1. In the district of Seto Inland Sea, most of orchards are located on the granitic soil or on the diluvial soil originated from granite. Inthis experiment the effects of application of N, P, K, and Ca fertilizers on the growth and yield of grapes were studied by planting vines in the pots filled with either the granitic soil or the diluvial soil.2. When observed with non-fruiting vines in the first and second experimental years. the growth in both soils was most inferior at the non-fertilizer plot, followed by in the orde of at the non-P plot and at the non-N plot. On the contrary, the non-K plot and the non-Ca plot were similar or somewhat superior to the completely fertilized plot in their growth. However, in the third experimental year the growth became most inferior at the non-K plot, probably on account of fruit bearing. When the barnyard manure was added to the completely fertilized plot, the growth was more promoted.3. In a comparison of the growth beetween the both soils, the granitic soil was better than the diluvial soil in all the plots. With the progress of the experimental year, it became difficult of find out any difference of the growth among the non-K plot, the non-Ca plot, the completely fertilized plot, and the completely fertilized plot applied with the barnyard manure.4. When the effect of fertilization on the fruit bearing was observed, no flower cluster was born at the non-fertilizer plot and non-P plot of the granitic soil and at the non-P plot of the diluvial soil. Although flower clusters were born, number of berry clusters and their total weight were least, and their maturity was markedly delayed at the non-N plot of both soils. This trend was more remarkable in the granitic soils. Concerning the number of berry clusters and their total weight, the non-K plot, the non Ca plot and the completely fertilized plot applied with barnyard manure in both soils were all similar or somewhat superior to the completely fertilized plot. When compared throughout all the plots, both soils were almost the same in the number of berry clusters, but the granitic soil produced heavier crops in weight and the diluvial soil bore the berries of higher sugar content.