=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 between the cessation of cultivation and the resumption of the same. It frequently grows as a volunteer 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 fertilizing the land. =Preparing the Soil.=--While careful preparation of the land will result in more certain and uniform germination in the seed, and more rapid growth in the plants, careful preparation of the seed is not so necessary with Japan clover as with many other pasture and hay plants. The seeds are strong in germinating power and the plants are much able to grow, even under adverse conditions, when they do germinate. Usually, the preparation which is suited to nurse crops, amid which this clover is sown, will be suited also to the clover when it is sown thus. In many instances, however, it is allowed to re-seed itself where it has been once sown, or even where it may have come into the soil without sowing. In this way successive pasture crops have been obtained. But usually where hay crops are wanted, it will prove more satisfactory, all things considered, to sow the seed. In many instances, simply scarifying the ground has been found a sufficient preparation for the seed. Any implement that will pulverize the surface for a few inches downward will answer for such work. In very many instances, seed, of course, self-sown has become rooted and grown vigorously on unplowed land.