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Preparation for reducing arsenic content in rice grains and preparing method and application method thereof

A technology for rice grains and preparations, applied in the directions of botanical equipment and methods, applications, biocides, etc., can solve the problems of affecting the yield of rice, increase the difficulty of operation, difficult to grasp, etc., and achieves the promotion of rice growth, no toxic and side effects, and low cost. Effect

Active Publication Date: 2017-08-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: for rice, selenium is a trace element within a certain concentration range, which is beneficial to the growth of rice, but when it exceeds a certain concentration, it becomes a harmful element, which inhibits the growth of rice and affects the yield of rice. As far as it is concerned, it is difficult to grasp and increase the difficulty of operation

Method used

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  • Preparation for reducing arsenic content in rice grains and preparing method and application method thereof
  • Preparation for reducing arsenic content in rice grains and preparing method and application method thereof
  • Preparation for reducing arsenic content in rice grains and preparing method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The composition and production process of the preparation for reducing mercury content in rice grains are as follows: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, and add 20g / L, L-selenomethionine 25g / L, cystathionine 40g / L, mannitol chelated calcium 150g / L, potassium pyrophosphate 100g / L, ethoxylated polytrisiloxane 5g / L And polyaspartic acid 15g / L, after adding each component, react at constant temperature (50-60°C) for 30min; until polyaspartic acid as the last component is added, react at constant temperature at 50-60°C for 30min.

[0036] After all components are added, the reaction product is cooled, filtered (through a 2500-mesh filter), sterilized (heated at 121°C for 20 minutes), and filled to obtain the finished product.

[0037] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width) × 0.4m (height)] was built with cement. The soil used was co...

Embodiment 2

[0044] The composition and production process of the preparation for reducing mercury content in rice grains are as follows: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, and add 25g / L, L-selenomethionine 23g / L, cystathionine 50g / L, mannitol chelated calcium 200g / L, potassium pyrophosphate 150g / L, ethoxylated polytrisiloxane 7.5g / L L and polyaspartic acid 15g / L, after adding each component, react at constant temperature for 30min. After adding polyaspartic acid as the last component, react at a constant temperature of 50-60° C. for 30 minutes.

[0045] After all components are added, the reaction product is cooled, filtered (through a 2500-mesh filter), sterilized (heated at 121°C for 20 minutes), and filled to obtain the finished product.

[0046] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width) × 0.4m (height)] was built with cement. The soil used was ...

Embodiment 3

[0053] The composition and production process of the preparation for reducing mercury content in rice grains are as follows: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, and add 22g / L, L-selenomethionine 25g / L, cystathionine 45g / L, mannitol chelated calcium 175g / L, potassium pyrophosphate 125g / L, ethoxylated polytrisiloxane 10g / L and polyaspartic acid 10g / L, each component was added and reacted at a constant temperature for 30 minutes; until the last component of polyaspartic acid was added, it was reacted at a constant temperature of 50-60°C for 30 minutes.

[0054] After all components are added, the reaction product is cooled, filtered (through a 2500-mesh filter), sterilized (heated at 121°C for 20 minutes), and filled to obtain the finished product.

[0055] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width) × 0.4m (height)] was built with cement. The...

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Abstract

The invention discloses a preparation for reducing the arsenic content in rice grains. The preparation is prepared from, by weight, 20-25 g of S-methyl-L-cysteine, 20-25 g of L-selenomethionine, 40-50 g of cystathionine, 150-200 g of mannitol chelated calcium, 100-150 g of potassium pyrophosphate, 5-10 g of ethoxy modified trisiloxane and 10-15 g of polyaspartic acid. The invention further discloses a preparing method of the preparation for reducing the arsenic content in the rice grains. An application method of the preparation comprises the steps that the preparation is applied in the following six periods respectively, and the six periods comprise the stage of soil preparation before rice transplanting, one month after transplanting, the first day to the tenth day in rice seedling stage, the first day to the seventh day in rice tillering stage, the first day to the seventh day in rice flowering stage and the first day to the seventh day in rice filling stage.

Description

technical field [0001] The invention belongs to the technical field of agricultural product safety, and relates to a preparation for reducing mercury content in rice grains planted on medium-light mercury-polluted soil to realize food safety and its usage. Background technique [0002] The situation of heavy metal pollution in soil in my country is serious, which has seriously affected the quality of agricultural products and food safety. The "National Soil Pollution Survey Bulletin" jointly issued by the Ministry of Environmental Protection and the Ministry of Land and Resources on April 17, 2014 shows that the total soil point exceeding the standard rate in the country is 16.1%, and the rate of cultivated land soil point exceeding the standard is as high as 19.4%. Among the 8 kinds of inorganic pollutants investigated, arsenic's point-exceeding rate ranked third respectively, and it is a heavy metal pollutant that needs to be paid attention to. [0003] Soil arsenic pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/26A01N55/00A01N55/10A01N37/44A01N37/46A01N31/02A01P21/00
CPCA01N31/02A01N37/44A01N37/46A01N55/00A01N59/26A01N2300/00
Inventor 谢晓梅廖敏廖泽淇
Owner ZHEJIANG UNIV
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