Ecological Studies on the Establishment of Regionality in Early Planting Culture and Great Harvest of Rice Plant:Part. 1 Relation between the Regionality of Climate and Growth of Rice Plant in Aomori Prefecture

概要

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In 1957 and 1958, the experiments were carried out to make clear the relationships between the regionality of climate and growth of rice plants in Aomori Prefecture.The results are summarized as follows:1) There were close relationships between the regionality of climate and the growth of rice plants. The regional differences in climate were larger in 1957 (cold summer) than in 1958 (warm summer), and the differences in the growth and yields of rice plants were distinct in 1957.2) The growth of rice plants were divided into 3 types, according to the climatic conditions; seaside type, inland type and highland type.3) In Aomori Prefecture the north-easterlies, named "Yamase-winds", prevail in summer commonly. In 1958 the "Yamase-winds" were not prevailed, and high temperatures were prevailed in summer. However, the growth of rice plants in seaside region was inferior than inland region. In highland region, the yields were more decreased than previous year, owing to the low temperature in autumn.
日本農業気象学会の論文