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ARS Home » Plains Area » Mandan, North Dakota » Northern Great Plains Research Laboratory » Research » Publications at this Location » Publication #422767
Research Project: Transdisciplinary Research that Improves the Productivity and Sustainability of Northern Great Plains Agroecosystems and the Well-Being of the Communities They Serve

Location: Northern Great Plains Research Laboratory

Title: Data from: Soil pH and Exchangeable Cation Responses to Tillage and Fertilizer in Dryland Cropping Systems

Author
item REEVES, JUSTIN - Colorado State University
item Liebig, Mark

Submitted to: Ag Data Commons
Publication Type: Database / Dataset
Publication Acceptance Date: 2/5/2025
Publication Date: 2/5/2025
Citation: Reeves, J.L., Liebig, M.A. 2025. Data from: Soil pH and Exchangeable Cation Responses to Tillage and Fertilizer in Dryland Cropping Systems. Ag Data Commons. 1.

Interpretive Summary:

Technical Abstract: Long-term deployment of dryland cropping systems can alter soil chemical properties in ways that lead to lower soil fertility. Few long-term experiments have investigated cropping intensity, tillage, and nitrogen fertilization effects on soil chemical properties in the northern Great Plains. Near-surface (0-7.6 cm) soil chemistry data were evaluated from two cropping systems (continuous cropping and crop-fallow), each split by tillage (no-, minimum, and conventional) and nitrogen rate (no/low, medium, high) treatments for 16 years. The experiment was established in 1984 on the Area IV Soil Conservation Districts Cooperative Research Farm near Mandan, North Dakota USA. Soil cores were collected in 1983 (prior to establishment of treatments) and again in 1999 from the surface 7.6-cm depth near the middle of each experimental plot using a hydraulic probe. Samples were dried, mechanically ground, and analyzed within 6 wk of collection. Soil pH was measured in a 1:1 soil/water mixture (by mass) with an ion-selective glass electrode. Exchangeable cations (Ca, Mg, K, and Na) were estimated by atomic absorption spectrometry. Data may be used to better understand cropping, tillage, and nitrogen fertilization effects on soil pH and exchangeable cations under dryland conditions in a semiarid continental climate. Applicable USDA soil types include Temvik, Wilton, Grassna, Linton, Mandan, and Williams.