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ÉTUDE DE L'INFLUENCE DE LA NATURE DU SOL SUR L'ACTION HERBICIDE DE LA SIMAZINE *
Author(s) -
BOUCHET F.
Publication year - 1967
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.1967.tb01359.x
Subject(s) - simazine , loam , chemistry , leaching (pedology) , calcareous , organic matter , calcareous soils , soil water , environmental chemistry , agronomy , environmental science , pesticide , botany , soil science , biology , atrazine , organic chemistry
Summary. Several biological tests were made to determine the effect of soil type on the activity of simazine. Studies with four soils‐a sandy loam, a loamy sand, a calcareous soil and an organic sand‐showed that after leaching with 200 mm water the greatest concentration of simazine remained in the superficial layer. In another experiment with aqueous suspensions of simazine and colloids it was found that simazine was strongly held by montmorillonite and especially by humic acids, but that herbicidal activity was not lost. A fourth experiment confirmed that free organic matter obtained from an organic sand is able to inactivate simazine.