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Inorganic and organic composite selenium fertilizer and process for producing the same

An inorganic and selenium fertilizer technology, applied in organic fertilizers, urea compound fertilizers, nitrogen fertilizers, etc., can solve problems such as inhibiting selenium absorption

Inactive Publication Date: 2006-04-19
李强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 4. Abundance and deficiency critical value of selenium element
But superphosphate contains (SO 4 -2 ), may inhibit plant uptake of selenium

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The present invention will be further described below with specific examples.

[0038] Configuration example of organic-inorganic compound selenium fertilizer:

[0039] 1. Example of special fertilizer formula for field crops (nitrogen: phosphorus: potassium = 18:6:6)

[0040] Long-acting urea 360Kg

[0041] Monoammonium Phosphate 130Kg

[0042] Potassium chloride 100Kg

[0043] Superphosphate 50Kg

[0044] Lignite powder 350Kg

[0045] Diatomaceous earth 50Kg

[0046] Selenium fertilizer 0.1-0.3Kg

[0047] 2. Example of fertilizer formula for vegetables (nitrogen: phosphorus: potassium = 16:5:9)

[0048] Long-acting urea 330Kg

[0049] Monoammonium Phosphate 120Kg

[0050] Potassium sulfate 100Kg

[0051] Potassium chloride 60Kg

[0052] Superphosphate 50Kg

[0053] Lignite powder 350Kg

[0054] Diatomaceous earth 30Kg

[0055] Selenium fertilizer 0.2-0.4Kg

[0056] 3. Example of special fertilizer formula for fruit trees (nitrogen: phosphorus: potassium...

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PUM

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Abstract

The organic, inorganic and selenium fertilizer contains humic acid and other organic fertilizer components 10-20 wt%, N, P, K and other inorganic fertilizer components 25-32 wt% and selenium fertilizer component 0.1-0.4 wt%. The P fertilizer has no S base and K fertilizer is preferably Cl base and this is favorable to the absorption of selenium fertilizer. The fertilizer has delayed releasing or long acting urea, rather than common urea for high utilization of N fertilizer. The production process includes one-step granulation and stoving, while controlling humidity and temperature to prevent agglomeration and formation of biuret. Or, organic composite fertilizer containing Se, P and K is first produced and then compounded with long-acting urea to form the composite long-acting organic, inorganic and selenium fertilizer.

Description

technical field [0001] The invention provides a compound selenium fertilizer, in particular an organic-inorganic compound selenium fertilizer. [0002] The invention also provides a preparation method of the above-mentioned compound selenium fertilizer. Background technique [0003] Selenium is a non-essential nutrient element for crops, but if humans and animals lack this element, endemic diseases will appear and damage the health of humans and animals. [0004] 1. Selenium and human health [0005] Years of research by endemic disease experts from all over the world have concluded that selenium deficiency is present in more than 40 countries and regions in Asia, Europe, Africa, South America, and North America. Currently known human diseases related to selenium deficiency include: Keshan disease, hypertension, coronary heart disease, dilated cardiomyopathy, gastric cancer, colon cancer, liver cancer, pancreatic cancer, hemolytic anemia, etc. Dozens. Animal selenium defi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05G3/00C05G5/00C05F11/02C05D9/02C05C9/00
Inventor 张志明李建华李荣华
Owner 李强