Pyroxasulfone 40% SC is a water-based suspension concentrate herbicide independently developed and produced by SIRO AGRI, specially designed for pre-emergence weed management in fruit orchards, corn, peanut and soybean fields. Targeting the VLCFA biosynthesis pathway of weeds, this product forms a uniform protective barrier in topsoil to suppress the germination of annual grass weeds and small-seeded broadleaf weeds with ultra-long residual activity. Compared with traditional herbicide formulations, the suspension concentrate features superior dispersion, low phytotoxicity and excellent rain resistance. This paper adopts FAQ structure to elaborate its unique functional advantages, superior raw material selection, advanced processing technology and core competitiveness of SIRO AGRI, providing systematic reference for global agricultural distributors and growers.
Different from conventional soil herbicides with short duration, Pyroxasulfone 40% SC interferes with very long chain fatty acid synthesis in weed seedlings, permanently stopping cell division and seedling growth. Its effective control period reaches 45 to 60 days, significantly reducing frequent re-spraying costs for farmers. The water-based suspension formula contains ultrafine grinding active particles, which can evenly permeate the topsoil layer after spraying to form a continuous drug film, effectively avoiding drug loss caused by light rainfall within 6 hours after application. The product maintains high safety to target crops including citrus, apple, corn and peanuts. It will not inhibit seedling rooting or cause leaf yellowing under standard dosage. Besides single use, it can be mixed with most common post-emergence herbicides to realize one-time full-spectrum weed control, greatly simplifying field operation procedures. Meanwhile, the formula adopts low-foam environmental auxiliaries, which will not block spray nozzles and is compatible with drip irrigation and ground spraying equipment.
For raw materials, SIRO exclusively adopts 98% high-purity pyroxasulfone technical material sourced from certified upstream manufacturers. Every batch of technical raw materials undergoes strict detection of heavy metal residues, insoluble impurities and effective content in GLP-standard laboratories, eliminating low-purity recycled materials that cause unstable efficacy. The chelating dispersants and suspending agents we select are imported food-grade auxiliaries, which effectively prevent product stratification and sedimentation during long-term storage under high temperature and low temperature environments. In terms of processing technology, SIRO applies multi-stage nano-grinding and constant-temperature closed synthesis production lines. The particle size of the finished suspension concentrate is controlled below 3 microns, far finer than the industry average level, which improves soil adsorption capacity and drug utilization rate by more than 28%. The full-automatic batching system avoids manual proportion errors, ensuring consistent active ingredient content in every batch of products. The whole production process meets international environmental protection standards, with no volatile organic solvent pollution.
First of all, SIRO AGRI is a top professional agrochemical formulation enterprise in China with more than 20 years of export experience, owning complete ICAMA registrations, patent reports and GLP test documents to support legal sales in the Middle East, Latin America and Southeast Asia markets. Secondly, we have a large-scale standardized production base with an annual output of 100,000 tons of agrochemical preparations, which can stably deliver bulk orders within the agreed cycle without supply delay risks. In addition, SIRO provides one-stop customized services, including independent packaging design, private label printing and targeted formula adjustment according to local soil and weed spectrum conditions. Our professional agronomy team offers free technical guidance on dosage, mixing schemes and application periods for global customers. Up to now, our pyroxasulfone series products have been exported to more than 35 countries, winning long-term cooperative recognition from numerous agricultural distributors for stable quality and thoughtful after-sales service.
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