The effect of polyacrylamide on grass emergence in south central New Mexico

TitleThe effect of polyacrylamide on grass emergence in south central New Mexico
Publication TypeJournal Article
Year of Publication1992
AuthorsRubio H.O, Wood M.K, Cardenas M, Buchanan B.A
JournalJournal of Range Management
Date Published1992
Call Number00621
Keywordsarticle, articles, grass emergence, polyacrylamide, journal, journals, polyacrylamide, seeding,soil conditioner, soil conditioner, grass emergence, soil conditioner, polyacrylamide
AbstractSeeding rangeland is a challenge for rangeland scientist, especially on those soils with tendency to crusting. Although some information is available on how soil conditioners affect emergence of certain comestible crops, little is known about the effect of synthetic organic matter on grass emergence. We examined the effect of polyacrylamide, a soil conditioner, on seedling emergence of blue panicgrass (Panicum antidotale Retz.), King Ranch bluestem (Bothriochloa ischaemum [L.] Keng), sideoats grama (Bouteloua curtipendula [Michx.] Torr.), plains bristlegrass (Setaria macrostachya H.B.K.), and 'salado' alkali sacaton (Sporobolus airoides [Torr.] Torr.) under field conditions. Emergence of blue panicgrass and sideoats grama was increased with polyacrylamide applications, even at the lowest concentrations (10 kg ha-1) during summer 1987. No emergence response to polyacrylamide applications was found for King Ranch bluestem, and plains bristlegrass did not emerge in any experimental plots during summer 1987. During summer 1988, blue panicgrass and sideoats grama emergence was again increased with polyacrylamide applications. Emergence of 'salado' alkali sacaton and King Ranch bluestem was unaffected by polyacrylamide applications. Soil conditioners may be a feasible alternative for seeding some rangeland in areas where crusting is a problem.