I. Definition and Chemical Nature of Agricultural Organosilicon
Agricultural organosilicon is a polyether-modified special organosilicon surfactant with ethoxylated trisiloxane as its main component. It appears as a colorless to light amber transparent oily liquid with a viscosity of 20–65 cs and a density of 1.00–1.05. Its molecular structure consists of a silicon-oxygen bond (Si-O-Si) main chain and organic group side chains, combining the stability of inorganic silicon with the flexibility of organic matter. This unique structure results in a surface tension as low as 21.0–24.0 mN/m, only 1/3 that of water, allowing it to quickly wet plant leaves and the surface of pests, forming a uniform covering layer.

II. Core Functions and Application Scenarios of Agricultural Organosilicon
Enhancing Efficiency and Reducing Dosage, Improving Pesticide Utilization
Traditional pesticide spraying only allows 20%–30% of the pesticide solution to adhere to the crop surface, while adding agricultural organosilicon increases the pesticide coverage area by 300%–500%. For example, when controlling rice leaf rollers, adding 0.05% organosilicon can reduce water consumption per acre from 45 kg to 15 kg while maintaining insecticidal efficacy, achieving a water-saving rate of 67%.
Superior Penetration, Breaking Through Protective Barriers
Agricultural organosilicon can penetrate the waxy layer of plants and the epidermis of pests, promoting rapid absorption of systemic pesticides. When controlling diamondback moth, the pesticide solution can penetrate the thin epidermis of leaves, increasing pest mortality by 40%. For cabbage leaves with a thicker waxy layer, organosilicon increases the pesticide coverage from 30% to 95%.
Resistant to Rain Washout, Extended Effectiveness
Pesticide solutions treated with agricultural organosilicon form a dense film, significantly enhancing resistance to rain washout. After application during the rainy season, repeated spraying is unnecessary, extending the effective period by 5-7 days and reducing pesticide usage by 30%-50%.
Widely Compatible, Adaptable to Diverse Agrochemicals
Agricultural organosilicon can be used in combination with insecticides, fungicides, herbicides, foliar fertilizers, plant growth regulators, etc. For example, when mixed with herbicides, it can enhance weed control; when combined with foliar fertilizers, it can promote nutrient absorption and increase crop yield by 8%-15%.