摘要
【目的】通过调查宜州市水稻稻曲病大发生流行原因,为防控水稻稻曲病提供参考依据。【方法】实地调查宜州市水稻稻曲病发生的现状及田间防治方法,分析造成稻曲病大发生原因。【结果】水稻孕穗后期及抽穗杨花期间多雨且气温适宜,感病品种的大面积种植,是造成水稻稻曲病近年来大发生的主要原因;防治策略不当,防治时间不及时导致稻曲病大发生流行;【对策】选择抗病品种,合理密植、科学施肥,选择防效好的药剂,在水稻破口期前5~7天第一次用药,在水稻破口即抽穗5~10%时,进行第二次药剂防治,能有效防治水稻稻曲病。
[ Objective ] It aims to shed light on preventing and controlling Rice False Smut through investigating causes of the outbreak of Rice False Smut in Yizhou. [ Method ] Analysis is conducted on causes of the outbreak of Rice False Smut, based on the field survey of current situation and field control in Yizhou. [ Result] The major cause of the outbreak of Rice False Smut in recent years is the large-scale cultivation of susceptible varieties during the late booting stage and the heading stage of rice, when it is often rainy with appropriate temperature;inappropriate strategy and delayed prevention ＆ control cause the outbreak of Rice False Smut. [ Countermeasure ] The following actions should be taken：select disease- resistant varieties, conduct rational close planting with scientific fertilization, and choose chemicals of good quality;apply chemicals 5- 7 days before the rupturing stage for the first time and for the second time during the rupturing stage （ when heading 5 - 10%）. By doing so, Rice False Smut can be effectively prevented and controlled.
出处
《广西农学报》
2017年第5期26-28,共3页
Journal of Guangxi Agriculture
基金
2017广西农业重点科技项目
关键词
水稻
稻曲痛
病症
病因
防治对策
rice
False Smut
symptoms
causes
countermeasures
作者简介
韦正军，男，1969年生，广西宜州人，农艺师，主要从事农业技术推广_丁作。
