Effects of combined application of N, P and K on yield and active ingredient content of rhizome of Paris polyphylla var. chinensis / 中草药
Chinese Traditional and Herbal Drugs
;
(24): 6103-6113, 2019.
Article
in Chinese
| WPRIM
| ID: wpr-850644
ABSTRACT
Objective:
To research the effects of different gradient levels of N, P, and K of rhizome of Paris polyphylla var. chinensis yield and quality, determine the optimal fertilization scheme and provide a scientific basis for rational fertilization.Methods:
The three-factor five-level quadratic general rotation combination design was adopted for field experiment, correlation measurement and data analysis were carried out, and the effects of combined application of N, P, and K on weight gain rate, total saponin content, ash, moisture and extracts were investigated.Results:
The established regression equations reached significant levels. When applying 41.66-52.60 kg/hm2 of N, 181.38-244.38 kg/hm2 of P, 24.16-35.20 kg/hm2 of K, the rhizome weight gain rate of P. polyphylla var. chinensis was greater than 81.72%; When applying 45.48-53.83 kg/hm2 of N, 179.98-236.83 kg/hm2 of P, 29.80-39.95 kg/hm2 of K, the total saponin content in the rhizome of P. polyphylla var. chinensis was greater than 11.09%; When applying 28.01-37.79 kg/hm2 of N, 127.18-209.18 kg/hm2 of P, 25.27-34.09 kg/hm2 of K, the extract content of the rhizome of P. polyphylla var. chinensis was more than 14.31%.Conclusion:
The optimum fertilization amount on the rhizome of P. polyphylla var. chinensis was as follow 37.79-45.48 kg/hm2 of N, 181.38-209.18 kg/hm2 of P, and 29.80-34.09 kg/hm2 of K.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional and Herbal Drugs
Year:
2019
Type:
Article
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