Effects of Polyacrylamide on Establishment and Growth of Crested Wheatgrass Seedlings and Sagebrush Tubelings

Document Type

Article

Journal/Book Title/Conference

Proceedings Ecology and Management of Annual Rangelands, USDA Forest Service General Technical Report INT-GTR-313

Publication Date

1994

Abstract

Experiments employing two forms (cross-linked and noncross-linked) of polyacrylamide (PAM) at 0.2 percent, mixed with a silt loam Xerollic Calciorthid top soil, were performed in 1991. Larger cracks and lower mean penetrometer resistance occurred in the two PAM treatments compared to the untreated control. The two kinds of PAM failed to produce significant differences in soil moisture or crested wheatgrass (Agropyron desertorum) germination. Oneyear-old tubelings of big sagebrush (Artemisia tridentata) did not grow significantly faster or flower significantly sooner or more abundantly than the untreated controls.

First Page

275

Last Page

279

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