播量及修剪留茬高度对草地早熟禾草坪蒸散量的影响  

The Influence of Seed Quantity and Mowing Height on the Evapo transpiration of Kentucky Bluegrass

作　　者：潘全山[1] 韩建国[1] 王培[1] 

机构地区：[1]中国农业大学草地研究所,北京100094

出　　处：《草原与草坪》2000年第4期10-14,共5页Grassland and Turf

摘　　要：在土壤水分充足的条件下研究了播量、修剪留茬高度对草地早熟禾草坪蒸散量的影响。结果表明 :修剪留茬高的草地早熟禾草坪的蒸散明显高于修剪留茬低的草地早熟禾草坪 ;在草地早熟禾的生长初期 ,播量大的草地早熟禾草坪的蒸散量明显大于播量小的蒸散量 ,播量与修剪留茬高度两因子间相互作用明显 ;但随着草地早熟禾的不断生长、分蘖 ,播量对其草坪蒸散量的影响逐渐减小直至消失 ,播量与修剪留茬高度间的相互作用变得不明显。This experiment was conducted in the greenhouse of China Agriculture University (CAU) Beijing. The result indicated that at the beginning growing period of Kentucky bluegrass, its evapo transpiration (ET) was significantly influenced ( P <0.05) by seeding quantity and mowing height: higher seeding quantity got higher ET, higher mowing height got higher ET. The interaction between seeding quantity and mowing height was significant ( P <0.05). With the growth of Kentucky bluegrass the influence of seeding quantity on ET decreased, poor fainted , the interaction between seeding quantity and mowing height became weak. But mowing height had even significant influence ( P <0.01) on ET of Kentucky bluegrass.

关 键 词：草地早熟禾 播量 修剪留茬高度 蒸散量 草坪草 

分 类 号：S688.404.2[农业科学—观赏园艺] S688.405.1[农业科学—园艺学]