不同氮磷肥施用量对城市景观草坪生长与养分吸收的影响  

Effect of different application rates of nitrogen and phosphorus fertilizer on urban landscape lawn growth and nutrient uptake

作　　者：张吉立[1] 

机构地区：[1]大庆职业学院,黑龙江大庆163255

出　　处：《中国土壤与肥料》2014年第6期63-66,共4页Soil and Fertilizer Sciences in China

基　　金：黑龙江省高职高专院校科学技术研究项目"不同土壤肥力下旅游景观草坪质量差异研究"(12535011)

摘　　要：为了给城市景观草坪科学施肥提供理论依据,试验在城市环境条件下研究了不同氮、磷用量对景观草坪生长与养分吸收的影响。结果表明：7、9、10月氮、磷用量为41.90 kg/hm^2处理的叶片长度最大,分别高于对照1.58、2.46、2.62 cm,差异显著;7-10月41.90 kg/hm^2处理干物质积累量最高,分别比对照提高2.79、1.78、2.32、1.89倍,差异显著,37.71 kg/hm^2处理与对照之间无显著差异。41.90 kg/hm^2处理的氮吸收量7-10月分别比对照提高3.93、2.50、3.59、2.66倍,差异显著,46.09 kg/hm^2处理显著高于对照;41.90 kg/hm^2处理的磷吸收量7-10月分别高于对照3.98、2.18、3.07、2.18倍,差异显著,8-10月37.71 kg/hm^2处理与对照之间无显著差异;41.90 kg/hm^2处理的钾吸收量7-10月分别高于对照4.24、2.16、3.22、2.55倍,差异显著。综合分析认为,城市景观草坪氮、磷施用量以41.90 kg/hm^2为宜。In order to provide a theoretical basis for urban landscape lawn fertilization,lawn growth and nutrient uptake in different application rates of nitrogen and phosphorus fertilizer were studied under urban environment. The results showed that：41. 90 kg / hm^2 treatment reached the highest leaf length and was higher than control by 1. 58,2. 46,2. 62 cm respectively and had significant differences in July,September and October; 41. 90 kg / hm^2 treatment had the highest dry matter weight and was higher than control by 2. 79,1. 78,2. 32,1. 89 times respectively and had significant differences in July to October,37. 71 kg / hm^2 treatment had no significant difference with control. The nitrogen uptake of 41. 90 kg / hm^2 treatment was higher than control by 3. 93,2. 50,3. 59 and 2. 66 times respectively and had significant differences with control. That of46. 09 kg / hm^2 treatment was also significantly higher than control. The phosphorus uptake of 41. 90 kg / hm^2 treatment was higher than that of control by 3. 98,2. 18,3. 07 and 2. 18 times respectively and had significant differences,and 37. 71 kg /hm^2 treatment had no significant differences with control in August to October. The potassium uptake of 41. 90 kg / hm^2 treatment was higher than control by 4. 24,2. 16,3. 22 and 2. 55 times respectively and had significant differences with control.Comprehensive analysis showed that the most suitable rate of nitrogen and phosphorus fertilizer for urban landscape lawn was41. 90 kg / hm^2.

关 键 词：氮、磷肥 景观草坪 草坪生长 养分吸收 

分 类 号：S147.22[农业科学—肥料学] S688.4[农业科学—农业基础科学]