Abstract

In conventional agriculture, we supplied agrochemicals consistently across production areas in order to control weeds, which led to excesses in some areas and insufficient intervention in others. One of the root causes of pollution is an excessive application of agrochemicals used in excess and persists in the soil, leached down into groundwater, and/or drain into bodies of surface water. Both the ecosystem and human health could be at risk by this circumstance. Since the 1960s, agrochemicals' buildup and longterm toxicity risks in food and water have been observed. Agrochemical contamination and pollution of soil, groundwater, and run-off can result in a variety of ailments, including nervous system disorders. As a result, enhanced management techniques that minimize the over-application of agrochemicals have emerged as an important domain of research. ‘Precision farming' is a possible approach for lowering chemical inputs. Precision farming, commonly referred to as site-specific farming, permits farmers to manage the field at a very precise spatial resolution and can hence boost the efficiency of farming. With the motive of applying control measures where and when they are required, a number of precisions weed management (PWM) methods are being developed to scout and detect weeds. We hypothesized in this review that Robotic technology and site-specific weed management are the measures will be effective in controlling weeds in the cropland, pastures, grasslands etc.,