Influence of soil pH-sorption interactions on the carry-over of fresh and aged soil residues of imazamox

被引:35
作者
Bresnahan, G [1 ]
Dexter, A
Koskinen, W
Lueschen, W
机构
[1] N Dakota State Univ, Dept Plant Sci, Fargo, ND 58105 USA
[2] ARS, USDA, St Paul, MN 55108 USA
[3] Univ Minnesota, Dept Agron & Plant Genet, St Paul, MN 55108 USA
关键词
desorption; aged residues; bioavailability;
D O I
10.1046/j.1365-3180.2002.00261.x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Long-term carry-over of some imidazolinone herbicides has been observed in soil that is below pH 6.5., resulting in significant damage to sugarbeet. In a field study in south-west Minnesota, imazamox concentration decreased rapidly in soil, regardless of pit. Despite similar amounts of aged soil residues of imazamox remaining at different pH levels, bioavailability differed with pH as a result of pH effects on sorption desorption interactions. At low pH, more imazamox was sorbed than at high pH, but it was readily desorbed. At high pH, less imazamox was sorbed initially, but it did not readily desorb. Thus, after 3 months, the remaining imazamox in low-pH soil was desorbable and bioavailable, resulting in injury to oilseed rape and sugarbeet. In aged, low-pH soil, adding lime released bound imazamox, which was then degraded, resulting in less carry-over.
引用
收藏
页码:45 / 51
页数:7
相关论文
共 13 条
[1]   LOSS-ON-IGNITION AS ESTIMATE OF ORGANIC MATTER + ORGANIC CARBON IN NON-CALCAREOUS SOILS [J].
BALL, DF .
JOURNAL OF SOIL SCIENCE, 1964, 15 (01) :84-&
[2]   Influence of soil pH-sorption interactions on imazethapyr carry-over [J].
Bresnahan, GA ;
Koskinen, WC ;
Dexter, AG ;
Lueschen, WE .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2000, 48 (05) :1929-1934
[3]  
CARRUTHERS A, 1961, INT SUGAR J, V63, P137
[4]   PHLOEM TRANSLOCATION OF PYRIDINECARBOXYLIC ACIDS AND RELATED IMIDAZOLINONE HERBICIDES IN RICINUS-COMMUNIS [J].
CHAMBERLAIN, K ;
TENCH, AJ ;
WILLIAMS, RH ;
BROMILOW, RH .
PESTICIDE SCIENCE, 1995, 45 (01) :69-75
[5]   EFFECT OF PH ON SORPTION AND DESORPTION OF IMAZAQUIN AND IMAZETHAPYR ON CLAYS AND HUMIC-ACID [J].
CHE, M ;
LOUX, MM ;
TRAINA, SJ ;
LOGAN, TJ .
JOURNAL OF ENVIRONMENTAL QUALITY, 1992, 21 (04) :698-703
[6]   Effect of imazamox, fomesafen, and acifluorfen soil residue on rotational crops [J].
Cobucci, T ;
Prates, HT ;
Falcao, CLM ;
Rezende, MMV .
WEED SCIENCE, 1998, 46 (02) :258-263
[7]   Changes in sorption of imidacloprid with incubation time [J].
Cox, L ;
Koskinen, WC ;
Yen, PY .
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1998, 62 (02) :342-347
[8]   SORPTION AND DESORPTION OF IMAZETHAPYR AND 5-HYDROXYIMAZETHAPYR IN MINNESOTA SOILS [J].
GAN, JY ;
WEIMER, MR ;
KOSKINEN, WC ;
BUHLER, DD ;
WYSE, DL ;
BECKER, RL .
WEED SCIENCE, 1994, 42 (01) :92-97
[9]  
KOSKINEN WC, 1990, SSSA BOOK SERIES, V2, P51
[10]   DESORPTION-KINETICS OF PICLORAM AS AFFECTED BY RESIDENCE TIME IN THE SOIL [J].
MCCALL, PJ ;
AGIN, GL .
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 1985, 4 (01) :37-44