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BACKGROUNDImazamox is an ionisable herbicide, weakly retained and with high soil vertical mobility, that is used for the control of the root‐parasitic plants Orobanche spp. A natural smectite (SW) modified with the biopolymer chitosan (Ch) or with Fe3+ cation was assayed as adsorbent or carrier for imazamox controlled‐release formulations (CRFs).
RESULTSThe greatest adsorption (74%) was observed...
We studied the interaction between the naturally occurring polycation spermine (SPERM) and Na-exchanged SWy-2 Wyoming montmorillonite (Na-SWy-2 Mt) and between spermine-exchanged montmorillonite (Mt-SPERM) and the herbicide fluometuron. Mt-SPERM with spermine contents ranging between 0 and 1.2 times the cation exchange capacity (CEC) of Na-SWy-2 were studied by XRD, FTIR and TGA analysis. Spermine...
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