T.M. Reinbott*, K.M. Clark, D.Peterson*, and R.G. Hoormann
Crimson CloverHairy Vetch
Sesbania            Sunn Hemp           Cowpea
   Each Species of    Legume has a    Different Species of    Bacteria   You must match them    together.
   Very Short Growing    season-60 days   Some Weed Control-    Allelopathy   Inexpensive Seed-much    like wheat or ry...
   Inexpensive Seed   Rye is very winter hardy   Spring Oats is not winter    hardy and will winter kill-    can be use...
   Plant in Fall   Overwinter-most of    the time   Deep Roots-5-6 ft   Scavenge Nitrogen   Dense matt controls    we...
   Late Summer Planted   Sequester Nitrogen   Loosen Soil   Weed Control?
Fall       Spring
From Steve Groff             No Cover CropCover Crop
McVay, et al. 1989,Soil Sci. Soc. Am. J
Nutrient Scavenge, Loosen Soil, Weed              Control
Ohio State      Loosen Soil-              University              Courtesy of     Increase              Steve Groff     ro...
   Treatment        Water-Aggregate Stability     Pentrometer   Bulk Density                        % Increase over cont...
From MU Bradford-2012
   K Content, ppm   Crop         0-3 inch             3-6 inch   6-12 inch   None         105 b                100 ab  ...
                Shoot     Root      Shoot N   Root N    Shoot N   Root N                Dry Wt    Dry Wt    Content   Co...
40                 35   Adapted from Bah, et al, 2007                 30                 25    Triple Super Phosphate   Le...
   Cover Crop Roots                                      Feed the Soil Microbes                                     Grea...
   Cover Crops Attract    Butterflies, Bee    (including Bumble    Bees and other Native    Bees), beneficial    beetles,...
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Cover Crops and Soil Health
Upcoming SlideShare
Loading in …5
×

Cover Crops and Soil Health

501 views

Published on

An overview how cover crops can benefit soil health

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
501
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
21
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Cover Crops and Soil Health

  1. 1. T.M. Reinbott*, K.M. Clark, D.Peterson*, and R.G. Hoormann
  2. 2. Crimson CloverHairy Vetch
  3. 3. Sesbania Sunn Hemp Cowpea
  4. 4.  Each Species of Legume has a Different Species of Bacteria You must match them together.
  5. 5.  Very Short Growing season-60 days Some Weed Control- Allelopathy Inexpensive Seed-much like wheat or rye Attract Beneficial Insects Many uses for Vegetable production Nutrient Cycling
  6. 6.  Inexpensive Seed Rye is very winter hardy Spring Oats is not winter hardy and will winter kill- can be used to our advantage Rye tremendous dry matter Suppress weeds  Allelopathy or Blocking Light Good to mix with legumes
  7. 7.  Plant in Fall Overwinter-most of the time Deep Roots-5-6 ft Scavenge Nitrogen Dense matt controls weeds Can become a weed!  Herbicide resistance problem
  8. 8.  Late Summer Planted Sequester Nitrogen Loosen Soil Weed Control?
  9. 9. Fall Spring
  10. 10. From Steve Groff No Cover CropCover Crop
  11. 11. McVay, et al. 1989,Soil Sci. Soc. Am. J
  12. 12. Nutrient Scavenge, Loosen Soil, Weed Control
  13. 13. Ohio State Loosen Soil- University Courtesy of Increase Steve Groff root growth Open and water field infiltration?TillageRadish®field Soil compaction decreased by >40%
  14. 14.  Treatment Water-Aggregate Stability Pentrometer Bulk Density % Increase over control % increase Mg/m3 Corn/Soybean 1.32 Corn/rye/soybean/rye 9 19 1.24 Corn/rye/soybean/hairy vetch 13 8 1.23 Corn/rye/soybean/Hv+rye 17 16 1.23 From Villamil, et al 2006
  15. 15. From MU Bradford-2012
  16. 16.  K Content, ppm Crop 0-3 inch 3-6 inch 6-12 inch None 105 b 100 ab 109 a Rye 97 b 89 c 96 ab Crimson Clr 96 b 72 d 71 c Hairy Vetch 127 a 108 a 86 bc From Hargrove, 1986. Agronomy Journal
  17. 17.  Shoot Root Shoot N Root N Shoot N Root N Dry Wt Dry Wt Content Content After Corn lb/acre lb/acre % % lb/acre lb/acre Radish 2165 2599 1.86 1.15 39.3 30 Rye 1757 2.39 37.9 After Soybean 3345 1989 3.93 3.12 132 62 2545 3.94 100 From Dean and Weil, 2009 Journal of Environmental Quality
  18. 18. 40 35 Adapted from Bah, et al, 2007 30 25 Triple Super Phosphate Legume+Fertilizer% P Utilizaton 20 15 10 5 0 8 1 2 Weeks After P Application 15
  19. 19.  Cover Crop Roots Feed the Soil Microbes  Greater Crop Diversity equals greater Microbe DiversityBacteria-100 million-1 Billion!Fungal Filaments-Several YardsProtoza-Several ThousandNematodes-10-20
  20. 20.  Cover Crops Attract Butterflies, Bee (including Bumble Bees and other Native Bees), beneficial beetles, lacewings, etc.

×