Abstract
Rice is farmed as a dry-seeded upland, low-land, puddle-seeded,
transplanted, and deep-water paddy crop. More than 350 weed species from 150 genera
and 60 plant families have been recorded. The chapter provides a comprehensive
overview of the botanical characteristics and ecological impact of the various species
of plants commonly referred to as weeds (grasses, sedges, broad leaf, ferns, and algal
weeds) that are found in rice fields. It also elucidates the diverse methodologies
employed in the management of weeds, encompassing preventive measures, cultural
practices, mechanical techniques, and biological and chemical interventions. The
prudent integration of these methodologies is imperative for achieving cost-efficient
and environmentally viable weed control in rice cultivation.