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Extension > Agriculture > Crops > Forage Production > Establishment > Forage legumes > Tables

Tables

By Craig C. Sheaffer, Nancy J Ehlke, Kenneth A. Albrecht, Paul R. Peterson

Table 1. Quantities of nitrogen fixed by various legumes.

Legume Nitrogen fixed (pounds/acre/year)
Alfalfa 70-200
Birdsfoot trefoil 44-150
Crownvetch 98
Cicer milkvetch 140
Crimson clover 57
Hairy vetch 99
Kura clover 17-158
Lentil 149-168
Red clover 60-200
Soybean 20-200
Sub clover 52-163
Sweetclover 120
White clover 115-180
Source: Heichel (1987); Date and Brockwell (1978); Seguin, et al. (2000).

Table 2. Characteristics of forage legumes.

Legume Heat/
drought
Wet Winter injury Frequent cutting/
grazing
Soil salinity Soil acidity Soil alkalinity Seedling vigor Ruminant bloat inducing
Alfalfa E P G F F P F G Yes
Alsike clover P E P P F G G G

Yes

Birdsfoot trefoil F E F G F G G P No
Cicer milkvetch G F E F F F E P No
Crownvetch G P F P F G P P No
Kura clover F G E E F F F P Yes
Red clover F F F F F G P E Yes
Sweetclover E P E P G P E G Yes
White clover P G F E F G P G Yes
E = excellent, G = good, F = fair, P = poor.

Table 3. Relative importance of insect and disease pests of forage legumes.

Insect Pests Diseases
  Potato leaf hopper Plant bugs Leaf feeders Crown and root feeders Damping off Crown and root rots Vascular wilts Foliar disease Viruses Nematodes
Alfalfa 3 2 2 2 2 3 3 2 1 2
Alsike clover 2 1 1 3 2 3 1 2 3 2
Birdsfoot trefoil 1 2 1 2 2 3 1 2 1 2
Cicer milkvetch 1 1 1 1 1 1 1 1 1 1
Crownvetch 1 1 1 1 1 2 1 2 1 1
Kura clover 3 1 1 2 2 1 1 2 2 3
Red clover 1 1 1 3 2 3 1 3 2 2
Sweetclover 1 1 2 3 2 3 1 1 2 1
White clover 2 1 1 2 2 3 1 2 3 3
1 = infrequent problem, 2 = occasional problem, 3 = frequent problem.
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