3年生三七吸肥规律研究

Study on the Law of Assimilating Fertilizer of Three-year-old Panax notoginseng (Burk.)F.H.Chen

目的掌握3年生三七对氮、磷、钾肥的吸收利用规律。方法采用田间试验与室内检测相结合的方法,设定不同肥料用量田间试验,定期采样进行檀株养分含量测定。结果肥料用量对植株养分吸收及产、质量均有一定影响。结论三七养分吸收的高峰期为6月和11月,较利于实现三七优质、适产栽培的肥料用量为纯氮450kg/hm^2、P_2O_5 337.5kg/hm^2、K_2O 900kg/hm^2。

Objective Master the law of assimilating fertilizer of N,P,K in three-year-old Panax notoginseng （Burk.）F.H.Chen. Mothods The field experiment and indoor detection, was setting field experiment of different fertilizers applying quantity, using determination nutrient contents in plant by sampled at fixed. Rosults There is certain effect of fertilizers applying quantity on nutrient uptake in plants and yield and quality. Conclusion The peak nutrient uptake in plants is in the June and November, better fertilizers applying quantity is purity N450 kg/hm^2、P2O5 337.5kg/hm^2、K2O 900 kg/hm^2. with good quality and proper yield.