CAS 111991-09-4 Nicosulfuron 80%WP Herbicide For Corn Field

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Nicosulfuron 80% WP is a post-emergent herbicide for corn fields characterized by strong systemic and translocated properties. After absorption by weeds, it interferes with the biosynthesis of essential life substances (specifically inhibiting acetolactate synthase to block the synthesis of branched-chain amino acids), ultimately leading to weed death. This formulation demonstrates effective control against annual gramineous weeds (including Echinochloa crus-galli, Digitaria sanguinalis, and Eleusine indica) and partial broadleaf weeds (such as Amaranthus retroflexus and Portulaca oleracea) in corn cultivation.

Application Parameters

Growth Stage: Apply during corn's 3-5 leaf stage and weeds' 2-5 leaf stage via foliar spray.

Dosage: 30-40 liters of water per mu (Chinese acre) for dilution.

Preparation Method

Dissolve the product into a mother liquor first, stir thoroughly, then mix with water in a sprayer. Ensure uniform coverage on weed surfaces without overlapping or missing spots.

Environmental Conditions

Temperature: Optimal range is 20–30°C. For summer corn, apply after 4 PM to avoid high-temperature evaporation and photolysis.

Weather Restrictions: Avoid application during strong winds or expected rainfall to prevent drift and reduced efficacy.

Usage Frequency

Limit to one application per growing season to minimize resistance risks.

1‌.Usage Frequency and Crop Rotation‌

Apply ‌once per growing season‌.

A ‌minimum interval of 10 months‌ is required before planting subsequent crops such as rapeseed, cabbage, or radish.

2.Restrictions on Organophosphorus Pesticides‌

Avoid using organophosphorus pesticides ‌7 days before or after application‌ to prevent antagonistic interactions.

3‌.Preceding Crop Herbicide Residue Risks‌

Do not use in corn fields where ‌long-residual herbicides‌ (e.g., metsulfuron-methyl, chlorsulfuron) were applied in previous wheat crops.

Contraindicated for ‌intercropped or mixed-cropped corn fields‌ with broadleaf plants.

4‌.Spraying Requirements‌

Ensure ‌adequate dilution volume‌ (30–40 L/mu) to achieve uniform coverage on weed surfaces, enhancing efficacy and reducing phytotoxicity risks.

5‌.Ecological and Environmental Precautions‌

‌Toxic to bees, silkworms, and aquatic organisms‌:

Avoid application near ‌blooming plants, apiaries, silkworm farms, or water bodies‌.

Prohibit wastewater discharge into rivers or ponds; dispose of residues properly.

6‌.Personal Protective Equipment (PPE)‌

Wear ‌long sleeves, masks, and goggles‌ during application.

Refrain from eating, drinking, or smoking while handling the product.

Wash hands and face ‌immediately after application‌6.

7‌.Special Populations‌

‌Pregnant or breastfeeding women‌ must avoid contact with the product.

8‌.Equipment Cleaning‌

Thoroughly rinse ‌sprayers, nozzles, and hoses‌ post-use to prevent cross-contamination.

9‌.Intercropping Restrictions‌

‌Prohibited in corn fields intercropped with other crops‌ (e.g., vegetables, legumes).

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The packages should be stored in a dry, cool, well-ventilated and rainproof place, away from fire sources or heat sources. Keep out of reach of children and lock up. Do not store or transport together with food, beverages, feed, grains or other commodities. Avoid contact with skin and eyes. Prevent inhalation through the mouth and nose.

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