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为了解不同耕作方式对麦红吸浆虫Sitodiplosis mosellana(Géhin)种群动态的影响,2010年和2011年,在中国科学院河北省栾城农业生态系统试验站不同耕作方式的小麦样地中,通过淘土、成虫网捕和剥穗等方法对麦红吸浆虫进行了调查研究。结果表明:两年取土筛检出的幼虫数量依次为秸秆还田免耕田>秸秆站立免耕田>秸秆还田旋耕田,但2011年网捕调查显示,秸秆还田旋耕田中的成虫数量高于另外两种样地。两年剥穗检查出的幼虫数量的排序与取土筛检出的幼虫数量的排序相反,依次为秸秆还田旋耕田>秸秆站立免耕田>秸秆还田免耕田。分析表明免耕有利于幼虫的越冬,但免耕田麦穗受害较轻。旋耕对幼虫越冬不利,但抽穗后受害较严重。在耕种方式是旋耕的情况下,漫灌可加重吸浆虫的危害。研究结果有助于进一步了解大范围耕作方式的变迁对麦红吸浆虫发生的影响。
In order to understand the effects of different tillage practices on the population dynamics of Sitodiplosis mosellana (Géhin) in China, in 2010 and 2011, Adult net catching and stripping methods such as Midazolam were investigated. The results showed that the number of larvae retrieved from soil sampling in two years were in the order of no-till straw> no-till straw> returning straw to cropland, but net harvest survey in 2011 showed that the amount of larvae The number of adults is higher than the other two plots. The order of the number of larvae detected in two years of stripping was the contrary to the sorting of the number of larvae detected by soil pick-up, followed by straw returning to soil rotation> straw standing to no-till soil> straw returning to no-till. Analysis showed that no-tillage is beneficial to the overwintering of larvae, but wheat ears in no-till field suffered less damage. Rotation on the larva overwinter negative, but worse after heading. In the case of tillage is rotary farming, flood irrigation can aggravate the harm of midge. The results will help to further understand the impact of large-scale farming changes on Midazolam.