1. Planted area and harvesting method of main grain and pulses in Japan. Area planted to rice in Japan had decreased from year to year since 1978. due to the new program named Reorganization of Paddy Field Utilization, which started in 1978 with an aim of improving the overall self-sufficiency of agricultural products in response to the changes in their demand, by balancing demand and supply of rice, and the area of rice in 1990 resulted in about 2,074,000 ha. The other way, the Planted area of Wheat. barley. soybean and other priority crops in the new program increased. Table 1 Planted area and barvesting netbod of principal crops