Determination of the approximate field rates of application of soil-acting herbicides from adsorption, bioassay and soil properties

Kerpen, W.; Schmidt, R.R.

Zeitschrift fur Pflanzenkrankheiten und Pflanzenschutz (Sonderheft 8): 271-281


Accession: 000336088

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The responses of oats and spring wheat bioassays to methabenzthiazuron determined in 14 different soils indicated significant correlations between both the amount of herbicide adsorbed by the soil and the plant response (in terms of fresh wt., dry wt., and % undamaged plants) and the C and N contents of the soils. Good correlation was also evident between the bioassay responses and herbicide adsorption. Using the data obtained, rates of application according to soil type could be calculated. From summary.