抄録
1. The paddy soils (alluvial loam) of cylinder experiment, which were manured with different combinations of sulphates (ammonium sulphate, potassium sulphate), chlorides (ammonium chloride, potassium chloride), sodium phosphate, calcium superphosphate, farmyard manure etc., were found to contain much more of fine and coarse sands and less of clay as compared to that of unmanured soils. But no such definite relation was found to exist in the case of silt. 2. Clay found in soils of chloride plots was in larger proportion than that of sulphate, but silt and fine sand were just the opposite. The amount of fine sand showed no clear relations between both salts. 3. Farmyard manure seems to act to compensate the minute soil particles, which will dissolve away by the use of chloride fertilizer.