Uptake of carbofuran-14C by rice plants after root zone application as a controlled release formulation |
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| Institution: | 1. Universitas Pembangunan Nasional Veteran Jawa Timur, Jl. Rungkut Madya No.1, Gn. Anyar, Kec. Gn. Anyar Jawa Timur, Surabaya 60294, Indonesia;2. Center Innovation of Appropriate Technology for Lowland and Coastal Food, Universitas Pembangunan Nasional Veteran Jawa Timur, Jl. Rungkut Madya No.1, Gn. Anyar, Kec. Gn. Anyar Jawa Timur, Surabaya 60294, Indonesia;3. Study Program of Chemical Engineering, Faculty of Engineering and Science, Universitas Pembangunan Nasional Veteran Jawa Timur, Jl. Rungkut Madya No.1, Gn. Anyar, Kec. Gn. Anyar Jawa Timur, Surabaya 60294, Indonesia;4. Universitas Tribhuwana Tunggadewi, Jl. Telaga Warna, Tlogomas, Kec. Lowokwaru, Kota Malang, Jawa Timur 65144, Indonesia |
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| Abstract: | Uptake of Carbofuran-14C by rice plants after root zone application of a EVA based controlled release formulation and of Furadan as a conventional control was investigated under field conditions. Using 3.6–3.9 kg a.i./ha, 14C-concentrations in grain (1.3–1.8 mg/kg) and straw (15.9–16.1 mg/kg) were in the same range for both formulations, while contamination of paddy water and soil (at μg/kg level) has been 30–40% lower in plots treated with EVA formulation than with Furadan. Besides slowing down the release of a.i., EVA matrix also prevents an early hydrolysis of incorporated Carbofuran to Carbofuranphenol and keeps therefore its insecticidal efficacy. |
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