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本研究在调查菠萝园杂草种类和发生特点的基础上进行化学防除技术研究。明确了菠萝园主要杂草有日本草、胜红蓟、马唐、积雪草、耳草、雀稗、铺地黍、铜锤草、香附子和白茅等。药剂试验结果表明,每亩用25%敌草隆0.4～0.5公斤、50%莠去津0.15～0.2公斤或25%敌草隆0.4公斤+12.5%拿捕净0.1～0.2公斤进行茎叶喷雾和土壤封闭处理,防除杂草效果可达95%以上,对菠萝安全。大面积推广应用能提高劳动生产率,可取得显著的经济效果。
In this study, the pineapple garden weed species and characteristics of the basis of chemical control technology research. Clear pineapple main weeds are Japanese grass, red thistle, crabgrass, Centella, ear grass, Paspalum, Millet Miller, copper hammer grass, incense monkshood and white grass and so on. The results of the chemical tests showed that spraying 0.4-0.5 kg of diuron with 25%, 0.15-0.2 kg of 50% atrazine or 0.4 kg + 25% of diuron at a rate of 0.1-0.2 kg per mu for leaf spraying and soil Closed treatment, weed control effect of up to 95%, pineapple safe. Large-scale promotion and application of labor productivity can be achieved significant economic results.