Selenium-rich cadmium-reducing leaf fertilizer special for paddy

A foliar fertilizer, rice technology, applied in the application, nitrogen fertilizer, potassium fertilizer and other directions, can solve problems such as unfavorable rice growth, plant growth impact, deficiency, etc., to enhance the ability of selenium enrichment and cadmium reduction, solve the precipitation of nutrient elements, and promote the improvement of Effect

Active Publication Date: 2017-05-31
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The plant selenium-enriched and cadmium-reducing ecological nutrition conditioner can promote crops to absorb nutrients efficiently, grow quickly and healthily, reduce various toxic and harmful substances, especially cadmium and arsenic in polluted soil have obvious effects, and at the same time produce high-quality selenium-enriched Agricultural products; it has a wide range of applications and can be used for various crops such as rice, wheat, tea, fruits, vegetables, and medicinal materials. However, the nutritional conditioner lacks the trace elements required by plants, which is not conducive to the growth of rice. In addition, humic acid is used as a chelating agent It is easy to cause precipitation of trace elements such as zinc, magnesium, manganese, copper, etc., and these elements are precisely the nutrients necessary for plant growth, which have a great impact on plant growth

Method used

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  • Selenium-rich cadmium-reducing leaf fertilizer special for paddy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The special selenium-enriched and cadmium-reducing foliar fertilizer of the present embodiment consists of citric acid monohydrate 50g, sodium selenite 24g, urea 220g, potassium chloride 55g, potassium dihydrogen phosphate 90g, soluble trace element compound 2g by weight ( Zinc chloride 1g, magnesium chloride 0.7g, copper nitrate 0.3g), grosvenor fruit 6g, and lotus 0.5g.

[0034] The preparation method of the special selenium-enriched and cadmium-reduced foliar fertilizer for rice of the present embodiment comprises the following steps:

[0035] A. Pulverize the lotus plant, dry it under vacuum at 45°C for 6 hours, add 27% ethanol with a volume fraction of 28 times the total weight, and carry out the extraction under the conditions of extraction pressure 1.5MPa, extraction time 40min, and microwave power 600W Microwave extraction, filtration, and the resulting filtrate was concentrated to a volume of 20ml for subsequent use;

[0036] B. Grind the Momordica grosvenori,...

Embodiment 2

[0043] The special-purpose selenium-enriched and cadmium-reducing foliar fertilizer of the present embodiment consists of citric acid monohydrate 30g, sodium selenite 15g, urea 160g, potassium chloride 70g, potassium dihydrogen phosphate 70g, soluble trace element compound 20g by weight ( Zinc chloride 8g, magnesium sulfate 7g, manganese chloride 1g, ferrous sulfate 4g), grosvenor fruit 3g, hollow lotus 3g.

[0044] The preparation method of the special selenium-enriched and cadmium-reduced foliar fertilizer for rice of the present embodiment comprises the following steps:

[0045] A. Pulverize the lotus plant, dry it in vacuum at 30°C for 10 hours, add 33% ethanol with a volume fraction 20 times the total weight, and carry out the extraction under the conditions of 0.5MPa extraction pressure, 70min extraction time, and 550W microwave power. Microwave extraction, filtration, the resulting filtrate was concentrated to a volume of 10ml for subsequent use;

[0046] B. Grind the ...

Embodiment 3

[0053] The special-purpose selenium-enriched and cadmium-reducing foliar fertilizer of the present embodiment consists of citric acid monohydrate 40g, sodium selenite 20g, urea 200g, potassium chloride 62g, potassium dihydrogen phosphate 80g, soluble trace element compound 12g by weight ( Composition of zinc chloride 3g, magnesium nitrate 6g, copper chloride 0.5g, manganese sulfate 1g, ferric nitrate 1.5g), Luo Han Guo 5g, Hollow Lotus 2g.

[0054] The preparation method of the special selenium-enriched and cadmium-reduced foliar fertilizer for rice of the present embodiment comprises the following steps:

[0055] A. Pulverize the lotus plant, dry it in vacuum at 37°C for 8 hours, add 30% ethanol with a volume fraction of 25 times the total weight, and carry out under the conditions of extraction pressure of 1.2 MPa, extraction time of 55 min, and microwave power of 570 watts Microwave extraction, filtration, the resulting filtrate was concentrated to a volume of 15ml for subs...

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Abstract

The invention belongs to the technical field of a paddy planting fertilizer and specifically relates to a selenium-rich cadmium-reducing leaf fertilizer special for paddy. The selenium-rich cadmium-reducing leaf fertilizer special for paddy is composed of citric acid monohydrate, sodium selenite, urea, potassium chloride, monopotassium phosphate, soluble microelement compound, momordica grosvenori and herb of alligator alternanthera. The leaf fertilizer can increase the absorbing conversion rate of the paddy for selenium, has an excellent cadmium-impeding performance, is rich in nutrition and is easily absorbed. After the fertilizer is applied to the paddy, the selenium-rich cadmium-reducing efficiency of the leaf fertilizer is higher, the effect is stable and the yield of the paddy is high.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of rice planting fertilizers, in particular to a special selenium-enriched and cadmium-reduced foliar fertilizer for rice. [0003] 【Background technique】 [0004] Rice is one of the main grains in the world, and more than half of China's population takes rice as a staple food. The nutritional value and health quality indicators of rice are closely related to the health of the people. According to reports, the rate of pollutants in China's cultivated land soil points exceeding the standard is 19.1%, and the rate of cadmium exceeding the standard is 7.0%. Rice has the habit of enriching the heavy metal cadmium, and is the bulk cereal crop with the strongest ability to absorb cadmium. Cadmium is a non-essential element for the human body and has toxic effects on the human body, animals and plants. People will face the risk of chronic poisoning if they eat food with excessive cadmium content for a lon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/02C05G3/60
CPCC05B7/00C05G3/00C05G3/60C05C9/00C05D1/02C05D9/00C05D9/02C05F11/00
Inventor 黄太庆江泽普邢颖廖青梁潘霞
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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