WU Jie,ZHAO Gui-ping,YU Da-de,et al.Optimal Potassium Application Rate for Panax ginseng[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(12):192-199.
WU Jie,ZHAO Gui-ping,YU Da-de,et al.Optimal Potassium Application Rate for Panax ginseng[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(12):192-199. DOI: 10.13422/j.cnki.syfjx.20220713.
Optimal Potassium Application Rate for Panax ginseng
The law of fertilizer requirement serves as the basis for the fertilization of medicinal plants, development of special fertilizer, and high-quality medicinal materials.
Method
2
This study aims to explore the optimal potassium application rate for
Panax ginseng
to achieve high yield and quality of the medicinal material and targeted management of potassium fertilizer. To be specific, 6 concentration gradients (0, 2, 4, 8, 10, and 12 mmol·L
-1
) of potassium sulfate (potassium fertilizer) were designed and applied to the 4-year-old
P. ginseng
in CK, C1, C2, C3, C4, and C5 treatments, respectively. Thereby, the influence of potassium concentration on
P. ginseng
was observed.
Result
2
When potassium sulfate was applied at 8 mmol·L
-1
,
P. ginseng
had the chlorophyll content of 32.13%, net photosynthetic rate of 2.548 8 µmol·m
-2
·s
-1
, and activities of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) significantly higher than those in the CK, C1, C4, and C5 treatments (
P
<
0.05). The average fresh weight of
P. ginseng
roots was 6.25 g, 134% up from the CK, and the content of ginsenoside Rg
1
(5.24 mg·g
-1
) and Re (4.17 mg·g
-1
) and total saponins (12.33 mg·g
-1
) was significantly higher than that in CK and other treatments (
P
<
0.05). Thus, 8 mmol·L
-1
potassium sulfate was most favorable for the growth and effective component accumulation of four-year-old
P. ginseng
.
Conclusion
2
This study expounds the effect of potassium fertilizer on the yield and quality of
P. ginseng
, which is expected to help guide the precise application of potassium fertilizer in
P. ginseng
production in the field and lay a theoretical basis for the development of special fertilizer for
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Related Author
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Related Institution
Pharmacy Faculty, Hubei University of Chinese Medicine
Sichuan TCM Group Co. Ltd.
State Key Laboratory of Southwest Specialty Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine(TCM)
State Key Laboratory Breeding Base of Systematic Research,Development and Utilization of Chinese Medicine Resources,Key Laboratory of Standardization of Chinese Herbal Medicine,College of Pharmacy,Chengdu University of Traditional Chinese Medicine
School of Biological and Chemical Engineering,Chongqing University of Education