Answer:
increase in the number of plants
Explanation:
Increasing plant numbers may cause competition between plants for sunlight, water and soil nutrients. As we know these resources are limited, plants don't have them all the time, so when a plant population increases, they tend to compete for resources.
Plant competition is an important process in both natural communities and agricultural environments. In agricultural systems, such competition can be seen by increasing the number of plants through weeds. The vegetative impact of weeds on agroecosystems is considered competition if there is a reduction in the amount of resources available for the crop and, in this context, root development influences plant competitiveness and survival.
