氮对园林景观草坪生长性状的影响

Effect of Nitrogen on Growth Characters of Garden Landscape Lawn

通过研究不同氮肥施用量对园林景观草坪生长的影响规律,以期为草坪养护中科学合理施用氮肥提供理论依据。试验在田间条件下,分2016和2017两个年度进行,设置4个处理,氮肥施用量分别为0kg/hm2(CK,N1)、52.40kg/hm2(N2)、62.90kg/hm2(N3)、73.40kg/hm2(N4),3次重复。结果表明:草坪基部叶加长生长N3处理最佳,9月份两个年度分别比对照提高了56.62%、68.13%,差异显著;基部叶宽度N3分别比对照提高了22.92%、37.42%,差异显著;植株鲜重N3比对照提高了254.87%、78.66%,差异显著;6月份,N3处理的植株含水量比对照提高了14.16%、1.28%。综合分析认为,N3处理对促进园林景观草坪生长效果最佳。

The test studied effect of different of nitrogen on growth characters of garden landscape lawn and that it was want to provide theoretical basis that was scientific and rational application of nitrogen fertilizer which in lawn maintenance. The test under field conditions and it is carried out in two years when in 2016 and2017,at the same times,it was set 4 treatment which the nitrogenous fertilizer application as 0 kg/hm^2（CK,N1）,52. 40 kg/hm^2（N2）,62. 90 kg/hm^2（N3）,73. 40 kg/hm^2（N4）,repeat 3 times. The results show that：the lawn basal leaf lengthening growth which N3 treatment was best and it was higher than control 56. 62%,68. 13% when in the two years in September and then it was have significant difference; the basal leaf width which N3 treatment was higher than control 22. 92%,37. 42% and then it was have significant difference; the N3 treatment which it is plant fresh weight was higher than control 254. 87%,78. 66% and then it was have significant difference; the N3 treatment plant water content was higher than control 14. 16%,1. 28% when in June. Comprehensive analysis that N3 treatment was best to promoting the growth of garden landscape turf.