土壌の反応並に其の石灰含量と作物の生育に就て : 第一報 豆科緑肥作物及び青刈玉蜀黍

抄録

The soil used for this experiment is a highly unsaturated mineral soil of tertiary origin. To this soil added CaCO_3 in ascending rate of amount and planted in pot several kinds of leguminous green manure crops and green corn. The experiments were carried out in two plot series. The one is a series of seven plots and the other is ten plots. The reaction and lime content of each plots, yield and nitrogen content of harvests are briefly summarized in following tables. A. Seven plots series. 1. Soil reaction and lime content. [table] 2.Yield and nitrogen content, the maximum as 100 [table] B. Ten plots series 1. Soil reaction and lime content. [table] 2. Yield and nitrogen content, the maximum as 100 [table] (1). Genge (Astragalus Sinicus) is by far the wide spread green manure of rice field in Japan. From the above tables one can easily recognise the behavior of these crops for the soil reaction and its lime content.