Managing Cover Crops Profitably - Valley Crops Home

vegetables, 15
wheat, 74
Nurse crops
annual ryegrass, 55–56
barley, 58–59
berseem clover, 88
buckwheat, 78
medics, 123, 125
mixtures, 87
oats, 62–63
rapeseed for sweetclover,
145
wheat, 74
Nutrients. See Nitrogen;
Phosphorus
O
Oats, 62–65
advantages and disadvantages,
52–53, 62–63
comparative notes, 61, 65
crop systems, 36, 37, 113,
160
cultural traits, 50
fertilizer reduction, 9
management, 63–65
mixtures, 88, 89, 92–94, 143
performance and roles,
48–49
planting, 51, 63-64
Oats, black, 159
Orchards
annual ryegrass, 55–57
cowpeas, 96
insect management, 28–29
medics, 120
mixtures for, 86
selecting cover crop, 14
subterranean clovers, 132,
133, 136, 137
woollypod vetch, 154
Organic matter
barley, 58
buckwheat, 77, 79
components, 17
medics, 120–121
microorganisms and aggregation,
17–18, 19
rye,66
sorghum-sudangrass hybrids,
84
wheat, 73
woollypod vetch, 152
Overseeding. See Underseeding
P
Pacific Northwest
sorghum-sudangrass hybrids,
83
species for, 47
subterranean clovers, 136
wheat with potatoes, 75
Pasture. See also Grazing
in corn-soybean system, 41
sorghum-sudangrass hybrids,
81
Peanuts, 26–27, 29
Pearl millet, 160
Peas. See Cowpeas; Field peas
Perennials. See also specific
crops
grasses, 54
legumes, 85
nitrogen fixation, 92
Pest management. See Disease
management and sources;
Insect management and
sources;Weed management and
sources
Phosphorus
buckwheat, 77–78, 79
conservation by cover crops,
19
crimson clover, 101
hairy vetch, 114
red clover leaching, 131
sweetclovers, 140
winter wheat, 72
Pisum sativum subsp. arvense.
See Field peas
Plant counts for nitrogen estimation,
130
Planting. See Establishment;
Seeding/seeds
Plastic mulches, 118
Potassium, 19, 66, 72
Potatoes, 10, 30, 37, 75, 83–84
Press-wheel drill, 141
Profitability. See Costs
R
Rainfall. See Drought; Soil
moisture
Rapeseed, 85, 145
Reseeding
balansa clover, 158
barley, 60
berseem clover, 88
clovers, 13
comparison of species, 45,
51
in cotton crop rotations, 40
crimson clover, 100, 103
medics, 121–122, 126
mixtures, 86
subterranean clovers,
135–136, 137–138
sweetclovers, 141
woollypod vetch, 154
Residue
berseem clover, 90, 91, 94
buckwheat, 77
in corn-soybean system, 35
in cotton production, 40
cowpeas, 98
crimson clover, 103, 104
field peas, 111
grasses, 54
performance and roles of
species, 44, 49
sorghum-sudangrass hybrids,
82, 83, 85
species comparison, 43, 48
Rhizobium bacteria, 92–93
Rice, 137
Rice straw, 59
Rollers for berseem clover, 91
Rolling stalk chopper, 32–33,
116, 129
Rotations. See Crop rotations
Runoff reduction, 101
Rye, 65–71
advantages and disadvantages,
52–53, 65–67
208 MANAGING COVER CROPS PROFITABLY