Dry aggregate stability (DAS) is an important factor influencing soil wind erosion, dust emission and crop production. Historically and to the present, DAS has been determined using a horizontal- or vertical-plate crushing meter (Soil-Aggregate Crushing-Energy Meter, hereafter SACEM). The intent of this paper was to compare the performance of horizontal-plate SACEM with a commercial penetrometer (Mohr Digi-Test, hereafter MDT). The performance of both instruments was tested on aggregates collected from various soil types, crop rotations, soil amendments, and tillage systems across the inland Pacific Northwest United States (iPNW). Results indicated no consistently significant difference in DAS measured by the MDT and SACEM. However, there was evidence that SACEM under-estimated or MDT over-estimated DAS by 74 to 368% in measuring the stability of strong aggregates (DAS > 3 J kg⁻¹). Both instruments measured higher DAS for no-tillage summer fallow, winter wheat-summer fallow (WW-SF) rotations, and no green manure treatments compared with other tillage practices, oilseed rotations, and green manure treatments. The SACEM that has historically been used in measuring soil DAS can be replaced by the commercial penetrometer (MDT). Nonetheless, differences in the performance of instruments in measuring the stability of strong aggregates poses risks.

干骨料的稳定性（DAS）是影响土壤风蚀，扬尘和农作物产量的重要因素。从历史上到现在，DAS是使用水平或垂直板式破碎仪（土壤骨料破碎能仪，以下简称SACEM）确定的。本文的目的是将水平平板SACEM与商用渗透计（Mohr Digi-Test，以下称MDT）进行比较。在从美国西北太平洋内陆（iPNW）的各种土壤类型，作物轮作，土壤改良剂和耕作系统收集的骨料上测试了这两种仪器的性能。结果表明，通过MDT和SACEM测得的DAS没有一致的显着差异。然而，^-1）。与其他耕作方式，油料轮作和绿肥处理相比，这两种仪器在免耕夏季休耕，冬小麦-夏季休耕（WW-SF）轮作和无绿肥处理方面均测得较高的DAS。过去用于测量土壤DAS的SACEM可以用商用渗透仪（MDT）代替。尽管如此，仪器在测量强骨料稳定性方面的性能差异仍存在风险。