Special high-efficiency stable green ammonium nitrogen fertilizer for black soil and preparation method thereof

A technology of ammonium nitrogen fertilizer and stability, which is applied to the field of high-efficiency and stable green ammonium nitrogen fertilizer and preparation of black soil, can solve the problems of greatly different effects and unstable stable fertilizers, and achieves the improvement of potassium absorption rate and improved absorption. Utilization effect, effect of promoting crop growth

Pending Publication Date: 2021-03-30
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current improvement technology is to add some biochemical inhibitors, but the effectiveness of different nitrogen fertilizers, especially nitrogen fertilizers with different stability, in different types of soils is completely different, and some effects are even the same as ordinary nitrogen fertilizers. This is mainly due to the different In addition to the different effects of different biochemical inhibitors on different fertilizers, different biochemical inhibitors have different effects on soils with different types of soil or different physical and chemical properties (soil texture, soil pores, soil organic matter, pH, etc.). large, showing different nitrification inhibition effects, and some even completely opposite. The same stable nitrogen fertilizer cannot be applied to all types of soils, and the existing stable nitrogen fertilizers have not considered different types at all in the process of technical research and development. The influence of soil properties on the effect of biochemical inhibitors only considers the characteristics of nitrogen fertilizer itself, and only selects biochemical inhibitors from the chemical properties of nitrogen fertilizer itself and its transformation characteristics in soil. Science is also absurd. Without the support of scientific theory, stable fertilizers are unstable in most soils, and then there is no basis to find and corresponding enlightenment for the specific environment through what kind of action substances are mixed. Therefore, special-purpose fertilizers developed for different soils Efficient and stable nitrogen fertilizer is the development trend of stable nitrogen fertilizer in the future, and it is also a key technology for the research and development of nitrogen fertilizer industry

Method used

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  • Special high-efficiency stable green ammonium nitrogen fertilizer for black soil and preparation method thereof
  • Special high-efficiency stable green ammonium nitrogen fertilizer for black soil and preparation method thereof
  • Special high-efficiency stable green ammonium nitrogen fertilizer for black soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Use agricultural ammonium chloride as nitrogen source to prepare high-efficiency and stable green ammonium nitrogen fertilizer. Wet powder.

[0029] Preparation:

[0030] 1) Preparation of suspension solution: Dissolve 1 part of CP(2-chloro-6(trichloromethyl)-pyridine wettable powder into 200ml aqueous solution, stir evenly to make suspension solution, and set aside.

[0031] 2) Utilize the fluidized bed coating technology, place the prepared suspension solution in the fluidized bed liquid tank, and simultaneously inject 100 parts of ammonium chloride particles containing 26% nitrogen into the spray tower from the fertilizer feed port for fluidization Then with the operation of the fluidized bed, the suspension solution is uniformly coated on the surface of the ammonium chloride particles by the atomizing nozzle through the flow controller, and finally a high-efficiency and stable green ammonium nitrogen fertilizer containing 25% nitrogen is obtained. The operating pa...

Embodiment 2

[0033] Use agricultural ammonium sulfate as nitrogen source to prepare high-efficiency and stable green ammonium nitrogen fertilizer. ; Ammonium sulfate powder contains 20.5% nitrogen.

[0034] Preparation:

[0035] Inject 100 parts of ammonium sulfate powder containing 20.5% nitrogen into the fertilizer mixing tank from the fertilizer inlet, and then sprinkle 1 part of CP (2-chloro-6 (trichloromethyl)-pyridine in the fertilizer mixing tank, Start the agitator to stir, when the ammonium sulfate and CP are evenly stirred (about 15 minutes), lift them to the feed inlet of the extruder through the bucket elevator, and carry out extrusion granulation to obtain nitrogen-containing granules with a particle size of 2.5-4.8mm 20% high-efficiency and stable green ammonium nitrogen granular nitrogen fertilizer.

Embodiment 3

[0037]Use ammonium sulfate as nitrogen source to prepare high-efficiency and stable green ammonium nitrogen fertilizer. The raw materials are: based on 100 parts of ammonium sulfate powder, 1 part of CP (2-chloro-6 (trichloromethyl)-pyridine and DMPP (3,4-dimethylpyrazole phosphate) mixture, the ratio of the mixture is 1:1 by mass and number; wherein the ammonium sulfate powder contains 20.5% nitrogen.

[0038] Preparation:

[0039] 1) Prepare a mixed nitrification inhibitor: mix 1 part of CP (2-chloro-6 (trichloromethyl)-pyridine) with 1 part of DMPP (3,4-dimethylpyrazole phosphate), stir, and stir well for later use.

[0040] 2) Add 100 parts of ammonium sulfate powder containing 20.5% nitrogen into the fertilizer mixing tank, add the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mix with the ammonium sulfate powder, and stir, and stir evenly , through the bucket elevator to the feed inlet of the extruder, extruding and granulating to produce a hi...

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Abstract

The invention relates to an efficient and stable green ammonium nitrogen fertilizer material, in particular to an efficient and stable green ammonium nitrogen fertilizer suitable for black soil and apreparation method thereof. The weight part ratio of the ammonium nitrogen fertilizer to the biochemical inhibitor is 1: 0.0003-0.1; the biochemical inhibitor is CP or a combination of CP and any biochemical inhibitor; any one of the biochemical inhibitors is one of NH4-B, N-guard, DMPP, DCD, CMP, AM and MP. Compared with the production of similar urea fertilizer products, the production cost is low, the fertilizer can be directly absorbed and utilized by crops after entering the soil, nitrogen nutrients are easily fixed in the soil to reduce loss, and the cost is the lowest in the similar fertilizers. The coated fertilizer with relatively short fertilizer efficiency period can be completely replaced in effective time.

Description

technical field [0001] The invention relates to a high-efficiency and stable green ammonium nitrogen fertilizer, in particular to a high-efficiency and stable green ammonium nitrogen fertilizer suitable for black soil and a preparation method. Background technique [0002] Black soil is the main type of soil in my country. Black soil areas are the main grain production areas in my country. Commodity grains account for more than 85% of grain production. The amount of nitrogen fertilizer, especially ammonium nitrogen fertilizer, is large. At present, the soil degradation in black soil areas is serious, and the grain production capacity has dropped significantly. In order to protect and improve the quality of black soil cultivated land, increase food production capacity, reduce environmental pollution, reduce the waste of nitrogen fertilizer resources, and improve the utilization rate of nitrogen fertilizer in black soil areas, it is imminent to develop a special, low-cost, high-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/40C05G3/90C05G5/12C05G5/30
CPCC05G3/40C05G3/90C05C3/00C05G5/12C05G5/30Y02P60/21
Inventor 李东坡油伦成武志杰宫平
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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