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Rice selenium-rich cadmium-reducing foliar fertilizer and preparation method thereof

A foliar fertilizer and selenium-enriched technology, which is applied to liquid fertilizers, fertilization devices, fertilizer mixtures, etc., can solve the problems that selenium-enriching and cadmium-reducing effects are not significant, and that liquid sodium silicate and organic silicon are not involved in preventing and controlling cadmium pollution, etc. Achieve the effect of improving the health level of rice, improving the nutritional status of rice, and improving the effect

Inactive Publication Date: 2020-09-11
JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although the existing patent documents involve rice cadmium control technology and the application of selenium, none of them involve the use of liquid sodium silicate and organic silicon to prevent and control cadmium pollution, and the effect of enriching selenium and reducing cadmium is not significant. To improve the nutritional status of rice and improve the safety and quality of rice, it is necessary to develop a new rice foliar fertilizer rich in selenium and cadmium and apply it to rice planting

Method used

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  • Rice selenium-rich cadmium-reducing foliar fertilizer and preparation method thereof
  • Rice selenium-rich cadmium-reducing foliar fertilizer and preparation method thereof
  • Rice selenium-rich cadmium-reducing foliar fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0039] A rice foliar fertilizer enriched in selenium and reduced in cadmium, wherein the foliar fertilizer is prepared from the following raw materials in parts by weight:

[0040]

[0041] Described sodium silicate is the liquid sodium silicate that meets standard GB / T 4209-2008, SO 2 Content ≥ 26%, modulus 2.2-3.4, specific gravity 1.4. The sodium selenite is food-grade solid sodium selenite meeting the standard HG2937-1999. The silicone coupling agent is a chemically pure silicone coupling agent. The chitosan is food grade chitosan.

Embodiment 2

[0043] A rice foliar fertilizer enriched in selenium and reduced in cadmium, wherein the foliar fertilizer is prepared from the following raw materials in parts by weight:

[0044]

[0045] Described sodium silicate is the liquid sodium silicate that meets standard GB / T 4209-2008, SO 2 Content ≥ 26%, modulus 2.2-3.4, specific gravity 1.4. The sodium selenite is food-grade solid sodium selenite meeting the standard HG2937-1999. The silicone coupling agent is a chemically pure silicone coupling agent. The chitosan is food grade chitosan.

Embodiment 3

[0047] A rice foliar fertilizer enriched in selenium and reduced in cadmium, wherein the foliar fertilizer is prepared from the following raw materials in parts by weight:

[0048]

[0049] Described sodium silicate is the liquid sodium silicate that meets standard GB / T 4209-2008, SO 2 Content ≥ 26%, modulus 2.2-3.4, specific gravity 1.4. The sodium selenite is food-grade solid sodium selenite meeting the standard HG2937-1999. The silicone coupling agent is a chemically pure silicone coupling agent. The chitosan is food grade chitosan.

[0050] A kind of preparation method of rice selenium-enriched and cadmium-reducing foliar fertilizer described in above-mentioned embodiment 1-3, such as figure 1 shown, including the following steps:

[0051] 1) material preparation: take each raw material by weight parts, standby;

[0052] 2) Place the chitosan powder in a blender, spray the chitosan powder with a silicone coupling agent under the condition of nitrogen blowing, then ...

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Abstract

The invention discloses a selenium-rich and cadmium-reducing foliar fertilizer for rice and a preparation method thereof and belongs to the technical field of safety production of agricultural products. The invention discloses an efficient selenium-rich cadmium-reducing foliar fertilizer for rice, , which is prepared by taking liquid sodium silicate as a main raw material and adding organosilicone-coupled trace elements such as selenium, zinc, manganese, titanium and the like and composite synergists such as chitosan and the like, so that the purposes of increasing the selenium content of therice and controlling heavy metal cadmium to transfer and accumulate into the rice are achieved. The selenium-rich cadmium-reducing foliar fertilizer can effectively reduce the content of cadmium in rice, promote the absorption and utilization of silicon, selenium and nutrients by rice, improve the disease resistance, stress resistance, yield and quality of rice, and has very important significancefor guaranteeing the quality safety of rice and improving the health level of people.

Description

technical field [0001] The invention relates to the technical field of safe production of agricultural products, in particular to a rice foliar fertilizer rich in selenium and reduced in cadmium and a preparation method thereof. Background technique [0002] Selenium is an essential trace element for human body and animals. It has physiological functions such as anti-cancer, anti-oxidation, anti-aging, protection and maintenance of normal immunity. Selenium deficiency leads to the decline of human immunity, and more than 40 kinds of diseases such as cardiovascular disease, liver disease, cataract, pancreatic disease, and diabetes are prone to occur. Supplementing selenium can improve the health of the human body, and has a good improvement and therapeutic effect on the symptoms of related diseases. However, 72% of the population in 15 provinces and regions in my country is threatened by selenium deficiency. Therefore, improving the selenium nutrition level of our population...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G5/23
CPCC05D9/00C05G3/00C05G5/23C05D9/02
Inventor 涂书新
Owner JIANGXI PURUIFENG ECOLOGICAL TECH CO LTD
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