Low-temperature-resistant compound fertilizer absorbed by stages and preparation method of low-temperature-resistant compound fertilizer

A compound fertilizer and low-temperature-resistant technology, which is applied in the cross field of chemicals and agricultural fertilizers, can solve the problems of affecting the absorption of fertilizers by plants, the occurrence of frozen soil, and volatilization loss, so as to reduce the freezing point, prevent sudden temperature drops, and promote absorption. Effect

Inactive Publication Date: 2019-08-30
湖北兴福电子材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used fertilizers such as urea on the market have a short effective period, and most of the organic nitrogen is volatilized and lost when it is conv...

Method used

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  • Low-temperature-resistant compound fertilizer absorbed by stages and preparation method of low-temperature-resistant compound fertilizer
  • Low-temperature-resistant compound fertilizer absorbed by stages and preparation method of low-temperature-resistant compound fertilizer
  • Low-temperature-resistant compound fertilizer absorbed by stages and preparation method of low-temperature-resistant compound fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0042] This embodiment provides a low temperature-resistant and segmented absorption compound fertilizer and its preparation method, specifically:

[0043] Described compound fertilizer is made up of polar organic solvent, urease inhibitor, water, inorganic salt fertilizer and urea,

[0044] Wherein, the polar organic solvent in the compound fertilizer is dimethylsulfoxide (DMSO), and the number of additions is 10kg;

[0045] The urease inhibitor is n-butylthiophosphoric triamide (NBPT) in the phosphate amine compound, and the number of added parts is 5kg;

[0046] The inorganic salt fertilizers are zinc sulfate, ammonium molybdate, manganese sulfate, ferrous sulfate, copper sulfate, and borax, and the added parts are 0.2kg respectively;

[0047] The amount of water added is 100kg

[0048] The number of additions of the urea is 100kg.

[0049] The preparation method comprises the following specific steps:

[0050] (1) Step 1: according to the above parts by weight, take resp...

Embodiment 2

[0057] This embodiment provides a low temperature-resistant and segmented absorption compound fertilizer and its preparation method, specifically:

[0058] Described compound fertilizer is made up of polar organic solvent, urease inhibitor, water, inorganic salt fertilizer and urea,

[0059] Wherein, the polar organic solvent in the compound fertilizer is dimethylsulfoxide (DMSO), and the number of additions is 10kg;

[0060] The urease inhibitor is phenylphosphoric diamide (PPD) in the phosphate amine compound, and the number of added parts is 5kg;

[0061] The inorganic salt fertilizers are zinc sulfate, ammonium molybdate, manganese sulfate, ferrous sulfate, copper sulfate, and borax, and the added parts are 0.2kg respectively;

[0062] The amount of water added is 100kg

[0063] The number of additions of the urea is 100kg.

[0064] The preparation method comprises the following specific steps:

[0065] (1) Step 1: according to the above-mentioned parts by weight, take...

Embodiment 3

[0072] This embodiment provides a low temperature-resistant and segmented absorption compound fertilizer and its preparation method, specifically:

[0073] Described compound fertilizer is made up of polar organic solvent, urease inhibitor, water, inorganic salt fertilizer and urea,

[0074] Wherein, the polar organic solvent in the compound fertilizer is trifluoroacetic acid, and the number of additions is 10kg;

[0075] The urease inhibitor is n-butylthiophosphoric triamide (NBPT) in the phosphate amine compound, and the number of added parts is 5kg;

[0076] The inorganic salt fertilizers are zinc sulfate, ammonium molybdate, manganese sulfate, ferrous sulfate, copper sulfate, and borax, and the added parts are 0.2kg respectively;

[0077] The amount of water added is 100kg

[0078] The number of additions of the urea is 100kg.

[0079] The preparation method comprises the following specific steps:

[0080] (1) Step 1: according to the above-mentioned parts by weight, t...

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Abstract

The invention discloses a low-temperature-resistant compound fertilizer absorbed by stages and a preparation method of the low-temperature-resistant compound fertilizer. The compound fertilizer comprises a polar organic solvent, a urease inhibitor, water, an inorganic salt fertilizer and urea. The preparation method of the low-temperature-resistant compound fertilizer comprises the steps: adding the urease inhibitor into the polar organic solvent, and carrying out uniform stirring to obtain a mixed liquid; and adding the water, the inorganic salt fertilizer and the urea into the prepared mixedliquid, and carrying out uniform stirring. In the preparation method, the water is firstly added into the organic solvent to play a role in reducing a solidifying point, so that the problems of fertilizer separation and mixing nonuniformity caused by sudden temperature drop resulted from heat absorption when the urea is added are effectively avoided. The compound fertilizer can be conveniently and rapidly compounded, and the components including the inorganic salt fertilizer and the urea can be dissolved to the maximum extent.

Description

technical field [0001] The invention relates to the cross-technical field of chemicals and agricultural fertilizers, in particular to a low-temperature resistant segmented absorption compound fertilizer and a preparation method thereof used as a sprayed plant fertilizer. Background technique [0002] As a country with a long history of farming, China has a tireless pursuit of high crop yields. Large populations, reduced arable land, and land infertility and overuse underscore the importance of high crop yields. On the one hand, the high yield of crops depends on variety improvement; on the other hand, it depends more on the improvement of soil quality and the improvement of plant nutrient absorption efficiency. In terms of the amount of fertilizer used, China has been ranked first in the world for more than 30 years, but in terms of productivity, it is seriously behind developed countries such as the United States, and even developing countries such as India and Brazil. Th...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/00C05G3/90
CPCC05C3/00C05G3/00C05G5/23C05G3/90
Inventor 李少平张演哲贺兆波张庭蔡步林万杨阳王书萍冯凯尹印
Owner 湖北兴福电子材料股份有限公司
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