The Effect of the Soot in Smoke On Vegetation
The Effect of the Soot in Smoke On Vegetation
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The following quantities of soot were used : Case No. 1, 23. 4 gm. Per square meter. No. 2, 11. 7 gm. Per square meter. No. 3, 12. 96 gm. Per square meter No. 4, Control. At the end of the experiment although all plants were alive, nevertheless many of the older leaves were entirely killed and ready to fall off. The younger leaves on the whole endured the treatment better than the older ones. 20 THE SMOKE INVESTIGATION EXPERIMENT V. Begun July 2, 1913. Selected Fir plants in the Col- lege nurse...ry. Applied small quantities of soot every other day until about July 21, 1913. Quantities were of Sample C. The following amounts were used: Case No. 1, 3. 78 gm. Per square meter. No. 2, 2. 97 gm. Per square meter. No. 3, 3. 6 gm. Per square meter. No. 4, Control. At the end of the experiment all plants seemed to be in good condition. No difference could be seen among them. EXPERIMENTS WITH PEA SEEDLINGS. (a) Samples of soil taken from the surface and at a distance of two inches from the surface from near the mills at Homestead and tested for the presence of toxic gases by a method devised by Crocker, Knight and Rose (8) gave negative results.
What to read after The Effect of the Soot in Smoke On Vegetation?
You can find similar books in the "Read Also" column, or choose other free books by J F Joseph Franklin Clevenger to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The following quantities of soot were used : Case No. 1, 23. 4 gm. Per square meter. No. 2, 11. 7 gm. Per square meter. No. 3, 12. 96 gm. Per square meter No. 4, Control. At the end of the experiment although all plants were alive, nevertheless many of the older leaves were entirely killed and ready to fall off. The younger leaves on the whole endured the treatment better than the older ones. 20 THE SMOKE INVESTIGATION EXPERIMENT V. Begun July 2, 1913. Selected Fir plants in the Col- lege nurse...ry. Applied small quantities of soot every other day until about July 21, 1913. Quantities were of Sample C. The following amounts were used: Case No. 1, 3. 78 gm. Per square meter. No. 2, 2. 97 gm. Per square meter. No. 3, 3. 6 gm. Per square meter. No. 4, Control. At the end of the experiment all plants seemed to be in good condition. No difference could be seen among them. EXPERIMENTS WITH PEA SEEDLINGS. (a) Samples of soil taken from the surface and at a distance of two inches from the surface from near the mills at Homestead and tested for the presence of toxic gases by a method devised by Crocker, Knight and Rose (8) gave negative results.
What to read after The Effect of the Soot in Smoke On Vegetation?
You can find similar books in the "Read Also" column, or choose other free books by J F Joseph Franklin Clevenger to read onlineMoreLess
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