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Potassium humate selenium-rich compound fertilizer and preparation method thereof

A technology of potassium humate and compound fertilizer, which is applied in the direction of ammonium orthophosphate fertilizer, alkaline orthophosphate fertilizer, phosphate fertilizer, etc., and can solve the problems of potassium fertilizer being easily fixed by soil, the utilization rate of dehydration fertilizer, and the duration of low fertilizer efficiency, etc. , to achieve good film-forming performance and biodegradability, which is beneficial to environmental protection and ensures the effect of activity

Inactive Publication Date: 2019-11-12
拉多美(宁陵)化肥有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to aim at the deficiencies in the prior art, provide a kind of potassium humate selenium-enriched compound fertilizer and preparation method, utilize the potassium humate selenium-enriched compound fertilizer prepared by the method of the inner and outer envelopes of the present invention to provide crops It also solves the problem that nitrogen, phosphorus and potassium fertilizers are easily fixed by the soil, the problem of low fertilizer utilization rate due to soil drought or easy loss of water, and the problem of short duration of fertilizer effect

Method used

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  • Potassium humate selenium-rich compound fertilizer and preparation method thereof
  • Potassium humate selenium-rich compound fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] A potassium humate selenium-enriched compound fertilizer. The raw material components include: 0.04 parts of sodium selenite, 200 parts of potassium humate, 60 parts of potassium chloride, 245 parts of biochar, 280 parts of urea, phosphoric acid 80 parts of hydrogen diamine, 70 parts of dipotassium hydrogen phosphate, 9 parts of inner coating agent, 16 parts of outer coating agent, 5 parts of sodium nitrophenolate, 8 parts of medium and trace elements, and 7 parts of microbial agent.

[0032] The potassium content of the potassium humate is 20%-30%, and the humic acid content of the potassium humate is 55%-65% on a dry basis.

[0033] The potassium oxide content of the potassium chloride is 50%-58%.

[0034] The potassium oxide content of the dipotassium hydrogen phosphate is 32%-34%, and the phosphorus pentoxide content is 45%-50%.

[0035]The nitrogen content of the diammonium hydrogen phosphate is 15%-20%, and the content of phosphorus pentoxide is 45%-49%.

[0036...

Embodiment 2

[0050] A potassium humate selenium-enriched compound fertilizer. The raw material components include: 0.05 parts of sodium selenite, 190 parts of potassium humate, 70 parts of potassium chloride, 260 parts of biochar, 330 parts of urea, and phosphoric acid in parts by weight. 60 parts of hydrogen diamine, 45 parts of dipotassium hydrogen phosphate, 8 parts of inner coating agent, 17 parts of outer coating agent, 6 parts of sodium nitrophenolate, 7 parts of medium and trace elements, and 7 parts of microbial agent.

[0051] The potassium content of the potassium humate is 20%-30%, and the humic acid content of the potassium humate is 55%-65% on a dry basis.

[0052] The potassium oxide content of the potassium chloride is 50%-58%.

[0053] The potassium oxide content of the dipotassium hydrogen phosphate is 32%-34%, and the phosphorus pentoxide content is 45%-50%.

[0054] The nitrogen content of the diammonium hydrogen phosphate is 15%-20%, and the content of phosphorus pento...

Embodiment 3

[0069] A potassium humate selenium-enriched compound fertilizer. The raw material components include: 0.05 parts of sodium selenite, 190 parts of potassium humate, 70 parts of potassium chloride, 260 parts of biochar, 330 parts of urea, and phosphoric acid in parts by weight. 60 parts of hydrogen diamine, 45 parts of dipotassium hydrogen phosphate, 8 parts of inner coating agent, 17 parts of outer coating agent, 5 parts of sodium nitrophenolate, 8 parts of medium and trace elements, and 7 parts of microbial agent.

[0070] The potassium content of the potassium humate is 20%-30%, and the humic acid content of the potassium humate is 55%-65% on a dry basis.

[0071] The potassium oxide content of the potassium chloride is 50%-58%.

[0072] The potassium oxide content of the dipotassium hydrogen phosphate is 32%-34%, and the phosphorus pentoxide content is 45%-50%.

[0073] The nitrogen content of the diammonium hydrogen phosphate is 15%-20%, and the content of phosphorus pento...

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Abstract

The invention provides a potassium humate selenium-rich compound fertilizer. Raw materials of the compound fertilizer include sodium selenite, potassium humate, potassium chloride, selenium-rich biomass carbon, urea, diammonium hydrogen phosphate, dipotassium hydrogen phosphate, an inner coating agent, an outer coating agent, compound sodium nitrophenolate, medium and trace elements and a microbial agent. The invention further provides a preparation method of the compound fertilizer. The method includes preparing a fertilizer core of the compound fertilizer, performing primary coating, and performing secondary coating. The compound fertilizer adopts a double-layer coating manner with the inner and outer coating agents, achieves effects of slow release, controlled release, water retention and fertilizer retention, and long-lasting fertilizer effects. The compound fertilizer has a function of freeing nitrogen, phosphorus and potassium immobilized in soil by utilizing active microbes, thus solving a problem that fertilizers are low in utilization efficiency. A proper amount of the selenium is provided for crops, enhancing disease resistance of the crops.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a potassium humate-enriched selenium compound fertilizer and a preparation method thereof. Background technique [0002] Selenium is an essential trace element for human life. The Chinese Nutrition Society recommends that the human body supplement 50-250 μg of selenium daily. However, according to the census, the per capita daily selenium intake in my country is only 36 μg, which is far below the standard. Therefore, selenium-enriched The development of the food industry has an excellent prospect. [0003] However, selenium is a nutrient with side effects, and its safety range is relatively narrow. It is difficult to control the selenium content of artificially transformed selenium-enriched agricultural products, and the investment is large. There is potential pollution to the environment, which inhibits the development of the selenium-enriched food industry. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/00
CPCC05B7/00C05G3/00
Inventor 王晓春罗冬贵蒋振华刘仁军林伟荣
Owner 拉多美(宁陵)化肥有限公司
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