Metazachlor Drying

Metazachlor (chemical name: 2-chloro-N-(pyrazol-1-ylmethyl)acet-2',6'-xylidide) is a selective pre-emergent and early post-emergent herbicide widely used in agriculture, particularly in oilseed rape (canola), vegetables, and certain field crops. Common drying method: Flash Dryer

Metazachlor (chemical name: 2-chloro-N-(pyrazol-1-ylmethyl)acet-2',6'-xylidide) is a selective pre-emergent and early post-emergent herbicide widely used in agriculture, particularly in oilseed rape (canola), vegetables, and certain field crops. It belongs to the chloroacetamide class of herbicides and primarily targets annual grasses and broadleaf weeds by disrupting growth processes, ultimately leading to plant desiccation and death—a phenomenon often referred to as "Metazachlor drying."

Mode of Action
Metazachlor inhibits fatty acid synthesis in susceptible plants by targeting the enzyme very-long-chain fatty acid (VLCFA) elongase. This disruption:

Impairs Cell Membrane Formation: Prevents the synthesis of lipids critical for cell membrane structure, causing cellular leakage.

Stops Seedling Growth: Arrests root and shoot development in germinating weeds.

Induces Dehydration: Damaged membranes lead to uncontrolled water loss, resulting in visible wilting and drying of plant tissues.

Common drying method:

Flash Dryer :
  High-Efficiency Drying Mechanism: XSG Series Spin Flash Dryer employs a tangential air inlet and a high-speed stirrer to create a powerful rotating wind field. This ensures efficient heat transfer and uniform drying of paste, cake, and slurry materials.
Advanced Material Processing: The equipment processes raw materials through a combination of cutting, shearing, blowing, floating, and rotating actions, transforming them into granulated form. This enhances material separation and strengthens the heating exchange process.

Application Features
Target Weeds: Effective against Alopecurus myosuroides (black-grass), Chenopodium spp. (goosefoot), and Galium aparine (cleavers).

Selectivity: Safe for oilseed rape and select crops when applied correctly, due to metabolic detoxification in tolerant species.

Soil Activity: Primarily absorbed through roots and shoots, with residual activity providing prolonged weed control.

Usage Guidelines
Timing: Optimal application is pre-emergence or early post-emergence of weeds.

Soil Conditions: Works best in moist soils; incorporation by irrigation or rainfall enhances efficacy.

Resistance Risk: Moderate risk of weed resistance; integrate with herbicides of alternative modes of action (e.g., ALS inhibitors).

Environmental and Safety Profile
Persistence: Moderate soil half-life (20–60 days), depending on microbial activity and temperature.

Toxicity: Low acute toxicity to mammals (rat oral LD₅₀ > 2,000 mg/kg) but toxic to aquatic organisms; avoid contamination of water bodies.

Ecological Impact: Degrades to non-toxic metabolites, minimizing long-term soil residue.