: :Sfe 



Figure 2. — Effect of phosphate application on good soil: Treated (left); 



untreated (right). 



per acre of phosphate and 50 to 100 pounds of potash pay in obtaining 

 good stands and vigorous growth (fig. 2). 



Frequently a single large application of phosphate and potash fer- 

 tilizer is sufficient to produce two crops of crimson clover before it 

 becomes necessary to make another application. In some soils the 

 addition of such minor elements as boron may improve growth and 

 increase seed yields. Since the need for minor elements varies from 

 place to place, their use should be based on the recommendations of 

 the agricultural experiment station of the State in which the clover is 

 planted. 



Seed Sources and Varieties 



Before World War II more than half the crimson clover seed used 

 in the United States was imported, principally from Hungary and 

 France. Since 1938 domestic production has rapidly increased, reach- 

 ing more than 18 million pounds in 1942. Tennessee produced more 

 than half the home supply. Nearly all the crimson clover may be 

 called common crimson clover, since it does not represent strains or 

 varieties having special characteristics. White-flower strains and sev- 

 eral others that differ slightly in maturity have been selected but have 

 not been used. 



Dixie Crimson Clover 



Dixie crimson clover is a new hard-seeded variety that has given 

 promising results in extensive trials. It is more widely adapted than 

 common crimson clover, as it" grows well in the Gulf coast section and 

 appears to be slightly more winter-hardy than common crimson. 

 Dixie has successfully volunteered to good stands when grown in pas- 

 tures with Bermuda grass, with small grains for grazing, and in rota- 

 tion with such cultivated crops as sorghum or late-planted corn. 



Seed of Dixie shattered in harvesting operations has successfully 

 produced good volunteer stands in fall. When used in rotations with 



