90 



ductive varieties of each year included Maiiimoth Yel- 

 low seven times; Blackbeauty and HoUybrook each five 

 times; Edward, Haberlandt, Ebony, and Wilson each 

 three times; Baird, Acme, Shanghai, and Swan each 

 two times; Flat King, Peking, Sherwood, Virginia, 

 Biloxi, and Otootan each one time. 



The varieties leading in production of seed have 

 coarse, erect stems and require from 115 to 135 days 

 to mature seed. The early varieties never ranked high 

 in seed or hay production. 



The percentage of straw to grain differs with differ- 

 ent varieties. Blackbeauty averaged 42 per cent of 

 grain; HoUybrook, 40 per cent; Ebony, 38 per cent; 

 Mannnoth Yellow, 34 per cent; Biloxi, 29 per cent; 

 Otootan, 20 per cent, and Barchct, only 18 per cent. 



In 1917 in co-operation with the U. S. Department of 

 Agriculture, 41 varieties and strains were grown, — 28 of 

 which yielded 50 per cent less grain than Mammoth Y'el- 

 low, and none of which equalled it. The varieties dif- 

 fered widely in per cent of fat and protein — there 

 being 10 per cent between the highest and lowest 

 yielding varieties. 



Soy beans make excellent hay and are easily cured. 

 In a test of 10 varieties the average yield of hay ranged 

 from 2332 pounds per acre to 5658 pounds, lliey re- 

 quired from 85 to 112 days from date of planting to 

 date of mowing. The late varieties made the largest 

 tonnage. 



Mammoth Yellow and Biloxi are erect and make a 

 somewhat woody hay. Some of the varieties like Ebony, 

 HoUybrook, Wilson, and Otootan have an abundance 

 of leaves and produce a good quality of hay. 



The rate of seeding for hay of the Mannnoth Y'cllow 

 variety giving the largest tonnage was 45 pounds per 

 acre drilled in 2V2 foot rows. The thicker seeding 

 gave a better ([uality of hay, liaving less coarse, woody 

 stems. 



Soy beans and cowpeas mixed at the rate of five 

 pecks each and seeded l)roadcast produced an average 

 of about IVi tons of excellent hay. The amount of 

 hay was not greatly increased by combining the two 

 legumes, lliough its quality and ease of curing were 

 increased. When the rate of seeding was reduced from 

 five pecks to 48 ])o(mds ])er acre and sown broadcast, 

 th(^ yield was not reduced; but wlien the soy beans were 

 seeded alone at the rate of 01 pounds |)er acre, the 



