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科学合理的施药技术对提高药效与减少用药量至关重要。2009年,氯虫·噻虫嗪防治水稻稻纵卷叶螟、二化螟的田间试验结果表明,40%氯虫·噻虫嗪水分散粒剂能有效防控以上2种虫害且持效性好。同一剂量下,药后7天的防效受喷头与用水量的影响较大,药后14天喷雾器、用水量显著制约药效,药后21天各因素对防效影响无规律性。同一药械(喷雾器类型、喷头型号)下,用水量、剂量和助剂对该药剂防治上述水稻螟虫的作用依次递减。
Scientific and reasonable application of drug technology to improve efficacy and reduce the dosage is essential. In 2009, the results of field trials on the prevention and control of rice leaf roller and striped stem borer by chlordomosis and thiamethoxam showed that the 40% chlorantraniliproxen water dispersible granules could effectively prevent and control the above pests and their persistence it is good. Under the same dose, the anti-efficacy effect of 7 days after spraying was greatly affected by the nozzle and the water consumption. After 14 days of spraying, the sprayer and the water consumption significantly restricted the efficacy. After 21 days of treatment, each factor had no regularity on the prevention effect. The same drug (sprayer type, nozzle model), the amount of water, dosage and additives on the efficacy of the agent to control the rice stem borer in descending order.