光照和播种量对高羊茅生长及草坪质量的影响  

Effects of light and seeding rates on the growth and turf quality of tall fescue(Festuca arundinecea)

作　　者：江海东[1] 孙小芳[1] 吴春 曹卫星[1] 

机构地区：[1]南京农业大学农业部作物生长调控重点开放实验室,南京210095

出　　处：《草业学报》2000年第4期63-67,共5页Acta Prataculturae Sinica

摘　　要：在不同的光照强度 (光照 150 0 0～ 2 0 0 0 0lx ;遮荫 30 0 0～ 4 0 0 0lx)和不同的播种量 ( 2 5、4 0g/m2 )条件下 ,对建植 3个月高羊茅草的生长及草坪质量进行了研究。结果表明 ,光照条件下草坪草表现优于遮荫。遮荫严重影响高羊茅的生长 ,降低草坪质量。遮荫条件下对氮的吸收减少 ,对钾的吸收有所增加。The effects of two light intensities(15 000～20 000 and 3 000～4 000 lx)and two seeding rates (25 and 40 g/m 2 ) on the growth and turf quality of three month tall fescue(Festuca arundinecea) turf were studied from Oct.,1998 to Jan.,1999. The performance of tall fescue under high intensity was better than that under low light intensity. Shading inhabited the growth of tall fescue, decreased the turf quality significantly, reduced N uptake and increased K uptake to some extent. On the contrary, the effects of seeding rates were relatively small.

关 键 词：光照 播种量 高羊茅 生长 草坪质量 

分 类 号：S668.401[农业科学—果树学]