不同施肥条件对白头翁(Pulsatilla chinensis)吸肥特性及根重变化的影响

Effect of Different N,P and K Fertilizer Application on Nutrient Uptake and Root Biomass of Pulsatilla chinensis

采用目前对于肥料用量及配比研究较为实用可靠的"3414"实验方法,在棕壤大田进行白头翁栽培试验,力求找到适合于白头翁生长所需要的合理肥料用量及配比。结果表明,每棵苗(8kg土)施氮(N)17.94g;施磷(P2O5)12g;施钾(K2O)11.9g处理的每棵根系平均产量最高达到8.791g株-1。

The experiment with the ＂3414 design＂ was conducted for knowing the influence of nitrogen, phosphorus and potassium fertilizer on the yield of the root total N, total P and total K content of Pulsatilla chinensis in brown earth field. The result showed that the optimum combination of N, P and K was N ： 17.94g 8kg^-1 soil,P2O5： 12g 8kg^-1 soil, K2O：11.9g 8kg^-1 soil, and mean yield was the highest （8.791g pot^-1）.