Maixi is a suspension containing 58 g/L of difluoro-oxazolidine, with 33 g/L azosulfuron and 25 g/L diflufenacil. This broad-spectrum herbicide is specifically designed to control a wide range of broadleaf weeds in wheat fields, including cleavers, mallow, chickweed, cardamine, shepherd's purse, wild radish, and rape. It also shows effective control over broadleaf weeds such as wild mustard and other cruciferous species. Maixi is particularly effective against *Zea mays* (corn), though it’s more commonly used for grassy and broadleaf weeds in cereals.
After application, sensitive weeds typically stop growing within a few hours. Visible symptoms like yellowing, reddening, or browning may appear within 10 to 15 days, and complete weed death usually occurs within about 30 days. The product remains stable even at low temperatures, such as 2°C, making it suitable for use during cooler periods. It can be applied throughout a wide window in the wheat growth cycle and is effective on taller weeds, including those with plant heights above 5 cm.
Maixi is especially effective on cruciferous weeds like wild rapeseed, amaranth, and barnyard grass that have entered the flowering stage. Its high efficacy allows for an extended application period in wheat fields, generally from late November to late January. There is no antagonistic interaction between Maixi and other herbicides like Hummer or Isoprolong, allowing for combined applications if needed.
According to the China Pesticide Network, Maixi is easily broken down by soil microorganisms and does not accumulate significantly in the soil. It is safe for wheat, barley, and sorghum when used according to recommended dosages. However, the active ingredient oxasulfuron has a longer residual effect in the soil, with photolysis taking up to three months. Therefore, it should not be used in crops such as cotton, sugar beets, rapeseed, sunflowers, sorghum, or tomatoes due to potential carryover issues.
For wheat fields, Maixi is most effective when applied during the early stages of weed growth—typically when weeds have 2 to 6 leaves. The recommended dosage is 10 grams per acre, mixed with 30–45 kg of water. If grass weeds are also present, you can add 10 ml of glufosinate per mu, along with 50 ml of scorpion or 100–150 grams of isoproturon. Maixi is available as a suspension concentrate and requires a second dilution before application to ensure proper mixing and uniform distribution.
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