Farm-scale evaluation of herbicide band application integrated with inter-row mechanical weeding for maize production in four European regions

Vasileiadis, V. P. and van Dijk, W. and Verschwele, A. and Holb, Imre and Vámos, A. (2016) Farm-scale evaluation of herbicide band application integrated with inter-row mechanical weeding for maize production in four European regions. WEED RESEARCH, 56 (4). pp. 313-322. ISSN 0043-1737

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Abstract

To promote integrated weed management (IWM) implementation in Europe, robust evidence on the sus- tainability of such tools and strategies is needed to motivate their adoption by stakeholders. This can only be achieved through assessing and validating them at real farm scale and using existing farm equipment, under diverse climatic and soil conditions representa- tive of European agriculture. In 2013 and 2014, 12 on-farm experiments (i.e. real field conditions on com- mercial farms, with natural weed flora) were conducted in four important European grain maize-producing regions comparing the efficacy of herbicide band appli- cation integrated with inter-row mechanical weeding as a potential IWM tool with the conventional broadcast herbicide application (CON) used by the farms. The IWM tools tested were as follows: (i) early post-emer- gence herbicide band application combined with hoeing, followed by a second hoeing in southern Ger- many, (ii) early post-emergence herbicide band appli- cation followed by hoeing in eastern Hungary and central Slovenia and (iii) pre-emergence herbicide band application followed by hoeing in northern Italy. Her- bicide band application integrated with hoeing pro- vided good and partial weed control along and between maize rows respectively. No significant yield differences were detected between IWM and CON. IWM greatly reduced herbicide input and was eco- nomically sustainable over the duration of this study with no significant difference in gross margin com- pared with CON in all cases. This IWM tool could therefore be considered for implementation in Euro- pean maize systems.

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