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Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials 2007-Apr

[Effects of N P K on yield and baicalin contents of Scutellaria baicalensis].

Samo registrirani uporabniki lahko prevajajo članke
Prijava / prijava
Povezava se shrani v odložišče
Yan Zhang
Yong Liu
Wen-quan Wang
Ji-yong Wang

Ključne besede

Povzetek

OBJECTIVE

To find out the effects of different levels and combinations of nitrogen, phosphorus and potassium on the growth and secondary metabolites of Scutellaria baicalensis.

METHODS

The quantities of growth, physiological indicators and baicalin contents in different fertilization treatment were calculated and compared.

RESULTS

The growth physiological indicators and baicalin contents of S. baicalensis in complex fertilization treatment were better than those in single element fertilization treatment, and nutrition balance types better than maladjustment type. The reasonebly fertilitzing in complex fertilization treatment, nitrogen could improve the fertilizer efficiency of phosphorus.

CONCLUSIONS

According to the fertilization mathematic model, the optimum fertilization dosage should be primarily defined as N: 22.6-25.0 g/m2, P: 30.6-44.6 g/m2, K: 5.4-21.4 g/m2, that is 2N:3P:1K.

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