当前位置: 首页 > 文章 > 热研2号柱花草生长动态 热带农业科学 2011,31 (2) 24-28
Position: Home > Articles > Growth Dynamics of Stylosanthes guianensis cv. Reyan No.2 Chinese Journal of Tropical Agriculture 2011,31 (2) 24-28

热研2号柱花草生长动态

作  者:
杨帆;张宇;余爱;唐树梅;漆智平
单  位:
中国热带农业科学院热带作物品种资源研究所;海南大学农学院
关键词:
热研2号柱花草;矿质养分;营养成分
摘  要:
以热研2号柱花草[Stylosanthes guianensis(Aublet)Swartz cv.Reyan No.2]为材料,研究不同生长阶段干物质产量、养分和营养成分变化。结果表明:地上部干物质呈"单峰"曲线,初花期最高为540.81 g/株;地上部苗期吸收的N、P、K较小,但干物质养分含量高;分枝期后吸收量增加,初花期后N、P出现负积累,整个生育期地上部对磷的吸收量最小;随热研2号柱花草生育期的延续,地上部粗蛋白含量降低,粗纤维含量升高,营养价值降低,初花期粗蛋白产量最大为54.78 g/株。
译  名:
Growth Dynamics of Stylosanthes guianensis cv. Reyan No.2
作  者:
YANG Fan1,2) ZHANG Yu1,2) YU Ai1) TANG Shumei1) QI Zhiping2(1 Agriculture College,Hainan University,Haikou,Hainan 570228,China; 2 Tropical Crops Genetic Resources Institute,CATAS,Danzhou,Hainan 571737,China)
关键词:
Stylosanthes guianensis(Aublet)Swartz cv.Reyan No.2;mineral nutrients;nutrient components.
摘  要:
The dry matter(DM) yield,mineral nutrients and nutrient components of Stylosanthes guianensis(Aublet) Swartz cv.Reyan No.2 at different growth stages were studied.The results showed that DM yield of the overground part was a single peak curve,and the peak value was 540.81 g/plant at early flower stage.The uptake quantity of N,P and K of the overground part was the lowest at seedling stage,whereas the contents of nutrients in the dry matter were the highest.The uptake quantity of N,P and K of the overground part increased rapidly after branching stage,until early flower stage after which N and K accumulation showed negative growth.As for nutrient components,the crude fiber content increased with growing time,but the crude protein(CP) content decreased,nutritive value deceased as well.The maximum CP yield was 54.78 g/plant at early flower stage.

相似文章

计量
文章访问数: 2
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊