论文部分内容阅读
应用特丁磷、地虫磷、灭克磷、奎硫磷、辛硫磷、乐斯本、克线丹、甲基异柳磷等8种杀虫剂,结合甘蔗大培土(7月份)施用,防治齿缘鳃金龟(即黄褐色蔗龟)有显著或极显著的效果。残存幼虫数减少66.7~94.9%,最好是奎硫磷,但与其它药剂无显著差异(除辛硫磷外)。枯梢茎减少35~72.4%,最好是灭克磷、乐斯本,但与其它药剂之间无显著差异(除辛硫磷外)。产量增加29.9~87.5%,增产最多的是特丁磷、地虫磷,但与奎硫磷、灭克磷、克线丹和乐斯本之间无显著差异。经统计分析,幼虫数与枯捎数之间存在着非常显著的关系,r=0.861 t_0>t_(0.01)幼虫数、枯梢数与产量之间存在着显著或极显著的负相关关系,相关系数分别为r=-0.759(t_0>t_(0.05))和r=-0.811(t_0>t_(0.01))。
Eight kinds of insecticides, such as terbuthylaphos, termitomycin, fenpro, quetiapine, phoxim, lypsizone, cristobanil and methyl isofenphosin, were applied in combination with large soil of sugarcane (July) , Prevention and treatment of gill beetles (ie yellow brown sugar cane turtle) have significant or very significant effect. The number of remaining larvae decreased by 66.7-94.9%, preferably quetiapine, but no significant difference with other agents (except phoxim). Shoot stems reduced by 35 to 72.4%, preferably fenpropathrin, Lorsby, but no significant difference with other agents (except phoxim). Yield increased 29.9 ~ 87.5%, the largest increase is the production of terbuthylaphos, earthworm phosphorus, but with quetiapine, grams of grams of phosphorus, grams of line Dan and Ressman no significant difference between. According to statistical analysis, there is a significant correlation between the number of larvae and the number of dead leaves, r = 0.861 t_0> t_ (0.01) There are significant or extremely significant negative correlations between larval number, shoot number and yield The coefficients were r = -0.759 (t_0> t_ (0.05)) and r = -0.811 (t_0> t_ (0.01) respectively).