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Selenium-iron-zinc-enriched organic-inorganic fertilizer and application method thereof

A technology of inorganic fertilizers and organic fertilizers, applied in fertilization methods, fertilizer mixtures, applications, etc., can solve the problems of increasing fertilizer costs, limited selenium intake, large selenium consumption, etc., to promote nutrient absorption rate and improve nutrient utilization rate , Improve the effect of rice quality

Active Publication Date: 2012-06-20
广东海纳肥业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the Chinese dietary structure results in limited selenium intake
More importantly, in the 4th to 11th examples in which the above-mentioned fertilizers were applied to make the rice produced meet the national standard for selenium-enriched rice, the amount of selenium in the fertilizers used throughout the growing season of rice reached 8000~ 54545 mg / mu, the amount of selenium is still relatively large, high concentration of selenium fertilizer increases the cost of fertilizer, and because selenium is toxic, excessive selenium pollutes the runoff water and soil in the field, and is a great waste

Method used

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  • Selenium-iron-zinc-enriched organic-inorganic fertilizer and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The present embodiment selenium-rich iron-zinc organic inorganic fertilizer contains by weight: 0.006 part of ammonium selenite, 4 parts of ferrous sulfate, 1 part of zinc sulfate, 0.04 part of polyaspartic acid, 17.2 parts of urea, 10 parts of monoammonium phosphate and 6 parts of superphosphate, 10 parts of potassium chloride, 45 parts of decomposed cow dung through industrial fermentation, 5 parts of sodium silicate, and 6.794 parts of attapulgite.

[0062] The weight percentage of each component is: organic matter 20%, pure nitrogen (N) 9%, phosphorus (in P 2 o 5 ) 5%, Potassium (in K 2 O) 6%, selenium (calculated as Se) 0.002%, iron (calculated as Fe) 0.68%, zinc (calculated as Zn) 0.2%, and selenium-rich iron-zinc organic inorganic fertilizer is made by pellet method. The original granulation process is adopted, and its equipment and process are the same as those for the production of chemical fertilizers and organic and inorganic fertilizers by the existing gra...

Embodiment 2

[0076] In the present embodiment selenium-rich iron-zinc organic and inorganic fertilizer, contain by weight: 0.004 part of sodium selenite, 5 parts of sodium ferric edetate, 0.25 part of zinc oxide, 3.6 parts of ammonium chloride, 20.4 parts of urea, phosphoric acid 5 parts of diammonium and 8.5 parts of superphosphate, 13 parts of potassium chloride and 3.8 parts of potassium dihydrogen phosphate, 0.03 parts of potassium polyaspartate and 0.03 parts of sodium polyaspartate, chicken manure decomposed by industrial fermentation 36 parts, 5 parts of rice husk ash.

[0077] The weight percentage of each component is: organic matter 20%, pure nitrogen (N) 11%, phosphorus (in P 2 o 5 ) 5%, Potassium (in K 2 O) 9%, Selenium (Se) 0.003%, Iron (Fe) 0.625%, Zinc (Zn) 0.18%, Selenium-rich Fe-Zn Organic Inorganic Fertilizer is made by slurry method.

[0078] Preparation:

[0079] The original slurry method granulation process is adopted, and its equipment and technology are the same...

Embodiment 3

[0091] In the present embodiment selenium-rich ferric organic inorganic fertilizer, contain by weight: 0.008 part of potassium selenite, 3 parts of ferrous sulfate, 0.5 part of zinc sulfate, 16 parts of urea and 14.6 parts of ammonium chloride, 12 parts of monoammonium phosphate, 10.5 parts of potassium chloride and 1.8 parts of dipotassium hydrogen phosphate, 0.05 parts of ammonium polyaspartate, 24.5 parts of decomposed pig manure and 10 parts of chicken manure after industrial fermentation, 4 parts of potassium silicate and 3.4 parts of fly ash, Attapulgite 3.192 parts.

[0092] The above substances contain by weight percentage: 20% organic matter, 12% pure nitrogen (N), phosphorus (in terms of P 2 o 5 count) 6%, Potassium (in K 2 O) 7%, Selenium (Se) 0.006%, Iron (Fe) 0.51%, Zinc (Zn) 0.1%, Selenium-enriched Fe-Zn Organic Inorganic Fertilizer is made by granulation method.

[0093] At the same time, according to the same nutrient ratio of nitrogen, phosphorus and potass...

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Abstract

The invention relates to a fertilizer formula and an application method of the fertilizer. The selenium-iron-zinc-enriched organic-inorganic fertilizer for producing selenium-iron-zinc-enriched rice is prepared by granulating proportionally mixed selenite, ferrite, zinc salt, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, polyaspartic acid or other salts, decomposed organic fertilizer and silicon fertilizer. The fertilizer is applied to the field as a base fertilizer or supplementary fertilizer 1-4 times. The fertilizer can simultaneously provide selenium, iron and zinc and other nutrient reinforcing substances required by growth of crops. The fertilizer is beneficial to growth of the crops, enhances the absorptivity and conversion rate of selenium, iron and zinc, and can produce selenium-iron-zinc-enriched rice satisfying the Food Standard.

Description

technical field [0001] The invention relates to a fertilizer, in particular to a fertilizer for producing selenium-rich iron-zinc rice, and also relates to an application method of the fertilizer. Background technique [0002] Selenium is an essential trace element for humans and animals. It is an antioxidant that can relieve aging and eliminate a variety of harmful free radicals. Its synergistic effect with vitamin E is called the "golden partner" of anti-oxidation. As the only specific micronutrient (selenocysteine, the 21st amino acid) in the human genome, its importance has been demonstrated (Rayman, M P. 2002, The argument for increasing selenium intake. Proceeding of the Nutrition Society, 61: 203-215). Selenium deficiency will lead to the decline of human immunity, which will lead to the occurrence of Keshan disease and Kaschin-Beck disease. Severe selenium deficiency will lead to more than 40 kinds of diseases, such as coronary heart disease, hemolytic anemia and li...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04A01C21/00C05G3/80
Inventor 王一明林先贵钟振芳束中立
Owner 广东海纳肥业有限公司
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