Abstract
An experiment of foundation work was attempted to establish pasture on Ando soil in mountainous area which was located in the northeast of Lake Towada, Aomori Prefecture. Cutting and banking were carried out only at the limited part of steep slope for reducing scales and costs. The edges of banking land were consolidated by the compaction using a bulldozer for preventing soil erosion and landslides. Then, pasture establishment was attempted on both cutting and banking lands. Herein are reported the results that pasture establishment was carried out on the banking land. The banking land consisted of the mixture of two different kinds of undesirable subsoil ; one part of "Ao-ban" (bluish platy layer) and two parts of "Akatsuchi" (reddish friable layer), according to their poor physical and chemical properties. Despite of their undesirable properties, a good pasture of orchard grass-ladino clover mixture was made by the following applications of fertilizers and seed mixture ; basal fertilizers (kg/ha): hydrated dolomitic lime 1000-1500, P_2O_5 300, N 50, K_2O 50, additional fertilizers: N 50, P_2O_5 50, K_2O 50, and seed mixture (kg/ha): Italian ryegrass 15, orchardgrass 15, ladino clover 10, with reseeding of Italian ryegrass 20, orchardgrass 20, ladino clover 20, respectively.
