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Author Archive

About Douglas Soldat, Ph.D.

Soldat is a turfgrass scientist at the University of Wisconsin-Madison.

Posts by Douglas Soldat, Ph.D.

A look at factors impacting tissue N content in creeping bentgrass Posted on 28 Mar 2024 in the Featured & From the Magazine & Research categories.

Researchers share findings from a study focusing on various influences on the tissue N content in creeping bentgrass. Read more»

A new index for sodicity risk assessment of irrigation water Posted on 22 May 2018 in the Featured & Research categories.

Golf courses with poor quality irrigation water must worry about sodium accumulation in soil. Sodium adsorption ratio (SAR) is the primary criterion of estimating sodium hazard of irrigation waters. However, Read more»

Soil testing under the microscope Posted on 19 Jun 2017 in the Research categories.

In the first chapter of the Soil Science Society of America’s 1990 book, “Soil Testing and Plant Analysis,” authors Peck and Soltanpour write that “Success or failure of soil testing Read more»

Sand greens and sodium Posted on 13 Nov 2015 in the Research categories.

Understanding base cations and hydraulic conductivity of sand root zones Irrigating turfgrass with water containing high concentrations of sodium can present significant agronomic challenges. Sodium promotes clay swelling and dispersion, Read more»