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Effect of Nitrogenous Materials on the Uptake of Triazine Herbicides

Published online by Cambridge University Press:  12 June 2017

Wm. Harold Minshall
Wm. Harold Minshall*
Affiliation:
Research Institute, Research Branch, Canada Department of Agriculture, University Sub Post Office, London, Ontario, Canada
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Abstract

An application of potassium nitrate or urea to the soil of detopped potted tomato plants [Lycopersicon esculentum Mill.] increased the rate of exudation from the stumps of the plants from 100 to over 300% and increased the concentration of 2-chloro-4-ethylamino-6-isopropylamino-s-triazine [atrazine] in this augmented exudate from 9 to 40%. Atrazine applied to the soil at 2:00 PM was detected in the stump exudate within 10 min and with an application of 3500 μg per pot it was approaching its maximum concentration by the end of 3 hr. The build-up in the concentration of atrazine in the exudate occurred at a faster rate in plants treated with potassium nitrate than in water control plants. Increasing the soil temperature from 10 to 30 C increased the rate of exudation and at each temperature an application of potassium nitrate or of urea increased the concentration of atrazine in the augmented exudate. In addition to atrazine, 2-chloro-4,6-bis(isopropylamino)-s-triazine [propazine], 2-methoxy-4,6-bis(isopropylamino)-s-triazine [prometone], and 2-methoxy-4-ethylamino-6-isopropylamino-s-triazine [atratone] were applied at 1750 and 3500 μg/pot. The concentration of these triazines in the exudate increased directly with their solubility in water. An application of urea increased the concentration of all four triazines in the exudate.

Type
Research Article
Information
Weed Science , Volume 17 , Issue 2 , April 1969 , pp. 197 - 201
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

1. Fried, M. and Broeshart, H. 1967. The Soil-Plant System in Relation to Inorganic Nutrition. Academic Press, New York and London. 358 p.Google Scholar
2. Grunes, D. L. 1959. Effect of nitrogen on the availability of soil and fertilizer phosphorus to plants. Adv. Agron. 11:369–396.CrossRefGoogle Scholar
3. Hull, Herbert M. (Chm., Handbook Comm.). 1967. Herbicide Handbook of the Weed Society of America. W. F. Humphrey Press Inc., Geneva, N.Y. 293 p.Google Scholar
4. Minshall, W. H. 1964. Effect of nitrogen-containing nutrients on the exudation from detopped tomato plants. Nature 202:925–926.CrossRefGoogle Scholar
5. Minshall, Wm. Harold. 1968. Effects of nitrogenous materials on translocation and stump exudation in root systems of tomato. Can. J. Botany 46:363–376.Google Scholar
6. Rennie, D. A. and Soper, R. J. 1958. The effect of nitrogen additions on fertilizer-phosphorus availability. II. J. Soil Sci. 9:155–167.CrossRefGoogle Scholar
7. Spencer, E. Y. 1968. Guide to the Chemicals Used in Crop Protection. Fifth edition. Canada Dep. Agr. Publ. 1093. 483 p.Google Scholar