Effects of glyphosate application on succeeding crops

Abstract

Glyphosate is an important herbicide for the control of weeds and volunteer crops in production systems with conservation tillage or direct drilling. For a feasible timing of the glyphosate application it is essential that the following crops are not aggrieved by soil uptake of glyphosate. In field trials over several years it was confirmed that a usual application with 1800 g/ha glyphosate poses no risk for the growth of subsequent corn or winter wheat. Low yields could be caused by different soil management techniques such as conservation tillage or direct drilling and the preceding crops. Treatments with a dosage of 1800 – 7200 g/ha glyphosate with a time lag of 23 – 10 day before mulch-sowing, resp. 1 day after direct drilling had no influence on the growth and yield of following corn and winter wheat. Based on the results of these field trials it can be confirmed that glyphosate is a save herbicide for weed control in production systems with conservation tillage or direct drilling.

Keywords

• Bodenwirkung
• Direktsaat
• Herbizid
• Kulturverträglichkeit
• Mais
• Mulchsaat
• Unkrautbekämpfung
• Winterweizen
• conservation tillage
• corn
• direct drilling
• herbicide
• maize
• phytotoxicity
• soil activity
• weed control
• winter wheat