284 CLOVERS 



so much of renovation to these for the labor in- 

 volved. 



Place in the Rotation. Japan clover can scarcely 

 be classed as a rotation plant in the strict sense of 

 the term, since it more frequently comes into the 

 fields, as it were, spontaneously, and owing to the 

 uncommon degree to which it has the power of re- 

 seeding itself, it is frequently grown and grazed for 

 successive years on the land upon which it has been 

 allowed thus to grow. Nevertheless, since it is a 

 nitrogen gatherer, when it has fertilized the land 

 sufficiently by bringing to it a supply of nitrogen 

 and by putting humus into it, crops should follow 

 such as require much of growth to grow them in 

 best form. Such are cotton, corn and the small 

 cereal grains. Owing to its power to grow on worn 

 and even on abandoned soils, and to crowd weeds 

 that grow on them, on such soils it comes in be- 

 tween the cessation of cultivation and the resump- 

 tion of the same. It frequently grows as a volun- 

 teer crop along with Johnson grass, and where it 

 comes, it tends to crowd grasses of but little value, 

 as brown sage. 



Where pasture is desired winter and summer, it 

 should be quite possible in some localities to obtain 

 it by sowing such crops annually, as winter oats and 

 sand vetches (Vicia villosa) every autumn, and the 

 seed of Japan clover on the same. The crops first 

 named would provide winter and spring grazing, 

 and the clover, summer and autumn grazing. The 

 clovers and the vetches would both aid in fertiliz- 

 ing the land. 



