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在许多情况下,特别是在田间工作时,因为时间短促或不能用恒温干燥箱,以重量法测定土壤水分有很大困难。这个困难最近已由Maiboroda氏提出的水浸法解决了。这个田间快速操作法的根据是,溼土壤的绝对干重可在水中称量而获得。我们测定了Wisconsin洲许多砂土和粘土的土样,充分证明了用水浸法和标准重量法所获得的结果差异不超过1％。 水浸法需要几个125毫升的三角瓶和几个1英寸长铜丝末端附一圆环状物。
In many cases, especially when working in the field, gravimetric methods to determine soil moisture can be very difficult due to the short time or the inability to use a thermostatic oven. This difficulty has recently been solved by the flooding method proposed by Maiboroda. The basis for this quick field operation is that the absolute dry weight of the wet soil can be obtained by weighing in water. We measured many samples of sand and clay from the Wisconsin continent, demonstrating that the difference between the water immersion method and the standard gravimetric method did not differ by more than 1%. The flooding method requires several 125 ml Erlenmeyer flasks and several 1 inch long copper wire ends attached to a ring.