. Bulletin. Agriculture. On tlio Phjsioloj^ioal Action of Iodine and Fluorine Componnds on A??ric. Plants. 479 D. On the influence of sodimn fluorid on radish. By K. A so. T\vo plots, each measuring" lo square metre, had received during the summer, and 0-o6g NaF., and again shortly before sowing the seeds of radish, they received and o-oSg. sodium fluorid respectively. The manure was the same as mentioned in the above field experiment with potassium iodid. The radish was sown on October i, and the young plants thinned out on Nov. 4. Towards middle of December a difference in de
. Bulletin. Agriculture. On tlio Phjsioloj^ioal Action of Iodine and Fluorine Componnds on A??ric. Plants. 479 D. On the influence of sodimn fluorid on radish. By K. A so. T\vo plots, each measuring" lo square metre, had received during the summer, and 0-o6g NaF., and again shortly before sowing the seeds of radish, they received and o-oSg. sodium fluorid respectively. The manure was the same as mentioned in the above field experiment with potassium iodid. The radish was sown on October i, and the young plants thinned out on Nov. 4. Towards middle of December a difference in development between these plants and control plants was very plain. The plants were harvested on Dec. 24 with the following results :—. A stimulating action of considerable magnitude is therefore quite evident and it is of special interest that the smaller quantity . sodium fluorid has produced a better result than the ten times larger quantity. The cost of production of the increased amount of radish is to be seen from the following calculation : NaT applied for 10 square metres = o. I4g. ,, corresponding to i ha. — 140 g- Its cost = sen. Increase of harvest [)er 10 = 56 Kg. ,, corresponding to i ha. = 4156 Kg. Its \alue -- ven. I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Tokyo Daigaku. Nogakubu. Tokyo
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