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稗草是旱种稻田的主要草害。在新稻区的旱种稻田采用一般人工或化学除草方法易达到水稻生产的要求。过去在水稻田推广使用的25%除草醚可湿性粉剂、40%除草醚乳粉或35%除草醚乳油都能收到一定的防除稗草的效果。但是,除草醚在水中的溶解度很小(约1ppm),施用于旱种稻田在喷到土表后,药粒分散不均匀(特别是加工质量不好的25%除草醚可湿性粉剂,粉粒粗、湿润性和分散性差,又容易在稀释液中沉凝),在水稻播种后喷药难以形成较理想的药土
Barnyardgrass is the main weed of dry-farming paddy fields. In dry cultivation paddy fields in the new rice area, the general artificial or chemical weeding method is easy to achieve the requirements of rice production. In the past, 25% of weedicide WP, 40% of weeding ether milk powder or 35% of weedicide EC promoted its use in paddy fields. However, the weep ethers have very low solubility in water (about 1 ppm) and are not uniformly dispersed after being applied to dry land paddy soil (particularly, 25% of weeding-treated WP, wettable powder, Rough, poor wettability and dispersibility, but also easy to coagulate in the diluted solution), it is difficult to form the ideal medicinal soil after spraying the rice