Performance Compounds of piperizophos and penein are used as selective broad-spectrum herbicides for rice fields. Other names include Weiluosheng, Paocaojing, and Peibujing Mixture. Piperazine is moderately toxic, non-irritating to the skin and slightly irritating to the eyes. E-grass is low-toxic. No irritation to the skin, mild irritation to the eyes.
The use of Weiluosheng has a good control effect against hardwood weeds such as weeds and other broad-leaved grasses, and it can also kill grasses before the three-leaf stage. In addition, it is also effective for Alias ​​sedges, Euphorbia gracilis, Monochoria vaginalis, Arthrobacter sp. Generally, after the rice is transplanted, weeds and other annual weeds are used in the 3-leaf period, when the eye-weeds and sedges are released. In Northeast, North China, Yunnan and other places, generally 10-15 days after transplanting, 25% to 30% of Weilusheng EC is processed per hectare after returning green rice. Single rice in the south of the Yangtze River, early rice in the double-cropping paddy fields of Huazhong, East China, and South China mountains should be treated with 1875 ml/ha for 8 to 10 days after the planting. Late rice in the double-cropping rice region can be treated with 1500 ml/ha 5 to 8 days after the planting. The general use of soil (sand) is 3000~3750 kg/ha. Keep water for 5~7 days.
The use of Weiluosheng has a good control effect against hardwood weeds such as weeds and other broad-leaved grasses, and it can also kill grasses before the three-leaf stage. In addition, it is also effective for Alias ​​sedges, Euphorbia gracilis, Monochoria vaginalis, Arthrobacter sp. Generally, after the rice is transplanted, weeds and other annual weeds are used in the 3-leaf period, when the eye-weeds and sedges are released. In Northeast, North China, Yunnan and other places, generally 10-15 days after transplanting, 25% to 30% of Weilusheng EC is processed per hectare after returning green rice. Single rice in the south of the Yangtze River, early rice in the double-cropping paddy fields of Huazhong, East China, and South China mountains should be treated with 1875 ml/ha for 8 to 10 days after the planting. Late rice in the double-cropping rice region can be treated with 1500 ml/ha 5 to 8 days after the planting. The general use of soil (sand) is 3000~3750 kg/ha. Keep water for 5~7 days.
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