The herbicide Nelson is a selective agent for controlling annual broadleaf and grass weeds in corn, sunflower, and potato crops. The active ingredient is prometryn at a concentration of 500 g/l; the product is available as a concentrate suspension and packaged in 20-liter barrels. Classified as Class III toxicity by the WHO, it is low-toxic to bees and fish, making it environmentally safe when used properly. Optimal application conditions include temperatures from +10°C to +25°C, moist and crumbly soil, and wind speed not exceeding 3-4 m/s. The working solution should be used within 24 hours of preparation, with application rates ranging from 200 to 400 liters per hectare.
Application of herbicide Nelson may occur prior to planting, during planting, or after planting, but prior to crop emergence. For corn, the dosage is 2-4 liters per hectare; for sunflower and potato, it is 3-4 liters per hectare. Special attention should be paid to soil conditions: it must be moist and have a crumbly structure. If there is a risk of drying out the topsoil layer after application, light or medium tillage is recommended. The herbicide is compatible with other soil-applied plant protection products, allowing its use in tank mixtures.
The mechanism of action of prometryn involves absorption by weed seedlings and roots, followed by accumulation in meristematic zones, which disrupts photosynthesis and leads to plant death. Nelson effectively controls a broad spectrum of weeds, including Veronica hederifolia, Galinsoga parviflora, burnet, common mustard, common ragwort, common chickweed, stinging nettle, white dead-nettle, black nightshade, pink sow-thistle, and others. Thanks to its prolonged protective effect lasting from 4 to 12 weeks, the product reduces the need for mechanical treatments, helps retain soil moisture and structure, positively affecting crop yield and quality.
