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Acta Prataculturae Sinica ›› 2014, Vol. 23 ›› Issue (6): 136-141.DOI: 10.11686/cyxb20140617

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Effect of urea fertilizer on growth and performance of Cleistogenes songorica turfgrass

LI Xin-yong,WANG Yan-rong,JIA Cun-zhi   

  1. State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
  • Received:2013-02-26 Online:2014-12-20 Published:2014-12-20

Abstract: The effects of different urea application rates (0, 2, 5 and 8 g/m2) on turf color, plant height, leaf width, relative leaf water content, nitrogen content and green period of Cleistogenes songorica turfgrass were studied. Urea fertilizer promoted the growth rate of plants and leaves, increased N and relative leaf water content, improved turf color, enhanced turf quality and prolonged the green period significantly. Turf quality under 5 and 8 g/m2 treatments was significantly greater than that under 0 and 2 g/m2 treatments, and the main contributing factors were improved turf color during the growth period and extension of the green period for 18 d at least. Compared with the 0 g/m2 treatment, the 8 g/m2 treatment increased the cut grass 6 times, which more than doubled lawn management costs while the 5 g/m2 treatment only increased the cut grass 2 times, which would reduce costs of lawn management. Hence, the optimum rate of urea fertilizer was 5 g/m2 for this turfgrass species.

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