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Decomposition of cyanamide and dicyanodiamide in the soil

Published online by Cambridge University Press:  27 March 2009

G. A. Cowie
G. A. Cowie
Affiliation:
(Rothamsted Experimental Station, Harpenden.)
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Extract

The present investigation was undertaken to study the decomposition of cyanamide and dicyanodiamide in the soil and their specific action on plant growth. Their close chemical relationship necessitated a comparison of their respective behaviour in the soil. Dicyanodiamide is a polymer of cyanamide to which the formula C2H4N4 is assigned. Morrell and Burgen(1) and Werner (2) have shown that the polymerisation is caused by acids or alkalis, even in small amount, but a weak alkali is substantially more effective than a correspondingly weak acid; the rate of the change is greatly increased by raising the temperature. The process does not appear to be reversible.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 9 , Issue 2 , April 1919 , pp. 113 - 136
Copyright
Copyright © Cambridge University Press 1919

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References

REFERENCES

(1)Morrell, and Burcen, . Journal of the Chemical Society, Transactions, 105, 1, 1914, 576.Google Scholar
(2)Werner, . Journal of the Chemical Society, Transactions, 107, 1, 1915, 715.Google Scholar
(3)Hofmann, . Ber. d. Chem. Ges. Bd. 18, 2782, Bd. 19, 2086.Google Scholar
(4)Baumann, . Ber. d. Chem. Ges. Bd. 7, 446.Google Scholar
(5)Bamberger, . Ber. d. Chem. Ges. Bd. 16, 1074, Bd. 26, 1593.CrossRefGoogle Scholar
(6)Rathke, . Ber. d. Chem. Ges. Bd. 18, 3102.CrossRefGoogle Scholar
(7)Pohl, . Chem. Ztg. Repert. 1908, 321. Journ. f. prakt. Chemie (2), 77, 533.Google Scholar
(8)Miyake, . Journal of the American Chemical Society, 39, No. 11, 2378.CrossRefGoogle Scholar
(9)Immendorff, . Fühlings Landw. Ztg. 1905, 787.Google Scholar
(10)Kappen, . Cent. für Bakt. Abt. II, Bd. 22, 1909.Google Scholar
(11)Brenohley, , Winifred, E.. “Inorganic Plant. Poisons and Stimulants.” Organic Plant Poisons, Annals of Botany, 31, Nos. 123 and 124, 32, No. 126.Google Scholar
(12)Gerlach, and Wagner, . Deutsche Landw. Presse, 1903, 367.Google Scholar
(13)Immendorff, . Fühlings Landw. Ztg. 1905, 792.Google Scholar
(14)Seelhorst, and Müther., Journal für Landwirtschaft, Bd. 53, 1905, 349.Google Scholar
(15)Perotti, R.Centralblatt für Bakl. Abt. II, Bd. 18, 1907, 55.Google Scholar
(16)Ulpiani, Cent. für Bakt. Abt. II, Bd. 19, 1907, 337.Google Scholar
(17)Loew, . Chem. Zeit. 1908, No. 57, 1909, No. 3.Google Scholar
(18)Aso, . Journal of the College of Agriculture, Tokyo, 1, 1909–1913, 211.Google Scholar
(19)Inouje, Journal of the College of Agriculture, Tokyo, 1, 1909–1913, 193.Google Scholar
(20)Stutzer, and Reis, Journal für Landw. Bd. 58, 1910, 73.Google Scholar
(21)Brioux, Annales de la Science Agronomique, III, Série 5, Année 1910, Tome I, 280.Google Scholar
(22)Truninger, . Chem. Zeit. 1916, 40, 812–813.Google Scholar
(23)Pfeiffer, and Simmermacher, Landw. Ver. St. Bd. 90, 415–430.Google Scholar
(24)Voelcker, J. A.Journal of the Royal Agricultural Society, 77, 1916, 254; 78, 1917, 237.Google Scholar
(25)Russell, E. J.Journal of Agricultural Science, 6, 53.Google Scholar
(26)Potter, and Snyder, . Journal Indus. Engin. Chem. 7, 221–226.Google Scholar