Solution Center for Nutrient Management
Solution Center for Nutrient Management
Solution Center for Nutrient Management
University of California
Solution Center for Nutrient Management

Cover crop tables

Table 1. Top Regional Cover Crop Species (from Managing Cover Crops Profitably)

Bioregion

N Source

Soil
Builder

Erosion
Fighter

Subsoil
Loosener

Weed
Fighter

Pest
Fighter

Coastal  California

berseem, sub cl,
lana v, medic

ryegrs, rye, sorghyb, lana v

wht cl, cowpeas, rye, ryegrs

sorghyb, swt cl

rye, ryegrs, berseem, wht cl

sorghyb, crim cl, rye

Calif. Central Valley

winter peas, lana v, sub cl, medic

medic, sub cl

wht cl, barley, rye, ryegrs

sorghyb, swt cl

ryegrs, wht cl, rye, lana v

sorghyb, crim cl, rye

ryegrs=annual ryegrass.  buckwht=buckwheat.   forad=forage radish.   rape=rapeseed.  sorghyb=sorghum-sudangrass hybrid. berseem=berseem clover.  winter peas=Austrian winter pea.   crim cl=crimson clover.  hairy v=hairy vetch.  red cl=red clover. sub cl=subterranean clover.  swt cl=sweetclover.   wht cl=white clover.  lana v=LANA woollypod vetch.

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Table 2. 

Nitrogen Fixation estimates for leguminous cover crops commonly used in California*

Common name

Scientific name

Kg N ha-1 yr-1

Lb N ac-1 yr-1

Berseem clover

Trifolium nigrescens L.

272-400

243-357

Subterranean clover

Trifolium subterraneum L.

160-196

143-175

Lana woolypod vetch

Vicia villosa Ten.

258

230

Medic

Medicago Sp.

95-147

85-131

Australian winter pea

Pisum Arvense L.

168

150

*Adapted from Nitrogen Fixation, Texas A&M Agrilife Research and Extension Center at Stephenville22

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Table 3. 

Cover crop

Price/lb*

Seeding rate (lbs/acre)**

Bell Beans

0.49

100

Buckwheat

1.25

40-45

Clover, Berseem

1.94

30-35

Clover, Hykon Rose

2.38

30-35

Clover, Ladino

3.19

30-35

Clover, White

2.88

30-35

Oats, Montezuma

0.36

100

Pea, Cow

1.63

60-80

Pea, Winter

0.48

100

Ryegrass

0.48

40-45

Triticale

0.45

100

Vetch, Common

0.80

40-60

Vetch, Lana

0.80

40-60

Vetch, Purple

0.86

40-60

*Prices are for conventional seed and representative as of winter 2014, from TS&L

**Seeding rates are estimates of average rates commonly used

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