English Writing

Source 1.

Herbicides have therefore facilitated the simplification of cropping systems, the explanation of monocultures and the adoption of reduced tillage systems (Buhler et al., 2000).

Source 2.

However, the use of herbicides as the sole weed management tool is seriously being questioned by farmers because of herbicide costs and technical problems related to resistance of weed populations to one or several herbicides (Richeter et al., 2002; Mace et al., 2007).

Source 3.

In addition, there is an increasing concern about the environmental impacts of herbicide residues into surface- and ground-water.

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