目前,国内采集水田土壤标本尚无一套较完善的取土钻。过去所用麻花钻,一遇到质地较粘重的土壤时,上层土壤会紧紧地粘附在麻花钻上,难以准确地采取某一深度的土壤;遇到质地松散的砂质土,麻花钻也无法使用。因此,我们设计一种能在渍水条件下采取土壤标本的土钻,称为水田取土器,今介绍如下。 At present, there is not a complete set of earth-boring drill for collecting soil samples from paddy field in China. In the past, when the twist drill was used, when the soil with the heavier texture was encountered, the upper soil adhered tightly to the twist drill and it was difficult to accurately take the soil at a certain depth. When encountering sandy soil with loose texture, the twist drill Can not be used. Therefore, we design a soil drill which can take soil samples under the condition of waterlogging, which is called paddy field earth grabber. Now we introduce the following.