甘藷に及ぼす石灰の影響について

概要

論文の詳細を見る
They were many experiments and observations on the effect of calcium fertilizer upon the growth of crops, and they are very important and interesting in sweet potato culture. The writer studied the effect of calcium upon the growth of sweet potato and two varieties Taihaku and Okinawa No.100 were used. Prominent differences in number of side branches, thickness of leaf, weght of living leaf, moisture contents of sweet potato, and size of starch granule were not recognized. But when calcium fertilizer was given at August 20, elongation of main stem was checked, transpiration and carbon-dioxide assimilation became vigorous, and chlorophyII contents in leaf was excellently increased, and yields of sweet potatoes increased 50% in variety Okinawa No.100 and 34〜40% in Taihaku. The physiological action that the calucium fertilizers give to sweet potato plants can not disucuss in this research.
日本作物学会の論文
1950-08-30