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- W2392558191 abstract "Objective To study the effects of N,P,and K fertilizers on the growth and accumulation of secondary metabolites,to reveal the accumulation relationship between the biomass and the secondary metabolites in medicinal plants in the plantation,and to establish the basic theory of fertilization in medicinal plant culture.Methods Orthogonal design was used to study the effects of nine combinations of N,P, and K on the biomass and active constituents in three levels of three factors.While plants flowered,they were harvested,weighed,and smashed.Then contents of N,total caffee esters,and scutellarin were anaylzed.Results High amount of N,P,and K fertilizers was optimum to the accumulation of biomass, but low amount of N,P,and K fertilizers was optimum to the accumulation of total caffee esters and scutellarin.The N fertilizer significantly increased the biomass and decreased the content of total caffee esters and scutellarin in Erigeron breviscapus,but did not affect the active constituents yield.The effect of P on the accumulation of active constituents was higher than that of K,but its effect on the biomass accumulation was lower than that of K.The effect of K on the active constituents yield was the highest.Conclusion N,P,and K fertilizers could increase biomass and active constituents yield,nevertheless,decrease the contents of flavonoids in medicinal plants." @default.
- W2392558191 created "2016-06-24" @default.
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- W2392558191 date "2009-01-01" @default.
- W2392558191 modified "2023-09-24" @default.
- W2392558191 title "Effects of N,P,and K fertilizers on growth of Erigeron breviscapus and its active constituents accumulation" @default.
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