硝酸钾配施发酵饼肥对景观草坪坪用质量的影响

Effect of Potassium Nitrate Combined with Fermented Cake Fertilizer on the Quality of Landscape Lawn

通过研究硝酸钾配施发酵饼肥对草地早熟禾草坪坪用质量影响的规律,可以为城市园林草坪养护的科学施肥提供理论依据。试验在城市环境条件下,设置对照(CK)、硝酸钾(K_(1))、硝酸钾+发酵饼肥(K_(2))、硝酸钾+腐殖酸复混肥(K_(3))4个处理,小区试验设计,3次重复。结果表明:6月,K_(1)处理分蘖密度、株高、叶长、叶绿素含量均显著高于CK、K_(2)和K_(3)处理;7-10月,K_(2)分蘖密度显著高于CK、K_(1)和K_(3),6-8月K_(1)与K_(3)均显著高于CK;6-10月,K_(2)处理盖度显著高于CK,6-7月和9-10月K_(2)显著高于K_(1);7-10月K_(2)株高和叶长均显著高于CK,8月和10月K_(2)显著高于K_(1);7月、8月和10月,K_(2)处理叶宽显著高于对照;7-10月,K_(2)处理叶绿素含量和植株鲜重均显著高于CK,K_(2)显著高于K_(3)。综合分析认为,在现有施肥量基础上硝酸钾与发酵饼肥配合施用有利于显著提高草地早熟禾草坪坪用质量。

The effect of potassium nitrate combined with fermented cake fertilizer on the quality of kentucky bluegrass have studied,it can provide a theoretical basis for scientific fertilization in urban garden lawn maintenance.This test was set up under urban environment conditions,it was including control(CK),potassium nitrate(K_(1)),potassium nitrate+fermented cake fertilizer(K_(2)),potassium nitrate+humic acid compound fertilizer(K_(3))four treatments,and each treatment were repeated 3 times.The results showed that the tiller density,plant height,leaf length and chlorophyll content of K_(1)treatment were significantly higher than that in CK,K_(2)and K_(3)treatment in June;the tiller density of K_(2)was significantly higher than that in CK,K_(1)and K_(3)from July to October,and tiller density of K_(1)and K_(3)were significantly higher than CK from June to August;the coverage of K_(2)treatment was significantly higher than CK from June to October,K_(2)was significantly higher than K_(1)in June,July,September,October;plant height and leaf length of K_(2)were significantly higher than CK from July to October,and K_(2)was significantly higher than K_(1)in August and October;the leaf width of K_(2)treatment was significantly higher than that in control in July,August and October;chlorophyll content and plant fresh weight of K_(2)treatment were significantly higher than CK from July to October,and K_(2)was significantly higher than K_(3).In summary,the combination of potassium nitrate and fermented cake fertilizer can significantly improve the quality of kentucky bluegrass on the basis of the existing fertilization amount.