3种柱花草磷营养特性研究初探  

Preliminary Study on the Nutritional Characteristics of Phosphorous of Three Stylo(Stylosanthes guianensis cv.)

作　　者：陈晓斌[1] 梁于朝[1] 孟磊[2] 蒋昌顺[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所,海南儋州571737 [2]海南大学农学院,海南儋州571737

出　　处：《安徽农业科学》2008年第23期9937-9938,9943,共3页Journal of Anhui Agricultural Sciences

基　　金：中国热带农业科学院热带品种资源研究所项目资助

摘　　要：[目的]探索磷对柱花草的影响。[方法]利用盆栽试验,研究了热研2号,热研5号和热研13号3种柱花草牧草在磷水平为0(P0)、0.2(P1)、0.8(P2)、1.6(P3)g P2O5/kg土条件下的生长和养分吸收情况。[结果]结果表明,磷促进了柱花草的生长、植株干物质积累和植株对磷和氮量的吸收。综合考虑各生长指标,选择P2水平,即0.8 g P2O5/kg土作为最佳磷水平。而3种柱花草中,热研二号柱花草相对来讲是最优的品种。[结论]适量的磷对柱花草的生长具有一定的促进作用。[ Objective ] The research aimed to discuss the phosphorous effects on stylo. [ Method ] Pot experiments were conducted to study the growth and nutrient assimilation of 3 stylo（Stylosanthes guianensis cv. ） added different amount of P. There were 3 variety of stylo, including Stylosanthes guianensis cv. Reyan No. 2, S. guianensis cv. Reyan No. 5 and S. guianensis cv. Reyan No. 13, and 5 levels of P consumption, including 0（P0）, 0.2 （P1）, 0.8 （P2） and 1.6 g P2O5/kg soil （P3）. [ Result ] The results obtained revealed that P increased the growth, accumulation of dry matter and the assimilation of P and N of S. guianensis cv.. The level of P2 （0.8 g P2O5/kg soil） was the most optimal according to consideration of all indices of growth, and S. guianensis cv, Reyan No. 2 was the most optimal of the three variety after taking into account of the growth indices of three stylo. [ Conclusion] Proper level of phosphorous have promotion effects on growth of stylo.

关 键 词：磷 柱花草 营养特性 

分 类 号：S543.9[农业科学—作物学]