【摘要】 目的在石灰岩山原红壤的田块上,探讨不同氮磷钾配比施肥对三七生长及产量的影响,优选NPK组合配比,为三七专用肥的开发提供技术依据。方法采用随机区组排列进行不同氮磷钾配比施肥的田间小区试验。结果不同比例的自配肥大都能增加三七茎粗、叶面积和株高,改善其生物学性状;各处理的出苗率均达到差异显著或极显著率水平;产量则以自配肥处理3最高,比对照增产15.18%。结论在本实验条件下,以施用N∶P2O5∶K2O比例为1∶1∶2处理最好。更多还原

【Abstract】 Objective To investigate the effect of fertilizing different proportion of N,P and K on the growth and yield of Panax notoginseng.Methods To compound different proportion fertilizer of N,P and K,and make up experiment in the field by random disposal teams.Results It had been obtained that with different proportion self-confect fertilizer can all increase the thick trunk,the extent leaf,and the height,and to improve biologic character of plant.In the rate of emergence,each team had all obtained level significantly;in the yield,3th team had increased production over 15.18% than those of in the contrast team.Conclusion It was the best proportion which compound of N,P,K was 1∶1∶2.更多还原