不同氮磷施用量对旅游景观草坪质量的影响

以旅游景观草坪早熟禾为试材,研究了不同氮磷施用量对坪用质量的影响,结果表明:施用氮磷肥可以提高草坪的分蘖密度,施肥量为41.90 kg/hm2时显著高于对照;草坪盖度在7、9、10月份41.90 kg/hm2处理最高,显著高于对照,6、8月份达到90%以上;7~10月份41.90 kg/hm2处理株高显著高于对照,7、8、10月37.71 kg/hm2处理与对照之间无显著差异;6~9月份41.90 kg/hm2处理总叶绿素含量最高,显著高于对照,37.71 kg/hm2处理与对照之间无显著差异;6~7月份41.90 kg/hm2处理叶片宽度显著高于对照,其余月份与对照之间无显著差异。综合分析认为,旅游景观草坪氮磷施用量以41.90 kg/hm2为宜。

Effect of Tourism Landscape turf Quality in Different Amount of Nitrogen and Phosphorus Fertilize

The test used tourism landscape turf quality Poa pratensis L. to study effect of turf quality in differ- ent amount of nitrogen and phosphorus fertilize. The results showed that ： application of nitrogen and phosphor- us fertilizer can improve the lawn tiller density when amount of 41.90 kg/hm^2 significantly higher than the control; 41.90 kg/hm^2 treatment coverage highest in July, September, October and significantly higher than the control and coverage reached more than 90% in June and August; July to October 41.90 kg/hm^2 treatment significantly higher than the control and 37.71 kg/hm^2 treatment have no significantly difference with the con- trol in July, August, October; 41.90 kg/hm^2 treatment total chlorophyll content highest and significantly high- er than the control, 37.71 kg/hm^2 treatment have no significantly difference with the control in June to Sep- tember; 41.90 kg/hm^2 treatment blade width was significantly higher than the control in June to July and other month have no significantly difference with the control. Comprehensive analysis that tourism landscape lawn nitrogen and phosphorus fertilize amount as 41.90 kg/hm^2 was best.