A Review of the Impact of Weeds on Crop Growth: Mechanisms, Implications, and Management Strategies

Abstract

Weeds are a major constraint in agricultural production, interfering with crop growth through competition for resources, allelopathic interactions, and by serving as reservoirs for pests and pathogens. This review synthesizes findings from multiple studies to elucidate the various mechanisms by which weeds reduce crop productivity and discusses integrated management approaches to mitigate their adverse effects. The paper draws on more than 20 references from both peer‐reviewed articles and authoritative reviews, highlighting the need for sustainable weed management in modern cropping systems.