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Studies on Nitrogen Application Strategies on Turf Characters of Poa pratensis L. in Salt Lick and Alkaline Soil in Daqing County

LI Guo-liang1,GUO Jun2,DU Guang-ming1,LIU Xiang-ping1(1.Faculty of Animal Science and Veterinary Medicine, Heilongjiang August First Agricultural University, Daqing, Heilongjiang 163319,China;2.Chuangye Group of Daqing Petroleum Administration Bureau,Daqing,Heilongjiang 163517,China)  
The effects of different nitrogen application quantity on the growth performance of cold-season turf grass kentucky bluegrass were studied in Daqing. The results showed that the effect of nitrogen on turf-grass texture was not significant. Compared with the comparison,it was a little higer.With the increase of nitrogen application quantity. The growth speed and height of turf grass were significant compared with the comparison.The growth speed and height of turf grass were highest under the treatment of 20 g/m2 and the density of turf was highest as well.The content of chlorophyll of Kentucky bluegrass was higher under the treatment of higher nitrogen application quantity.The colour and luster should be good.
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