In the present paper, are given the results of studies on the germination test of 18 varieties of wild legumes, including lespedeza, on the field Conditions, from December 1954 to May 1955 with one month interval. 1) The germination of 13 varieties were good in the first decade of April and another 4 varieties were delayed more than 13 varieties. This fact showed us that the date of germination is rather earlier than compared with that generally coosidered in our regions. 2) The most good germination percentage was obtained in Februay by 8 varieties. March by 7 varieties and April and May by 5 varieties. 3) By the results of this experiments, from the view point of germination, we can possible to hasten the time of seeding before March.

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1. This experiment was undertaken to find proper methods of Converting a natural grassland to a grass caver. 2. In this experiment, seven methods of the seedbed preparation before seeding were employed as follows: 1) Plowing 2) Burning after Cutting 3) Cutting 4) Application of 30^<Kg> dry salts of sodium chlorate (NaClO_3) per acre 5) Application of 120^<Kg> dry salts of sodium chlorate per acre 6) Application of 240^<Kg> dry salts of sodium chlorate per acre 7) Burning after application of 240^<Kg> dry Salts of sodium chlorate per acre. 3. In the plots of cutting and of 30^<Kg> NaClO_3, the good grass stands were not established in the first year. If the cutting and additional fertilization are continued repeatedly in this year, the good grass stands will be established. 4. The plot of burning after cutting gave two different results: high and low yields of hervage. It seems that this difference is due to whether the burning is employed effectively. Therefore, if the burning is employed effectively, this methods will be useful. 5. The other four plots showed high yields of hervage; especially the plot of burning after application of 240^<Kg> NaClO_3 brought the highest yields. 6. The yield of hervage in the second cutting was higher than that in the first or the third one, relating to the additional fertilization. This fact just stated suggests that the attempt to convert a natural grassland to a grass cover will be fail unless additional fertilizer is applied.

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The pearl millet plants were grown in rows 60am apart being spaced 10am (thick plots) and 75am (thin plots) in rows. They were clipped at the prehead, bloom and dough stages of growth, respectively. Plant weight and relative weight of stalks, heads and leaves were weighed and their chemical compositions were analysed. The summarized results were as follows: 1 Weight per plant in thick plots was approximately one-third comparing that in thin plots, but percent yields of each plant components were little affected by the spacing at each stage. 2 It is considered by the chemical analysis that feeding value is higher in leaves and heads than in stalks. The possibility might be unexpected from the above results that increases the relative yield of leaves, which have heigher feeding value compared with stalks, due to plant-spacing.

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From 1951 to 1953, the experiments are carried out in order to give animals fresh soilings continuously from March to May and to get seed-yields at the same time. The results were summerised as follows: (1) The later the mowing-time is, the more incrases rapidly the weight of soilings, but inversely proportional to it, the growth of rape plants after mowing are abnormal and their seed-yields decrease rapidly. (2) The seed-yields can only be expected when they are mowed at the height of more than 2 "sun", before the middle of March in the early variety and the beginning of April in the late variety. (3) Until the beginning of flowering time, rape plants are good soiling crops, but after flowering time they are unsuitable soilings, for their increased fibres. (4) The weight of clipping-leaves of rape plants are heavier comparatively until the middle of April is the early variety and the beginning of May in the late variety. So it seams possible to obtain green soilings from March to May by planting both varieties. (5) The amount of crude protein in clipping leaves are much greater in earlier stages and decreases gradually in later stages, at the period of full loom it increases again and there after decreases rapidly. (6) It seems probable that the effect of clipping leaves on the seed-yield is less in the early variety than in the late variety. (7) In growing the rape plants on double purpose, clipping leaves are more profitable than green mowing.

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In order to establish the technique of seed production in orchard-grass, researches were made with orchard grass on tillering which has close relation with seed yield. (1) Orchard grass, being perennial and of vigorows vegetative growth, develops continuously a number of tillers, In these experiments about six hundred of tillers in total developed per plant during a year under field condition. (2) There were found three peaks in the whole year's curve of tillering of orchard grass, namely, those in March, June and Octover. (3) In the first year, the major part of the seed yield of orchard grass was obtained from the tillers of first, second and third orders, of which the highest yield was from that of second order. In the second year, the major part of the yield was obtained from the tillers of forth, fifth and sixth orders, the fifth giving the highest yield. (4) As to the heading tiller percentage, that of fall-midwinter tillers was relatively high, while it fell acutely down in early spring tillers. (5) Many of the main stems of orchard grass stopped growing in the midway. Even in those which headed and ripened, the seed yield was relatively small. (6) From the comparison of the length of the maturing periods in the first year with that in the second year, the latter was found remarkably shorter, making seed production technically more efficient.

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The Abukuma- and the Naruse-river sides are picked up as the experimental grassland for the cultivation of the following kinds, namely; orchard grass, timothy, kentucky 31 fescue, red・clover and ladino・clover, with the purpose to get the comparison of adaptabilities of the grasses and effects of fertilizing management. The results of the study can be summarized as follows: 1. The yield of red・clover plot in richest for the first and second year, but its difference from the other grasses becomes less since the third year. 2. The growing condition of timothy is slower than those of kentucky 31 fescue and orchard grass, while the kentucky 31 fescue shows very strong registive force even at low degree of temperature. 3. It is red・clover plot among the experimental ones that weeds grow remarkably thick after the third year from seeding. The effect of fertilization to control the thick growth of weeds is not specially recognized. 4. The experimental plot is inundated with overflow of the river every year but there is observed scarecely its influence on the growth of grasses mentioned above.

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(1) It is the best way of pasture improvement to broadcast ladino clover before the middle of October at the dry river-bed under the nice conditions in warm region. (2) Many pastures except ladino clover have died out in the condition of grazing at the dry river-bed. (3) It is very difficult to imorove the pastures of embankment, having bad soil conditions and often suffering seasonal drought disasters, in warm region. We can not yet find the pastures which strengthen the structure of embankment and moreover grow to the fodders. (4) In the pasture jmprovements of embankment, it is the most important pre-condition to cut down and take away the undesirable shrubs and weeds.

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