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随着龙山县百合产业的发展壮大,蛴螬在百合上危害逐年加重。为减轻该虫在百合上的危害,开展了百合—晚稻—百合、百合—中稻—百合、百合—水浸泡—百合等3种水旱轮作方式对龙山百合蛴螬发生为害的防控研究。结果表明,百合—晚稻—百合、百合—水浸泡—百合、百合—中稻—百合等3种水旱轮作方式百合增产明显,其中百合—中稻—百合为百合主产品三年二熟制的轮作方式,当年产量比连作百合高,但总产低于连作百合。百合—晚稻—百合、百合—水浸泡—百合的轮作方式没有蛴螬危害,百合—晚稻—百合轮作的方式提高了土地的复种指数,增加了当年的经济收益,百合—中稻—百合轮作方式虽然蛴螬危害很轻微,但是没有提高当年的土地利用率,另中稻的经济价值明显低于百合。由此表明,最佳的水旱轮作模式为百合—晚稻—百合。
With the development and growth of lily industry in Longshan County, the catfish is harmed year by year on the lily. In order to reduce the harm of the insects on lily, three kinds of water and drought rotation modes of lily - late rice - lily, lily - medium rice - lily, lily - water soak - lily were studied to prevent and control Longshan lily. The results showed that Lily - Lily - Lily - water soak - Lily, Lily - Lily - lily and other three kinds of flood and drought rotation Lily yield significantly, including Lily - Lily - lily of the main products of three years of lily twins rotation , When the production is higher than the continuous lily, but the total output is lower than the continuous lily. Lily - late rice - lily, lily - water soaking - Lily rotation mode without 蛴 螬 harm, lily - late rice - lily round way to improve the crop’s multiple seeding index, increase the year’s economic benefits, lily - medium rice - lily rotation mode although 蛴 螬Harm is very slight, but did not improve the land utilization of the year, the other the economic value of rice is significantly lower than the lily. This shows that the best pattern of rotation and drought in Lily - late rice - lily.