INDEX 



615 



Sorghum, Continued. 



Sumac, 271. 



time of sowing, 267. 



utilization, 274. 



yield of forage, 269. 

 Sour clover, 425. 

 Source of seed, 73. 

 Soybeans, 513-538. 



agricultural history, 513. 



botany, 514. 



breeding, 536. 



climatic adaptations, 517. 



compared with cowpeas, 536. 



cultivation, 521. 



cutting, time of, 527. 



depth of seeding, 523. 



description, 516. 



desirable characters, 518. 



feeding value, 531. 



fertilizers, 528. 



Guelph, 520. 



Haberlandt, 519. 



Hollybrook, 519. 



importance, 518. 



inoculation, 524. 



Ito San, 520. 



life period, 526. 



Mammoth, 519. 



. Medium Yellow, 520. 



methods of seeding, 523. 



mixtures, 529. 



Peking, 521. 



pests, 535. 



pollination, 533. 



rate of seeding, 522. 



rotations, 530. 



seeding, 522, 523. 



seed production, 531. 



seeds, 534. 



silage, 530. 



soil adaptations, 517. 



soil preparation, 521. 



time of seeding, 522. 



varieties, 519. 



Wilson, 521. 



yields, of hay, 528. 



yields, of seed, 533. 

 Spergula arvensis, 576. 



maxima, 577. 



sativa, 576. 

 Sphacelotheca reiliana, 277. 



sorghi, 277. 

 Sphaerotheca sp., 511. 

 Spontaneous combustion, 36. 

 Spurrey, 576. 

 Square-pod pea, 489. 

 Standards of germination, 70. 



of purity, 70. 

 Starch values, 64. 

 Statistical classification of forage 



crops, 113-117. 

 Statistics, 113-122. 



alfalfa, 118. 



coarse forage, 118. 



corn, 118. 



cowpeas, 493. 



forage crops, 8. 



forage crops in Canada, 120-121. 



forage crops in United States, 

 117-120. 



grains cut green, 118. 



hay yields, 37. 



millet, 118-119. 



other tame and cultivated 

 grasses, 119, 120. 



pastures, 102. 



peas, 443. 



red clover, 391, 400. 



root forage, 120. 



seed production, 83. 



sorghum, 266. 



timothy, 124, 125. 



timothy and clover, 117. 



wild, salt or prairie grasses, 118. 

 Stizolobium deeringianum, 544. 



hassjoo, 546. 



niveum, 545. 

 Stover, definition, 2. 

 Straw, definition, 3. 

 Sudan-grass, 279-284. 



adaptations, 280. 



chemical analysis, 282. 



culture, 280. 



description, 279. 



hay, 281. 



mixtures, 282. 



seed production, 283. 



utilization, 281. 



