摘要
采用完全随机试验设计,研究了多花黑麦草Lolium multiflorum春季不同时期(分蘖期、拔节期和孕穗期)、不同施肥量对其种子生产性能的影响,结果表明,各处理对种子产量的影响极显著(P<0.01),处理B2[拔节期施肥N∶P∶K=20∶18∶22.5(kg/hm2)]种子产量最高,达到620.1 kg/hm2,比对照增产48.7%。与对照相比,千粒重和小穗数均显著增加。
A complete random design was used to study the effects of fertilization rates at differentgrowth stages （tillering,stem elongation and booting stages ） on seed yield of Lolium multiflorum inthis paper. The results indicated that seed yield was affected significantly among the different treatments （P〈0.01）. The treatment B2[N：P：K=20：18：22.5 （kg/hm^2） at stem elongation stage]gave the highest seed yield of 620.1kg/hm^2 ,48.7% more than control. The thousand seed weight andnumber of spikelet were also significantly increased.
出处
《草业科学》
CAS
CSCD
2006年第1期62-64,共3页
Pratacultural Science
关键词
春季施肥
多花黑麦草
种子生产性能
fertilization in spring
Lolium multiflorum
seed productivity
