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Value-added humic acid urea and preparation method thereof

A humic acid and urea technology, applied in fertilizer mixtures, fertilization devices, applications, etc., to maintain the balance of the flora, enhance soil fertility, and increase supply

Active Publication Date: 2014-04-02
CNSG ANHUI HONG SIFANG FERTILIZER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is no method that can not only improve nitrogen fertilizer and water use efficiency, reduce environmental pollution, but also promote crop nutrition balance, eliminate field weeds, promote crop growth, reduce crop disease occurrence, increase yield, improve agricultural product quality, improve soil fertility, improve and synergistic nitrogen fertilizers for soil repair

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Containing N≥43% value-added humic acid urea, the specific process steps are as follows:

[0041] (1) Between the first evaporation and the second evaporation of the urea production process, the plunger metering pump is used to accurately add brown humic acid to prepare humic acid type urea (N-46.1%, humic acid-0.15%).

[0042] (2) Send 94.17kg of humic acid-type urea into the drum coating machine, use the plunger metering pump to spray 1.92kg of viscous oil agent in the drum coating machine through the atomizing nozzle, and the weight ratio of the two substances of viscous oil agent Tung oil: rosin = 1.0:0.3, and then use the screw conveyor to sequentially coat 1.03kg of water-retaining agent, 1.62kg of zinc sulfide, 0.77kg of growth-promoting agent, 0.11kg of additives, and 0.38kg of glyphosate on the particles Surface, drying and heat preservation at the same time.

[0043] (3) Cool the packaged particles for a period of time and coarsely and finely screen them. Aft...

Embodiment 2

[0045] Containing N≥42% value-added humic acid urea, the specific process steps are as follows:

[0046] (1) Between the first evaporation and the second evaporation of the urea production process, the plunger metering pump is used to accurately add fulvic acid to prepare humic acid-type urea (N-46.0%, humic acid-0.16%).

[0047] (2) Send 92.10 kg of humic acid urea into the fluidized bed coating machine, and use the plunger metering pump to spray 2.40 kg of viscous oil agent and viscous oil agent in the fluidized bed coating machine through the atomizing nozzle The weight ratio is tung oil: rosin = 1.0:0.5, and then use the screw conveyor to sequentially coat 1.70kg of water-retaining agent, 2.02kg of sulfur, 1.00kg of bioremediation agent, 0.18kg of additives, and 0.6kg of atrazine on the Particle surface, drying and heat preservation at the same time.

[0048] (3) Cool the packaged particles for a period of time and coarsely and finely screen them. After screening, the par...

Embodiment 3

[0050] Containing N≥40% value-added humic acid urea, the specific process steps are as follows:

[0051](1) Between the first stage evaporation and the second stage evaporation of the urea production process, the plunger metering pump is used to accurately add nitro humic acid to prepare humic acid type urea (N-46.2%, humic acid-0.14%).

[0052] (2) Send 87.27kg of humic acid-type urea into the drum coating machine, use the plunger metering pump to spray 4.46kg of viscous oil agent in the drum coating machine through the atomizing nozzle, and the weight ratio of the two substances of viscous oil agent Tung oil: rosin = 1.0:0.7, and then use the screw conveyor to sequentially bond and coat 2.27kg of water-retaining agent, 2.56kg of boric acid, 2.85kg of phosphorus-dissolving microbial agents, 0.39kg of additives, and 0.2kg of quinclorac On the surface of the particles, drying and heat preservation are carried out at the same time.

[0053] (3) Cool the packaged particles for a...

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Abstract

The invention discloses a value-added humic acid urea and a preparation method thereof. The value-added humic acid urea is characterized by comprising the following raw materials in parts by weight: 85-95 parts of humic acid urea, 1-4 parts of a water-retaining agent, 1-4 parts of medium trace elements, 0.3-3.0 parts of a microbial agent, 0.04-1.2 parts of herbicide, 0.5-5.0 parts of viscous oil and 0.1-0.5 parts of an additive. The value-added humic acid urea is drought-resistant, water-retaining, fertilizer-conserving, balanced in nutrients, controlled-release, weeded, environment-friendly, time-saving and labor-saving, low in cost and the like, both production and income are increased, the quality is improved, the soil fertility is enriched, and the soil is modified and repaired. The value-added humic acid urea can be applied to a plurality of soils and a plurality of crops in arid regions, semi-arid regions and seasonal drought regions as a base fertilizer or topdressing, and the value-added humic acid urea is simple in preparation technology, and convenient to produce and operate.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a value-added humic acid type urea and a preparation method thereof. Background technique [0002] Drought is the main problem faced by global dryland agriculture, and the shortage of water resources in the world makes irrigated agriculture also face the problem of water saving. my country is a country with very poor water resources, and the spatial and temporal distribution of water resources is extremely unbalanced, which limits the high-yield, efficient and sustainable development of agriculture. Moisture not only directly affects crop production, but also affects crop yield through the exertion of fertilizer efficiency. Fertilizer efficiency is inseparable from suitable soil moisture. The research on water-fertilizer interaction and coupling model provides scientific control measures for the best benefit of water and fertilizer. Water-retaining agent can absorb and maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 束维正谢中平陈勇樊荣琦刘洪滨刘晓晖王莉陈国庆郑兴来
Owner CNSG ANHUI HONG SIFANG FERTILIZER IND CO LTD
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