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.
出处
《安徽农业科学》
CAS
北大核心
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
关键词
磷
柱花草
营养特性
Phosphorus
Stylo（Stylosanthes guianensis cv. ）
Nutritional characteristics
