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以往稻田害虫调查,大都以栖息在水稻茎叶上害虫为主,故无稻虫土壤取样器要求。近几年由于稻象甲虫口上升,为害逐年加重,我站根据稻象甲在土壤中分布状况,自行设计了适于稻虫调查的水稻土壤取样器。经多次试验与改进,现已具有取土完整,取土深度可调,取土方便,结构合理,对稻苗伤害甚少等优点,一般有电焊、气焊设备的小加工场,均可自制,现将结构介绍如下:
Past pest survey rice, most of them habitat in rice stems and pests on the main, so no rice pest soil sampler requirements. In recent years due to the rise of the rice beetle population, pests increased year by year, I station according to the distribution of rice in the soil in the soil, designed for paddy soil survey paddy soil sampler. After many tests and improvements, now it has the advantages of complete soil acquisition, adjustable depth of soil acquisition, convenient soil acquisition, reasonable structure and little damage to rice seedlings. Generally, small processing plants for electric welding and gas welding equipment are all self-made Now the structure is introduced as follows: