Gómez Isidoro, García-Martínez Ana María, Osta Paloma, Parrado Juan, Tejada Manuel
Grupo de investigación "Edafología Ambiental", Departamento de Cristalografía, Mineralogía y Química Agrícola, E.T.S.I.A., Universidad de Sevilla, Crta de Utrera km. 1, 41013, Seville, Spain.
Bull Environ Contam Toxicol. 2015 May;94(5):622-6. doi: 10.1007/s00128-015-1528-2. Epub 2015 Mar 28.
We studied the effect of mefenoxam on soil biochemical properties. Soil was mixed with three rates of mefenoxam (0.5, 1 and 2 L ha(-1)) and incubated for 83 days. Fungicide was applied to the soil four times during the experiment, according to the manufacturer's instructions. Soil ergosterol, dehydrogenase, urease, β-glucosidase, and phosphatase activities were measured during the experiment. Compared to controls, soils with the highest doses of mefenoxam demonstrated decreased ergosterol and dehydrogenase activities by 81 and 27 %, respectively; whereas, urease, β-glucosidase, and phosphatase activities increased. These results suggest that mefenoxam may possibly have consequences for agronomic crop production due to the negative effect on soil fungal populations and stimulation of the growth of soil bacterial activity.
我们研究了甲霜灵对土壤生化特性的影响。将土壤与三种用量的甲霜灵（0.5、1和2升公顷⁻¹）混合，并培养83天。在实验期间，按照制造商的说明，向土壤中四次施用杀菌剂。在实验过程中测量了土壤麦角固醇、脱氢酶、脲酶、β-葡萄糖苷酶和磷酸酶的活性。与对照相比，施用最高剂量甲霜灵的土壤中麦角固醇和脱氢酶活性分别降低了81%和27%；而脲酶、β-葡萄糖苷酶和磷酸酶的活性则有所增加。这些结果表明，由于甲霜灵对土壤真菌种群有负面影响并刺激土壤细菌活性的增长，可能会对农作物生产产生影响。
