots
Fibrous rooting system
Economic return
Increases yields in following cash crop
Provides nitrogen scavenging
Provides a nitrogen source
Controls weeds
Reduces soil compaction
Reduces soil erosion
Increases soil organic matter
Percentage of Respondents
Desired Cover Crop Benefits
Preliminary data from 2013-14 SARE/CTIC cover crop survey
Why are farmers planting cover crops?
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Cover Crops Role of Ag Retailers
0% 10% 20% 30% 40% 50% 60% 70%
Encouraging farmers to plant cover crops
Advising farmers on what cover crop seedto purchase
Providing cover crop seeding services
Providing cover crop termination adviceand services
Helping to adjust nutrient managementplans to account for cover crop nutreint…
Helping assess and understand soilchanges resulting from cover crop use
Non-Users Users
Preliminary data from 2013-14 SARE/CTIC cover crop survey
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First Year Farmers Planted a Cover Crop
0
20
40
60
80
100
120
140
1948
1960
1961
1963
1964
1966
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
Num
ber o
f Res
pond
ents
Year
Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Preliminary data from 2013-14 SARE/CTIC cover crop survey
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2012 USDA Census of Agriculture
State Acres of cover crops
Washington 178,401
Idaho 103,467
Oregon 92,796
Montana 128,183
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Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Biggest Cover Crop Challenges
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COVER CROP IMPACT ON CORN AND SOYBEAN YIELDSIN THE DROUGHT YEAR OF
2012
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Impact of Cover Crops on Corn and Soybean 2012 Yields*
126.2115.1
0
20
40
60
80
100
120
140
All respondents
Bus
hels
per
acr
e
corn with covers corn without covers
47.1
42.2
0
5
10
15
20
25
30
35
40
45
50
All respondents
Bus
hels
per
Acr
e
Soybeans with coversSoybeans without covers
Based on 234Respondents
Based on 196Respondents
*Yields are for 2012 on farms where farmers had side by side fields with similar management and varieties, other than using cover crops or not
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Drought States Commodity Crop Yieldsas Impacted by Cover Crops in 2012
• Broke the data down to look at yield impact in seven of the states hit hardest by drought
(specifically NE, KS, SD, MO, IA, IL, and IN)
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How can cover crops help in a drought?
Benefits that may occur from cover crop in first year Deep rooting cover crops lead to deeper rooting cash crops Residue blanket reduces evaporation Possible changes in mycorrhizae and overall soil biology
Long term benefits Increased organic matter Better rainfall infiltration Better retention of moisture in the soil profile
Better soil health Less restrictions to root growth Use of cover crops is often accompanied by other changes, like the
move to no-till (each tillage pass causes the loss of soil moisture)
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COVER CROP IMPACT ON CORN AND SOYBEAN YIELDS
IN 2013
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Impacts of Cover Crops on Corn and Soybean Yields in 2013
164.9159.9
0.0
20.0
40.0
60.0
80.0
100.0
120.0
140.0
160.0
180.0
Corn with Covers Corn without Covers
49.447.2
0.0
10.0
20.0
30.0
40.0
50.0
60.0
Soybeans with Covers Soybeans without Covers
Based on 529Respondents
Based on 570Respondents
Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Median Cover Crop Seeding Costs
$-
$5.00
$10.00
$15.00
$20.00
$25.00
$30.00
Seed costs Establishment costs (if youdid pay somebody)
Establishment costs (whatyou are willing to pay
somebody)
Wha
t far
mer
s ar
e pa
ying
or
will
ing
to p
ay($
/acr
e)
Preliminary data from 2013-14 SARE/CTIC cover crop survey
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Preliminary data from 2013-14 SARE/CTIC cover crop survey
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What’s up with cover crop seeding method?
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High clearance cover crop broadcast seeder
Von Tillburg farm (Ohio)
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Photo credit: Gandy.net
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Photo credit Joel Gruver, Western Illinois University
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60 foot wide roller crimper for terminating cover crops (this is hairy vetch in Illinois)
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Planting beans into standing cereal rye
Photo credit – Dave Robinson
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Soybeans emerging in killed cereal rye
Photo credit – Dave Robinson
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Grazing of Cover Crops
Beef cattle grazing cover crops, farm of Steve Groff, Lancaster, PA
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Western Sustainable AgricultureResearch and Education
Western SARE Grants and Education
advancing innovations in sustainable agriculture
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Farmer/Rancher
• Led by agricultural producers with support and guidance from technical advisors
• Up to $15k for 1 farm or $25k for 3+ farms collaborating
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Professional + Producer
• Agricultural professional leads project with producers, acting as advisor and on-site trial host.
• Maximum grant $50K
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Policy Changes with Cover Crops
• Crop insurance and connection to crop yield• Data on where cover crops are being used• Incentive payments• New cover crop cultivars• More investigation into connection with soil health
National Working Group on Cover Crops and Soil Health- Pacific Northwest represented by Gary Farrell
Great opportunity for cover crops going forward –probably on track for 20 million acres of covers by 2020
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What cover crop farmers would tell their neighbor
It is a systems approach based on a return to the way nature is intended to work and therefore can be extremely successful. If you expect to be able to farm your land in 50 years, or
have your child or grandchild farm it, then you need to use cover crops. There is a wide array of cover crops that can improve every
rotation and soil with a little bit of planning. Keeping the soil covered year-round provides food for the
life in the soil, which in turn provides nutrients for your crops.We must take better care of the soil we depend on.
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Thanks! Visit www.sare.org/covercrops