List of Illustrations

Page
[1].F. D. CoburnFrontispiece
[2].A Typical Alfalfa Plant1
[3].Typical Stems and Foliage of the Alfalfa Plant1
[4].An Eight-year-old Alfalfa Plant6
[5].Crown of Plant Shown in the Preceding Illustration6
[6].Alfalfa Blossoms Enlarged7
[7].Intergrading Types of Seed Between Alfalfa and Sweet Clover12
[8].Seeds of the Weed Known as Buck-horn13
[9].Alfalfa Seeds Magnified Five Diameters13
[10].Sweet Clover—Alfalfa—Yellow Trefoil26
[11].Three Distinctive Types of Alfalfa Seed Magnified Twelve Times27
[12].Yellow Trefoil Pods32
[13].Alfalfa Seed Pods32
[14].Sweet Clover Pods33
[15].Bur Clover Seed Pods33
[16].Yellow Trefoil: Black Medic: Hop Clover (Medicago lupulina)37
[17].Three General Types of Alfalfa Seed44
[18].Dodder Seed Magnified45
[19].Alfalfa Seed Magnified45
[20].Dodder Plant on an Alfalfa Stem46
[21].Dodder (Cuscuta arvensis)47
[22].Alfalfa and Dodder Seed (Actual Size)47
[23].Dodder (Cuscuta epithymum)47
[24].Bur Clover Pod66
[25].Yellow Trefoil Seed Pod66
[26].Alfalfa Seed Pod67
[27].Spotted Clover Pod67
[28].Gathering Alfalfa Hay into Windrows with a Side-delivery Horserake78
[29].Cutting a Fine Field of Alfalfa79
[30].Gathering an Alfalfa Crop in Page County, Iowa92
[31].Alfalfa Harvesting Scene in Yellowstone County, Montana92
[32].Mast and Boom Stacker, with Six-tined Jackson Fork93
[33].A Derrick Stacker93
[34].Lattice Rack for Feeding Alfalfa to Cattle106
[35].Box Rack for Feeding Alfalfa to Sheep106
[36].Lattice Rack for Feeding Alfalfa to Sheep107
[37].Box Rack for Feeding Alfalfa to Cattle107
[38].Trocar and Cannula119
[39].Alfalfa Field in Central New York124
[40].Fourth Cutting of Alfalfa in Shawnee County, Kansas124
[41].A Second Cutting of Alfalfa (July 28) in Shawnee County, Eastern Kansas125
[42].Kansas Farmer Viewing One of His Alfalfa Fields138
[43].Harvesting Alfalfa in Ohio139
[44].Showing Advantage of Early Fall Sowing154
[45].Five-year-old Alfalfa155
[46].Alfalfa One Year Old, Showing Effects of Inoculation170
[47].A Good Type of a Four-year-old Alfalfa Plant171
[48].Alfalfa Plant and Roots Showing Bacteria Nodules196
[49].Tubercles on Clover Roots197
[50].Peculiar Nodules in Groups on Small Rootlets206
[51].Alfalfa Roots Showing Normal Nodules207
[52].Gopher Poisoning Tool214
[53].And There’s Still More to Follow220
[54].Dead Prairie Dogs221
[55].Pot Culture Experiments at University of Illinois230
[56].Six Months’ Growth of Alfalfa Foliage231
[57].Cutting Alfalfa in Southern California256
[58].Baling Alfalfa in Southern Oklahoma256
[59].A 400-ton Rick of Alfalfa257
[60].A Cable Derrick, Provided with a Grapple Fork257
[61].Sweet Clover (Melilotus alba)288
[62].Yellow Trefoil (Medicago lupulina)289

A Typical Alfalfa Plant

as it appears before the blossoms are developed. From Michigan Experiment Station Bulletin No. 225

Typical Stems and Foliage of the Alfalfa Plant

when beginning to blossom the most suitable for hay. Grown in Shawnee County, Kansas, on unirrigated upland prairie with a “gumbo” or hardpan subsoil. From the season’s third cutting, August 20; height 24 and 26 inches

ALFALFA
(Medicago sativa, Linn.)

CHAPTER I.
History, Description, Varieties and Habits