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Cultivation method for reducing cadmium content of peanut kernel

A technology of cadmium content and content, applied in the agricultural field, can solve the problem of no cadmium pollution and the like

Inactive Publication Date: 2009-02-18
SHANDONG PEANUT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In conventional production, there is no specific and effective technology to control cadmium pollution

Method used

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  • Cultivation method for reducing cadmium content of peanut kernel
  • Cultivation method for reducing cadmium content of peanut kernel
  • Cultivation method for reducing cadmium content of peanut kernel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Test time: 2005;

[0022] 2. Test varieties: Huayu 22, Luhua 11, Luhua 12, Luhua 13;

[0023] 3. Soil pH: 7.9;

[0024] 4. Technology of the present invention:

[0025] (1) Fertilizer per mu: 700kg of decomposed pig manure, 15kg of diammonium phosphate, 15kg of ammonium sulfate, 15kg of potassium sulfate, and 10kg of gypsum;

[0026] (2) Rare earth seed dressing: Soak seeds in 150mg / L rare earth solution.

[0027] 5. Conventional technology:

[0028] Apply 50 kg of ternary compound fertilizer per mu (the percentage by weight of nitrogen, phosphorus pentoxide and potassium oxide is 15%).

[0029] Table 1 The impact of the invention on cadmium content (mg / kg) in peanut kernels (in 2005, soil pH7.9)

[0030]

[0031]

[0032] As can be seen from Table 1, compared with conventional techniques for planting peanuts, the method of the present invention can reduce the cadmium content of No. 22 Huayu seeds by 56.4%, reduce the cadmium content of No. 11 Luhua seeds ...

example 2

[0034] 1. Test time: 2005;

[0035] 2. Test varieties: Huayu 22, Luhua 11, Luhua 12, Luhua 13;

[0036] 3. Soil pH: 6.3;

[0037] 4. Technology of the present invention:

[0038] (1) Fertilizer per mu: 800kg of decomposed pig manure, 20kg of diammonium phosphate, 20kg of ammonium sulfate, 20kg of potassium sulfate, and 30kg of lime;

[0039] (2) Rare earth seed dressing: Soak seeds in 120mg / L rare earth solution.

[0040] 5. Conventional technology:

[0041] Apply 50 kg of ternary compound fertilizer per mu (the percentage by weight of nitrogen, phosphorus pentoxide and potassium oxide is 15%).

[0042] Table 2 The impact of the invention on cadmium content (mg / kg) in peanut kernels (in 2005, soil pH6.3)

[0043]

[0044] As can be seen from Table 2, compared with conventional techniques for planting peanuts, the method of the present invention can reduce the cadmium content in No. 22 Huayu seeds by 33.6%, reduce the cadmium content in No. 11 Luhua seeds by 28.0%, and ...

example 3

[0046] 1. Test time: 2006;

[0047] 2. Test varieties: Huayu 22, Luhua 11, Huayu 20, Huayu 23;

[0048] 3. Soil pH: 7.7;

[0049] 4. Technology of the present invention:

[0050] (1) Fertilizer per mu: 800kg of decomposed pig manure, 20kg of diammonium phosphate, 15kg of ammonium sulfate, 15kg of potassium sulfate, and 15kg of gypsum;

[0051] (2) Rare earth seed dressing: Soak seeds in 140mg / L rare earth solution.

[0052] 5. Conventional technology:

[0053] Apply 50 kg of ternary compound fertilizer per mu (the percentage by weight of nitrogen, phosphorus pentoxide and potassium oxide is 15%).

[0054] Table 3 The impact of the invention on cadmium content (mg / kg) in peanut kernels (2006, soil pH7.7)

[0055]

[0056] As can be seen from Table 3, compared with conventional techniques for planting peanuts, the method of the present invention can reduce the cadmium content in the seeds of Huayu No. 22 by 33.1%, the cadmium content in the seeds of Luhua No. 11 by 42.3%...

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Abstract

The invention belongs to the technical field of agriculture, in particular to a cultivation method for reducing cadmium content in peanut seed kernels. By applying fertilizer mu by mu and dressing seeds with rare earth, the cultivation method reduces the cadmium content in the peanut seed kernels and guarantees peanut quality as well as the health of eaters.

Description

technical field [0001] The invention belongs to the technical field of agriculture, in particular to a cultivation method for reducing the cadmium content of peanut kernels. Background technique [0002] Cadmium (Cd) is one of the most dangerous heavy metal elements in the environment, which is highly toxic to humans, animals and plants. At present, the farmland polluted by Cd in my country has exceeded 200,000 hm 2 , the annual production of agricultural products with excessive Cd content reaches 1.46 billion kilograms. Peanut is an important oil crop and export earning crop in my country. In recent years, as domestic and foreign consumers pay more and more attention to food safety, the problem of Cd pollution in peanuts has gradually emerged. In 2000, the Ministry of Agriculture promulgated the relevant standards for green food peanuts, stipulating that the Cd content in the green food peanut kernels should not exceed 0.1mg / kg. According to sampling tests by relevant u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01C21/00A01C1/06C05G3/04B09C1/08C05G3/80
Inventor 万书波王才斌冯昊吴正锋郑亚萍孙学武孙奎香
Owner SHANDONG PEANUT RES INST
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