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Fertilizer for reducing cadmium content of peanut and application thereof

A technology of peanut content and peanut, which is applied in the agricultural field, can solve the problems affecting the growth and production of peanuts, the health hazards of domestic consumers, and the rotten fruit of peanuts, etc., to achieve the effect of increasing peanut production, meeting demand, and increasing rice yield

Inactive Publication Date: 2012-08-15
SHANDONG PEANUT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the problem of excessive cadmium content in peanut kernels often occurs, which not only affects the export of peanuts, but also brings great potential harm to the health of domestic consumers
However, there are currently few methods for controlling cadmium pollution
In existing reports, organic fertilizers can reduce cadmium content, but when the soil cadmium concentration is high, the effect is poor. Calcium application can inhibit the absorption of cadmium, but when the amount of calcium is small, the effect is not obvious. When the amount of calcium is large, Not only the interaction between calcium and potassium is likely to cause peanut rot, but also has obvious inhibitory effect on the absorption of zinc, copper and other equivalent elements, resulting in nutritional stress, affecting the normal growth and production of peanuts

Method used

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  • Fertilizer for reducing cadmium content of peanut and application thereof
  • Fertilizer for reducing cadmium content of peanut and application thereof
  • Fertilizer for reducing cadmium content of peanut and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] neutral soil

[0012] The fertilizer for reducing cadmium content in peanuts was formulated according to the acidity and alkalinity of the soil. In 2003, 30kg of gypsum, 0.6kg of copper sulfate, 1kg of zinc sulfate, 0.8kg of ferrous sulfate, and 1kg of manganese sulfate were applied per mu, and other fertilizers were applied as usual. In 2005, 30kg of gypsum, 0.8kg of copper sulfate, 0.8kg of zinc sulfate, 0.5kg of ferrous sulfate, and 1.5kg of manganese sulfate were used as the base application per mu, and other fertilizers were applied according to conventional techniques. The results in table 1 show that, compared with the traditional technology, the number of fruit per plant processed by the technology of the present invention increases by 1.1 to 1.5 per plant, and improves by 9.3% to 12.6%; the yield of rice increases by 5.6% to 12.1%; the yield of pods increases by 40.6 to 44.4% kg / mu, 9.8%~12.5%; compared with traditional technology, the cadmium content is reduce...

Embodiment 2

[0018] acidic soil

[0019] Prepare the fertilizers for reducing the cadmium content of peanuts according to the acidity and alkalinity of the soil, which are: 40kg per mu of lime, 0.6kg of copper sulfate, 0.8kg of zinc sulfate, 0.8kg of ferrous sulfate, 1.5kg of manganese sulfate and apply after mixing. Apply together according to conventional techniques; per mu, apply 50kg of lime, 0.8kg of copper sulfate, 1kg of zinc sulfate, 0.5kg of ferrous sulfate, and 1kg of manganese sulfate, and apply them together with other conventional fertilizers.

[0020] The results in Table 2 show that compared with the traditional technology, the number of fruit per plant processed by the technology of the present invention increases by 0.9 to 1.2 per plant, and improves by 7.9% to 10.1%; the rice yield improves by 7.5% to 8.9%; the pod yield increases by 41.4 to 41.8% kg / mu, 10.3%~12.2%; compared with traditional technology, the cadmium content is reduced by 22.6%~34.3%.

[0021] Table 2 Aci...

Embodiment 3

[0026] alkaline soil

[0027] Prepare the fertilizers for reducing the cadmium content of peanuts according to the acidity and alkalinity of the soil, which are: 40kg of gypsum per mu, 0.6kg of copper sulfate, 1kg of zinc sulfate, 0.8kg of ferrous sulfate, and 1kg of manganese sulfate, and apply them after mixing. Other fertilizers are applied as usual Applied together with technology; 40kg of gypsum, 0.8kg of copper sulfate, 0.8kg of zinc sulfate, 0.5kg of ferrous sulfate, and 1.5kg of manganese sulfate are applied per mu, and other conventional fertilizers are applied together.

[0028] The results in table 3 show that the number of fruit per plant processed by the technology of the present invention is compared with the traditional technology, increasing by 1.2 to 1.5 per plant, and improving by 11.9% to 14.3%; the yield of rice is improved by 7.3% to 8.4%; the pod yield is increased by 38.3 to 46.8% kg / mu, 11.6%~16.2%; compared with traditional technology, the cadmium cont...

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Abstract

The invention relates to a fertilizer for reducing cadmium content of peanut and application thereof. The fertilizer for reducing the cadmium content of the peanut is prepared according to alkalinity or acidity of soil; 30-40kg gypsum, 0.6-0.8kg of copper sulfate, 0.8-1kg of zinc sulfate, 0.5-0.8kg of ferrous sulfate, and 1-1.5kg of manganese sulfate are compounded, mixed uniformly and applied per hectare of alkaline or neutral soil; and 40-50kg of lime, 0.6-0.8kg of copper sulfate, 0.8-1kg of zinc sulfate, 0.5-0.8kg of ferrous sulfate, and 1-1.5kg of manganese sulfate are compounded, mixed uniformly and applied per hectare of acid soil. According to the fertilizer, adsorption and antagonistic action between elements is utilized, and elements with the same valence as cadmium are applied in a balanceable mode, so that the adsorption of the peanut on the cadmium can be inhibited, the content of the cadmium in peanut seeds is reduced, the requirement of the peanut on various nutrient elements can be met, decayed fruits caused by interaction of potassium and calcium due to high-quantity application of calcium are avoided, the yield of the peanut is improved, and high yield and food safety are synchronized. Experiments show that according to the fertilizer, the fruit number per plant is increased to be 0.9-1.5 / plant, the milled rice rate is improved by 5.6 percent-12.1 percent, the yield of legume is increased by 9.8 percent-16.2 percent, and the content of the cadmium in the peanut seeds is reduced by 22.1 percnet-39.0 percent.

Description

technical field [0001] The invention relates to a fertilizer for reducing cadmium content in peanuts and an application thereof, belonging to the technical field of agriculture. Background technique [0002] Heavy metal cadmium (Cd) is one of the most important factors affecting peanut food safety. The International Health Organization (WHO) and the United Nations Food and Agriculture Organization (FAO) stipulated that the per capita daily intake is 57.1-71.4μg in 2000, and the maximum content of cadmium in green food peanuts should not exceed 0.1mg / kg. However, at present, the problem of excessive cadmium content in peanut kernels often occurs, which not only affects the export of peanuts, but also brings great potential harm to the health of domestic consumers. However, currently there are few methods for controlling cadmium pollution. In existing reports, organic fertilizers can reduce cadmium content, but when the soil cadmium concentration is high, the effect is poor....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 王才斌郑亚萍吴正峰郑永美孙学武冯昊王建国
Owner SHANDONG PEANUT RES INST
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