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Irrigation Frequency for Kentucky Bluegrass (Poa pratensis) Growth  

Lee, Sang-Kook (Research Institute for Basic Sciences, Hoseo University)
Publication Information
Asian Journal of Turfgrass Science / v.26, no.2, 2012 , pp. 123-128 More about this Journal
Abstract
Kentucky bluegrass (Poa pratensis) is most widely used in golf courses and athletic fields. Weakness of Kentucky bluegrass is shallow root zone and has weak tolerance to shade. One of the biggest disadvantages is high demand of water. Water content is important factor to maintain excellent color and quality of turfgrass. There are two irrigation methods which are 'deep and infrequent (DI)' and 'Light and frequent (LI)'. The objective of the study is to investigate Kentucky bluegrass growth treated by different irrigation frequency. Three irrigation frequency were made; no irrigation, every other day, and weekly. The same amount of water was used between every other day and weekly irrigation except no irrigation. No irrigation mean no artificial water supply and precipitation only. No irrigation treatment produced turfgrass quality lower than acceptable rating of six in July and August. Under the weather condition of 2011, no irrigation could not maintained acceptable turfgrass quality. No significant differences were found for Kentucky bluegrass quality between DI and LI.
Keywords
Deep and infrequent; Irrigation; Kentucky bluegrass; Light and frequent; Water;
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