Cultivation method capable of lowering coptis chinensis cadmium contents

A cultivation method, the technology of coptis cadmium, applied in the field of cultivation to reduce the cadmium content of coptis, can solve the problems of reducing the cadmium content of coptis, the impact on human health, etc., and achieve the effects of increasing organic matter content, reducing soil cadmium pollution, and reducing fertilizer input costs

Active Publication Date: 2015-06-03
LICHUAN CITY JIANZHUXI BERBERINE PROFESSIONAL COOP
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AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem of the influence of the above-mentioned Coptidis decoction pieces (products) and Chinese patent medicines containing Coptidis on human health, and provides a cultivation method for reducing the cadmium content of Coptidis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First, measure the soil state and carry out soil ecological restoration on the soil with cadmium content exceeding the GB15618-1995 standard. The ecological restoration plan is to reduce cadmium and supplement potassium to promote the oxidation of organic matter, and at the same time improve the structure of the soil mass;

[0023] Then scientifically use fertilizers on Coptis chinensis, apply decomposed organic fertilizer 2000±100kg per mu, and potassium sulfate 30±1kg;

[0024] In the first three years when the vegetative growth of Coptis chinensis is the main method, the method of topdressing is four times in spring, summer, autumn and winter; the amount of topdressing per mu: 15 to 20kg of ammonium bicarbonate in spring fertilizer, 15kg of ammonium bicarbonate in summer and autumn topdressing, plus 5 to 10kg of potassium sulfate , winter fertilizer organic fertilizer 300±30kg, combined with soil after topdressing in summer, autumn and winter, the thickness of soil is...

Embodiment 2

[0035] The location is Jianzhuxi, Lichuan City, at an altitude of 1300-1450m. The parent material of the soil is paddy soil (Dongpaotian) with quartz sandstone and purple shale interbedded slope deposits, with a Ph value of 6.2.0-6.5 and a cadmium content of 0.39mg / kg. Organic matter 3.8%, total nitrogen 1.2%, available phosphorus 48mg / kg, available potassium 58mg / kg. The perennial fertilization level for rice planting is 150kg of phosphate fertilizer (superphosphate-produced in Yichang), 25kg of urea, 100kg of ammonium bicarbonate, and the rice yield per unit area is 300-320kg. The soil fertility is characterized by high nitrogen, phosphorus, potassium deficiency, high potential fertility, and cadmium content exceeding the GB15618-1995 standard. The soil ecological restoration plan is to reduce cadmium and supplement potassium to promote the oxidation of organic matter, and at the same time improve the structure of the soil mass.

[0036] 1. When the rice is harvested in aut...

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Abstract

The invention relates to a cultivation method capable of lowering coptis chinensis cadmium contents and solves the problem that coptis chinensis is high in cadmium contents. According to the technical scheme, the method includes: measuring soil states and restoring soil ecology, and scientifically fertilizing the coptis chinensis, to be more specific, applying 2000+ / -100kg of compost organic fertilizer and 30+ / -1kg of potassium sulfate to each mu as base fertilizer; performing top dressing on the coptis chinensis in the first three years of the vegetation growth of the coptis chinensis, wherein the top dressing is performed in the spring, summer, autumn and winter of each year, 15-20kg of ammonium bicarbonate is top dressed in each spring, 15kg of ammonium bicarbonate and 5-10kg potassium sulfate are top dressed in each summer and each autumn, 500+ / -100kg of organic fertilizer is top dressed in winter, earth up with the thickness of 1-1.5cm is performed after each summer top dressing, each autumn top dressing and each winter top dressing; performing top dressing on the coptis chinensis in the fourth year and the fifth year of the sexual growth of the coptis chinensis, wherein 500+ / -50kg of organic fertilizer and 10+ / -1kg of ammonium dihydrogen phosphate are top dressed in each winter, 10+ / -1kg of ammonium bicarbonate, 10+ / -2kg of ammonium dihydrogen phosphate and 5+ / -0.5kg of potassium sulfate are top dressed in each spring, and 8-10kg of ammonium bicarbonate and 10+ / -1kg of potassium sulfate are top dressed in each summer and in each autumn.

Description

technical field [0001] The invention belongs to a method for planting Coptis chinensis, and relates to a cultivation method for reducing the cadmium content of Coptis chinensis. Background technique [0002] "Analysis of Cadmium Content in Coptidis Plants and Soil" (2004) indicated that: "Different species of Coptidis and different growth years of the same species have different cadmium content." Is there any relationship between the "Standards" on the content of toxic heavy metals in agricultural products and the level of cadmium in the soil where Coptis chinensis is grown? Perhaps when the soil in which Coptis chinensis is grown does not contain the toxic heavy metal cadmium, does the produced Coptis chinensis still contain cadmium or cadmium exceeds the standard? [0003] Wang Youwei, Ban Xiaoquan, Mou Laiming and others on "Analysis of Cadmium Contents in Soil and Medicinal Materials in Coptidis Main Production Areas of Hubei Province" (2010) proved that: the content of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02C05G1/00C05F17/00
CPCY02W30/40
Inventor 牟来明徐泽刚
Owner LICHUAN CITY JIANZHUXI BERBERINE PROFESSIONAL COOP
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