Modified carbamide, micromolecule active organic matter and preparation method for modified carbamide

A technology for modifying urea and organic matter, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of failure to obtain the best technical effect, no detailed research, etc., to reduce volatilization, enhance absorption, and increase the effect of nitrogen fertilizer Effect

Active Publication Date: 2015-05-20
南京正美实农化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese patent 201110091760.4 discloses a urea additive prepared from peas, mung beans, and corn as raw materials, but no detailed research has been carried out, and a specific technical plan has been given, but the best technical effect has not been obtained. Therefore, it is necessary to conduct research on the urea additive. further research

Method used

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  • Modified carbamide, micromolecule active organic matter and preparation method for modified carbamide
  • Modified carbamide, micromolecule active organic matter and preparation method for modified carbamide
  • Modified carbamide, micromolecule active organic matter and preparation method for modified carbamide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A small molecule active organic matter, the preparation method of which is as follows:

[0043] Put 100kg of peas, 100kg of mung beans, and 100kg of corn into a large reaction tank, add 1800L (6 times the weight) of water at a temperature of 40°C and soak for 10 hours, stir and pulverize, and filter out the water to obtain the filter residue;

[0044] Add 2 times the weight of the phosphate buffer solution with a pH of 6 to the filter residue, add 1% of the weight of the filter residue to ferment for 2 days at room temperature, and stir the fermented product once a day;

[0045]After the fermentation is over, filter out the fermentation broth, pass the fermentation broth through a D-85 macroporous propionate-based weakly acidic cation exchange resin, elute with 5 times the column volume of water, and collect the 2 times and 3 times the amount of eluate that flows out , the eluate was adjusted to pH 6, concentrated and dried to obtain 3 kg of small molecule active organi...

Embodiment 2

[0051] A small molecule active organic matter, the preparation method of which is as follows:

[0052] Put 50kg of peas, 100kg of mung beans, and 100kg of corn into a large reaction tank, add 2500L (10 times the weight) of water at a temperature of 60°C and soak for 5 hours, stir and pulverize, and filter out the water to obtain a filter residue;

[0053] Add 1 times the weight of the phosphate buffer solution with a pH of 5 to the filter residue, add 1% of the weight of the filter residue to ferment at room temperature for 1 day, and stir the fermented product once a day;

[0054] After the fermentation is over, filter out the fermentation broth, pass the fermentation broth through a D-85 macroporous propionate-based weakly acidic cation exchange resin, elute with 5 times the column volume of water, and collect the 2 times and 3 times the amount of eluate that flows out , the eluate was adjusted to a pH value of 6, concentrated and dried to obtain 2.5 Kg of small molecule act...

Embodiment 3

[0056] A small molecule active organic matter, the preparation method of which is as follows:

[0057] Put 150kg of peas, 100kg of mung beans, and 50kg of corn into a large reaction tank, add 1500L (5 times the weight) of water at a temperature of 30°C and soak for 20 hours, stir and pulverize, and filter out the water to obtain a filter residue;

[0058] Add 2 times the weight of the phosphate buffer solution with a pH of 7 to the filter residue, add 1% of the weight of the filter residue to ferment for 5 days at room temperature, and stir the fermented product once a day;

[0059] After the fermentation is over, filter out the fermentation broth, pass the fermentation broth through a D-85 macroporous propionate-based weakly acidic cation exchange resin, elute with 5 times the column volume of water, and collect the 2 times and 3 times the amount of eluate that flows out , the eluate was adjusted to a pH value of 6, concentrated and dried to obtain 3.2 Kg of small molecule ac...

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PUM

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Abstract

The invention discloses a modified carbamide, a micromolecule active organic matter and a preparation method for the modified carbamide. The preparation method comprises the following steps: taking pea, mung bean and corn of which the weight ratio is (1-3) : (1-3) : (1-3), adding water of which the weight is 5-10 times of total weight of the pea, the mung bean and the corn, soaking for 5-20 hours at the temperature of 30-60 DEG C, stirring, smashing and filtering out moisture to obtain filter residue; adding a pH buffer solution of which the pH value is 5-7 and the weight is 1-2 times of that of the filter residue into the filter residue, adding yeast, and fermenting for 1-5 days; filtering out a fermentation liquor when the fermentation is finished, passing the fermentation liquor through cation exchange resin, eluting with water of which volume is 5 times of that of the columns, collecting two times and three times amount of an excurrent eluant, adjusting the pH of the eluant to be 5-7, and conducting concentration and drying. According to the preparation method, carbamide absorption of plants can be improved, no side effect exists, moreover the utilization ratio of the carbamide is improved, and crops can grow robustly.

Description

technical field [0001] The invention belongs to the field of crop fertilizers, and in particular relates to modified urea containing small molecule active organic matter, the small molecule active organic matter and a preparation method thereof. The modified urea is suitable for various crops such as rice, wheat, corn, rapeseed and vegetables. Background technique [0002] The appearance of urea is usually white crystal or powder, and it is the first organic compound obtained by artificially synthesizing inorganic substances. Urea is generally used as nitrogen fertilizer for plants. It is the fertilizer with the highest nitrogen content in nitrogen fertilizer and is a neutral quick-acting fertilizer. Urea is an organic nitrogen fertilizer. After it is applied to the soil, a small part dissolves in the soil solution in a molecular state and is absorbed by the soil through hydrogen bonding. The rest is hydrolyzed into ammonium carbonate or ammonium bicarbonate under the actio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/08C05G3/00C05G3/90
Inventor 程网英李永丰马宁远夏贤瑛
Owner 南京正美实农化有限公司
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