A method for using foliar fertilizer for reducing heavy metal cadmium content in tobacco leaves

A foliar fertilizer and heavy metal technology, applied in fertilization methods, applications, magnesium fertilizers, etc., can solve the problems of consuming a lot of manpower, material resources, financial resources, and long treatment periods, and achieve the effects of low cost, obvious effect, and easy promotion.

Active Publication Date: 2020-11-03
HONGYUN HONGHE TOBACCO (GRP) CO LTD +1
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Problems solved by technology

[0005] In most flue-cured tobacco production areas, the cadmium in the soil is mainly brought by the soil background and human activities. If conventional treatment methods are used to eliminate soil cadmium pollution, not only the treatment cycle will be long, but also a lot of manpower, material and financial resources will be consumed.

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  • A method for using foliar fertilizer for reducing heavy metal cadmium content in tobacco leaves
  • A method for using foliar fertilizer for reducing heavy metal cadmium content in tobacco leaves
  • A method for using foliar fertilizer for reducing heavy metal cadmium content in tobacco leaves

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] The heavy metal cadmium in tobacco leaves mainly comes from the soil, and the enrichment of heavy metal cadmium by tobacco leaves is quite different in different growth stages of tobacco plants.

[0016] Tobacco leaves harvested at the cluster stage, vigorous stage, budding stage, and mature stage were put in an oven for 20 minutes at 105°C, and the content of heavy metal cadmium in the tobacco leaves was determined, as shown in Table 1.

[0017] Table 1 Cadmium content of flue-cured tobacco leaves at different growth stages (mg / kg)

[0018]

[0019]

[0020] It can be seen from Table 1 that the absorptio...

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Abstract

The invention discloses a using method for leaf fertilizer for reducing the heavy metal cadmium content in tobacco leaves. The method comprises the following steps of 1, preparing the leaf fertilizer, wherein common superphosphate and magnesium sulfate are adopted for preparing the leaf fertilizer, wherein the concentration of the common superphosphate is 5%, the concentration of the magnesium sulfate is 1%, and the common superphosphate and the magnesium sulfate are mixed in a balanced mode to obtain the leaf fertilizer; 2, using the leaf fertilizer, first-time leaf spraying is performed 30 d after flue-cured tobacco transplanting, then, the fertilizer is sprayed once every 15 d, and spraying is performed 4 times totally. The using method for the leaf fertilizer for reducing the heavy metal cadmium content in tobacco leaves is easy to implement, low in cost and capable of effectively reducing the heavy metal cadmium content in the tobacco leaves.

Description

technical field [0001] The invention relates to a method for using foliage fertilizer for reducing the content of heavy metal cadmium in tobacco leaves. Background technique [0002] Heavy metal pollution of agricultural products is a safety and quality issue that consumers generally pay attention to and urgently needs to be solved in the production process of agricultural products. Due to the difference in plant growth characteristics and genetic characteristics, different crops have significant differences in the absorption, enrichment process and characteristics of heavy metals (Teng Wei et al., 2010.9. Hazard and risk assessment of heavy metal pollution on agricultural products [M]. Beijing: Chemical Industry Press, 1). Tobacco leaves belong to the category of agricultural products and are also raw materials for the cigarette industry. The safety of tobacco leaves directly affects the safety of cigarettes. Tobacco is a cadmium-enriching crop, and the enrichment coeffic...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05G5/20A01C21/00
CPCA01C21/005C05B1/02C05G5/23C05D5/00
Inventor 刘红光饶智闫辉董石飞陈兴位王炽罗云程昌新李伟张静李枝武倪明罗华元
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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