施肥对草坪型高羊茅种子产量及其组成的影响  

Effect of Fertilization on the Seed Yield and Yield Component of Tall Fescue

作　　者：徐荣[1] 韩建国[1] 毛培胜[1] 秦歌菊[1] 倪小琴[1] 

机构地区：[1]中国农业大学草地研究所,北京100094

出　　处：《草地学报》2001年第2期137-142,共6页Acta Agrestia Sinica

摘　　要：1999年 8月～ 2 0 0 0年 7月在宁夏农林科学院生物中心实验基地研究施肥对草坪型高羊茅种子产量及产量组成的影响。结果表明 ,施氮肥可显著提高高羊茅种子产量 ,以施氮量 90 kg/hm2 (秋季 45 kg/hm2 +春季 45kg/hm2 )种子产量最高 ,达 3 5 33kg/hm2 ,与对照相比 ,生殖枝数 /m2、小穗数 /生殖枝、小花数 /小穗、种子数WT5BZ]The response of seed components and yield to different applied nitrogen rates in tall fescue were studied at biological experiment farm of Ningxia agricultural and forestry academy in Yingchuan city of Ningxia during 1999 2000.The results indicated that the optimum applied rate of nitrogen was 90 kg/hm 2(45 kg/hm 2 in autumn +45 kg/hm 2 in spring) and it's seed yield was 3533 kg/hm 2.In contrast with CK(0 kg/hm 2 in autumn +0 kg/hm 2 in spring),the fertile tillers/m 2,spikelets per fertile tillers,florets per spikelets,seeds per spikelets were increased. [WT5HZ]

关 键 词：高羊茅 施肥 种子产量 产量构成 草坪草 

分 类 号：S688.4[农业科学—观赏园艺]