Atrazine 50% WP

Atrazine 50% WP

Atrazine 50% WP is one of India’s most trusted and cost-effective selective herbicides, widely used by maize and sugarcane farmers for decades. As a wettable powder formulation from the triazine chemical group, it is easy to mix, flexible in application timing, and delivers long-lasting residual weed control that covers the entire critical crop establishment phase with a single well-timed spray.

How Atrazine 50% WP Works

This herbicide works by inhibiting photosynthesis at Photosystem II (PSII) inside the weed’s cells. It is absorbed by both the roots and leaves of target weeds, then translocated upward through the xylem to growing points, leaves, and apical meristems. Once photosynthesis is blocked, the weed can no longer produce the energy it needs to survive, causing it to gradually starve, wilt, and die completely. Treated weeds show visible yellowing and browning within 7 to 14 days, with complete weed kill shortly after. Because maize and sugarcane plants can rapidly break down Atrazine in their own tissue, the crop remains completely safe while surrounding weeds are destroyed.

Why Farmers Choose This Herbicide

One of the standout qualities of Atrazine 50% WP is its dual-action flexibility — it can be applied pre-emergence within 0 to 3 days of sowing on moist soil before weeds have emerged, or as an early post-emergence spray when weeds are very young at the 2 to 3 leaf stage. This wider application window gives farmers more flexibility compared to purely pre-emergence herbicides that must be applied exactly on time for results.

Atrazine 50% WP is effective against a very broad range of weeds including Echinochloa colona (Sawan), Digitaria sanguinalis, Eleusine indica, and Dactyloctenium aegyptium among grasses, and Amaranthus viridis (Chaulai), Chenopodium album (Bathua), Trianthema portulacastrum (Pathari), Portulaca oleracea (Lunia), Parthenium, Xanthium strumarium, and Euphorbia species among broadleaf weeds. According to ICAR research, effective pre-emergence weed control can save up to 35% of crop yield losses that would otherwise occur from unmanaged weed competition during the critical early growth stage. A single application gives 45 to 60 days of residual protection — often covering the entire period from germination through early crop canopy closure — replacing multiple manual weeding rounds and significantly reducing labour costs per acre.

Key Benefits

• Controls 25+ annual grasses and broadleaf weeds in one spray
• Dual application window — pre-emergence and early post-emergence
• 45 to 60 days residual weed-free protection from single application
• Safe for maize and sugarcane — crop breaks down Atrazine rapidly
• Effective against resistant weed populations
• Cost-effective — low price per acre compared to other herbicides
• Can be tank-mixed with Pendimethalin for stronger pre-emergence control

Why Crop Nutrition Matters Alongside Weed Control

After clearing weeds and giving the crop full access to soil nutrients, supporting crop growth with the right inputs helps maximize that advantage. Products like Humic Acid 98% Flakes help improve soil health and root development during early crop establishment, while Power PGR Liquid supports better flowering and grain or cane development as the crop grows toward harvest.

Safety Tips & Precautions

• Only approved for maize, sugarcane, sorghum, and non-crop areas — do not use on cotton, soybean, pulses, wheat, or vegetables as it will cause severe crop damage
• Atrazine has a long soil residual life of 3 to 6 months — avoid planting sensitive crops like soybean, mustard, pulses, or vegetables for at least 3 to 6 months after application
• Apply within 0 to 3 days of sowing on moist soil for pre-emergence; spray only on young 2 to 3 leaf stage weeds for early post-emergence use
• Wear gloves, mask, and protective clothing while mixing and spraying
• Avoid spray drift onto water bodies or neighbouring sensitive crops
• Wash hands and skin thoroughly after use; keep away from children and animals

Storage Instructions

Store Atrazine 50% WP in a cool, dry place away from direct sunlight and moisture. Keep tightly sealed in the original container and out of reach of children and animals.

Learn more about Atrazine – Wikipedia