除草剂对不同栽培方式水稻药害的评价

选取酰胺类、磺酰脲类、硫代氨基甲酸酯类、杂环类、脲类、苯氧羧酸类等常用化学除草剂,以超常规剂量用移液和喷雾两种方式对抛栽和直播籼、粳稻进行药剂试验。研究结果明确了各种除草剂对水稻的药害症状;籼粳稻对各药剂的敏感差异;以及清水冲洗、搁田、施肥等措施对某些除草剂品种造成的水稻药害的缓解作用。

Evaluation on Herbicide Injury to Rice in Various Cultivations

Six kinds of commonly used as chemical herbicides including amides, thiocarbamates, sulfonylureas ,heterocyclics,ureas and phenoxy carboxylic acids were applied to the transplant rice seedling at over dosage by throwing anddirected-seedling Indica rice and Japonica rice by two methods of moving liquid treatment and mist spray. The symptoms inrice plants caused by these herbicides were described and thedifference of susceptibilities to the herbicides between Indica rice and Japonica rice were discussed. Results also showed that by fertilizer application, the injury in rice plants caused bysome herbicides could be reduced.