Determination of the appropriate application rate for soil herbicides based on adsorption, biotest and soil properties

Kerpen, W.; Schmidt, R.R.

Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz (Sonderheft VIII): 271-281


Accession: 000629384

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The adsorption behaviour and the growth of oats and spring wheat in bioassays were studied in experiments with 14 soils treated with the herbicide methabenzthiazuron. The correlations between the soil properties and the amount of adsorption on the bioassay results depended significantly on the C and N content of the soils. Good correlations were found among the bioassays, and between the adsorption values and the bioassay results. It was thus possible to calculate application rates of methabenzthiazuron from formulae using these relationships.