After the winter and early spring crops have been harvested the narrow ridges on which they are grown are turned into the furrows by means of their simple plow drawn by a heavy bullock, different from the cattle in China but closely similar to those in Japan. The fields are then flooded until they have the appearance seen in Fig. 12. Over these flooded ridges the green grass and oak boughs are spread, when the fields are again plowed and the material worked into the wet soil. If this working is not completely successful men enter the fields and tramp the surface until every twig and blade is submerged. The middle section in this illustration has been fitted and transplanted; in front of it and on the left are two other fields once plowed but not fertilized; those far to the right have had the green manure applied and the ground plowed a second time but not finished, and in the immediate foreground the grass and boughs have been scattered but the second plowing is not yet done. We passed men and bullocks coming from the hill lands loaded with this green herbage and as we proceeded towards Fusan more and more of the hill area was being made to contribute materials for green manure for the cultivated fields. The foreground of Fig. 211 had been thus treated and so had the field in Fig. 212, where the man was engaged in tramping the dressing beneath the surface. In very many cases this material was laid along the margin of the paddies; in other cases it had been taken upon the fields as soon as the grain was cut and was lying in piles among the bundles; while in still other cases the material for green manure had been carried between the rows while the grain was still standing, but nearly ready to harvest. In some fields a full third of a bushel of the green stuff had been laid down at intervals of three feet over the whole area. In other cases piles of ashes alternated with those of herbage, and again manure and ashes mixed had been distributed in alternate piles with the green manure. In still other cases we saw untreated straw distributed through the fields awaiting application. At Shindo this, straw had the appearance of having been dipped in or smeared with some mixture, apparently of mud and ashes or possibly of some compost which had been worked into a thin paste with water.