CN112573966A - Efficient and stable green ammonium nitrogen fertilizer special for black soil and preparation method thereof - Google Patents

Efficient and stable green ammonium nitrogen fertilizer special for black soil and preparation method thereof Download PDF

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CN112573966A
CN112573966A CN202011589638.5A CN202011589638A CN112573966A CN 112573966 A CN112573966 A CN 112573966A CN 202011589638 A CN202011589638 A CN 202011589638A CN 112573966 A CN112573966 A CN 112573966A
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fertilizer
nitrogen fertilizer
ammonium nitrogen
ammonium
black soil
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李东坡
油伦成
武志杰
宫平
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Institute of Applied Ecology of CAS
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/30—Layered or coated, e.g. dust-preventing coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
    • Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pest Control & Pesticides (AREA)
  • Soil Sciences (AREA)
  • Fertilizers (AREA)

Abstract

The invention relates to a high-efficiency stable green ammonium nitrogen fertilizer, in particular to a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil and a preparation method thereof. 1, by weight: 0.0003-0.1 of ammonium nitrogen fertilizer and biochemical inhibitor; the biochemical inhibitor is CP or the combination of CP and any one biochemical inhibitor; wherein any one of the biochemical inhibitors is NH4-B, N-guard, DMPP, DCD, CMP, AM, MP. Compared with the production of the same urea fertilizer product, the invention has the advantages of low production cost, direct absorption and utilization of crops after the fertilizer enters the soil, easy fixation of nitrogen nutrients in the soil, reduction of loss and lowest cost in the same fertilizer. Can completely replace fertilizer in effective timeCoated fertilizers having a relatively short shelf life.

Description

Efficient and stable green ammonium nitrogen fertilizer special for black soil and preparation method thereof
Technical Field
The invention relates to a high-efficiency stable green ammonium nitrogen fertilizer, in particular to a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil and a preparation method thereof.
Background
The black soil is the main type soil in China, the black soil area is the main grain producing area in China, the commercial grain accounts for more than 85% of the grain yield, the nitrogen fertilizer consumption is large, especially the ammonium nitrogen fertilizer consumption is large, the soil degradation in the black soil area is serious at present, the grain production capacity is obviously reduced, in order to protect and improve the black soil cultivated land quality, the grain productivity is improved, the environmental pollution is reduced, the nitrogen fertilizer resource waste is reduced, the nitrogen fertilizer utilization rate in the black soil area is improved, the ammonium nitrogen fertilizer is urgently developed aiming at the black soil in China, the cost is low, the efficient and stable ammonium nitrogen fertilizer is highly effective, and meanwhile, the technological support is provided for the industrial development and the technical improvement of the ammonium nitrogen.
At present, ammonium nitrogen fertilizer is widely used, which accounts for more than 24% of the total amount of agricultural nitrogen fertilizer, and especially, the application amount of ammonium chloride, ammonium sulfate and ammonium bicarbonate is larger. The fertilizer is used in a large amount in the crop cultivation and compound fertilizer processing processes, some of the fertilizer needs the physiological characteristics and excellent quality of crops, and some of the fertilizer is used by farmers, but the currently applied ammonium nitrogen fertilizer is still a common ammonium nitrogen fertilizer, the nitrogen utilization rate of the fertilizer is very low, and sufficient attention is not paid to improving the performance of the part of the nitrogen fertilizer and improving the stability and the utilization rate of the fertilizer.
The existing 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 soil is completely different, and some effects are even the same as that of common nitrogen fertilizers, which is mainly because different biochemical inhibitors have different effects on different fertilizers, and different biochemical inhibitors have great difference in action effect in different types of soil or soils with different physicochemical properties (soil texture, soil pores, soil organic matters, pH value and the like) and show different nitrification inhibition effects, some are even completely opposite, the same stable nitrogen fertilizer cannot be applied to all types of soil, while the existing stable nitrogen fertilizer does not consider the influence of different types of soil properties on the effect of the biochemical inhibitors at all in the technical research and development process, and only considers the characteristics of the nitrogen fertilizer, the biochemical inhibitor is selected only from the chemical properties of the nitrogen fertilizer and the transformation characteristics in the soil, one fertilizer is applied to all soils, which is unscientific and paradoxical, and is not supported by scientific theories, so that the stable fertilizer is unstable in most soils, and the special efficient stable nitrogen fertilizer developed aiming at different soils is the development trend of the future stable nitrogen fertilizer and is also a key technology developed by the nitrogen fertilizer industry according to the fact that the mixture of action substances is suitable for a specific environment without the basis of searching and corresponding revelation.
Disclosure of Invention
The invention aims to provide an efficient and stable green ammonium nitrogen fertilizer suitable for black soil and a preparation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil comprises the following components in parts by weight: 0.0003-0.1 of ammonium nitrogen fertilizer and biochemical inhibitor; the biochemical inhibitor is CP or the combination of CP and any one biochemical inhibitor; wherein any one of the biochemical inhibitors is NH4-B, N-guard, DMPP, DCD, CMP, AM, MP.
The CP is combined with any one biochemical inhibitor according to the mass ratio of 0.00015-0.05: 0.0005-0.05.
The nitrification inhibitor CP (2-chloro-6 (trichloromethyl) -pyridine), NH4-B (complex nitrification inhibitor, AGRHO ammonia protection B), N-guard (complex nitrification inhibitor, available from some foreign company), DMPP (3, 4-dimethylpyrazole phosphate), DCD (dicyanodiamide), CMP (1-carbamyl-3-methylpyrazole), AM (2-amino-4-chloro-6-methylpyrimidine), MP (3-methylpyrazole).
The ammonium nitrogen fertilizer is solid or liquid fertilizer or chemical products used in agricultural production.
The ammonium nitrogen fertilizer is ammonium chloride, ammonium sulfate, ammonium bicarbonate, liquid ammonia (ammonia water), monoammonium phosphate or diammonium phosphate.
The pH value of the black soil is 5.8-10.
A process for preparing the efficient stable green ammonium nitrogen fertilizer suitable for black soil includes proportionally mixing ammonium nitrogen fertilizer with single or combined biochemical inhibitor, or mixing and granulating.
Uniformly spraying the single biochemical inhibitor or the combined biochemical inhibitor suspension solution on the surface of the granular ammonium nitrogen fertilizer raw material in a fluidized state through a fluidized bed according to the proportion or uniformly stirring the granular ammonium nitrogen fertilizer and the single biochemical inhibitor or the combined biochemical inhibitor mixture;
uniformly mixing the powdery ammonium nitrogen fertilizer raw material and a single biochemical inhibitor or a combined biochemical inhibitor according to the proportion, and granulating;
according to the proportion, the single biochemical inhibitor or the combined biochemical inhibitor is directly injected into the ammonium nitrogen fertilizer and mixed evenly after being mixed evenly; or mixing and granulating.
The fluidized bed is adopted for uniform spraying, the air inlet temperature in the fluidized bed is controlled within 60 ℃, the pressure of compressed air is 0.35-0.65 Pa, and the atomization pressure of a spray head is 0.05-0.15 Pa.
And adding one or more of phosphorus, potassium and trace elements into the ammonium nitrogen fertilizer, uniformly mixing, and mechanically granulating to obtain the special multi-element high-efficiency stable ammonium-based compound fertilizer for the black soil.
The invention has the following advantages:
1. the fertilizer is a high-efficiency stable green ammonium nitrogen fertilizer special for black soil with pH of 5.8-10, and is an optimal high-efficiency special stable ammonium nitrogen fertilizer for planting crops in black soil of a farmland with pH of 5.8-10. The high-efficiency nitrification inhibitor CP is independently combined with the ammonium nitrogen fertilizer or the high-efficiency nitrification inhibitor CP and NH4Any one nitrification inhibitor of-B, N-guard, DMPP, DCD, CMP, AM and MP is combined with the ammonium nitrogen fertilizer, and the high-efficiency stable green ammonium nitrogen fertilizer special for black soil is prepared by high-technology combination, so that the fertilizer efficiency period of the ammonium nitrogen fertilizer can be effectively prolonged, the fertilizer efficiency period is prolonged from 15-30 days to 100-115 days, and the total effective period of the fertilizer reaches 120-130 days.
2. The efficient and stable green ammonium nitrogen fertilizer can obviously improve the absorption and utilization effect of crops on the nitrogen of the ammonium nitrogen fertilizer, can promote the absorption of the crops on other nutrient elements, increases the absorption amount of the plants on the nitrogen of the ammonium nitrogen fertilizer, improves the utilization rate of the nitrogen fertilizer by 30-60 percent, reduces the fertilizer dosage by 10-50 percent, and increases the content of protein, amino acid, fat and other nutrient substances in agricultural products. The absorption promoting rate can reach 3 to 5 times; the nitrogen absorption rate can be improved by more than 50%, the phosphorus absorption rate is improved by more than 6%, and the potassium absorption rate is improved by more than 20%; meanwhile, the nitrification inhibitor CP used by the fertilizer disclosed by the invention also has the effects of promoting the growth of crops and absorbing soil nutrients, and has the additive and complementary effects with other nitrification inhibitors when being matched with other nitrification inhibitors to prolong the fertilizer effect of the ammonium nitrogen fertilizer, the fertilizer efficiency period of the ammonium nitrogen fertilizer is obviously prolonged, and the synergism of the nitrification inhibitor CP and other nitrification inhibitors on the inhibition of ammonia oxidation or the effect of promoting the absorption and utilization of the crops are fully exerted.
4. The fertilizer is suitable for various plants planted on black soil, and has high specificity and good effect; the fertilizer has obvious disease-resistant, drought-resistant and lodging-resistant effects on crops after being applied to soil, can effectively improve the nutrient storage capacity of the soil and the fertility, has the effect of fertilizing black soil, and has certain effect on succeeding crops. The normal use of the product can reduce the application of ammonium nitrogen fertilizer by 15-50%, increase the yield of grains by 8-30%, increase the yield of vegetables by 10-50% and increase the yield of cash crops by more than 30%. Obviously improve the quality of crops and improve the commodity grade.
5. The fertilizer can meet the requirement of nitrogen for the whole growing season of black soil crops by realizing simultaneous sowing of seed fertilizer and one-time basal application of nitrogen fertilizer, and has the advantages of simple preparation operation, easy realization, wide material sources and easy obtainment of raw materials; the agricultural production saves labor and time, and greatly reduces the labor intensity and the production cost of farmers.
6. The product of the invention has high efficiency, low cost, environmental protection and environmental protection. The raw material nitrification inhibitor adopted by the invention has low dosage, the main inhibitor has the effect of promoting the growth of the plants, and the main inhibitor is quickly decomposed in the soil and is decomposed in the current year without any residue.
7. The high-efficiency stable green ammonium nitrogen fertilizer granule product can be used as a long-acting nitrogen fertilizer raw material of a bulk blend fertilizer for a formula special for fertilizing black soil cultivated crops by a soil testing formula. The high-efficiency stable green ammonium nitrogen fertilizer powder or liquid product can be used as a long-acting nitrogen fertilizer raw material of a compound fertilizer with a special formula for fertilizing black soil cultivation crops by using a soil testing formula.
Detailed Description
The following examples are presented to further illustrate embodiments of the present invention, and it should be understood that the embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the invention.
Example 1:
the method takes agricultural ammonium chloride as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine wettable powder based on 100 parts of ammonium chloride particles.
The preparation method comprises the following steps:
1) preparing a suspension solution: dissolving 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine wettable powder in 200ml of aqueous solution, and uniformly stirring to prepare a suspension solution for later use.
2) The method comprises the steps of placing prepared suspension solution into a fluidized bed liquid tank by utilizing a fluidized bed coating technology, injecting 100 parts of ammonium chloride particles containing 26% of nitrogen into a spray tower from a fertilizer feed inlet for fluidization, and then uniformly coating the suspension solution on the surfaces of the ammonium chloride particles by an atomizing nozzle through a flow controller along with the operation of a fluidized bed, thereby finally preparing the efficient stable green ammonium nitrogen fertilizer containing 25% of nitrogen. The parameters of the fluidized bed operation are that the inlet air temperature is 60 ℃, the pressure of compressed air is 0.35Pa, and the atomization pressure of a spray head is 0.05 Pa.
Example 2:
the method takes agricultural ammonium sulfate as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of ammonium sulfate powder, 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine) is added, wherein the ammonium sulfate powder contains 20.5% of nitrogen.
The preparation method comprises the following steps:
100 parts of ammonium sulfate powder containing 20.5 percent of nitrogen are injected into a fertilizer mixing tank from a fertilizer feed inlet, 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine is thrown into the fertilizer mixing tank, a stirrer is started to stir, when the ammonium sulfate and the CP are uniformly stirred (about 15 minutes), the mixture is lifted to the feed inlet of an extruder through a bucket elevator to carry out extrusion granulation, and the efficient and stable green ammonium nitrogen granular nitrogen fertilizer containing 20 percent of nitrogen with the grain diameter of 2.5-4.8mm is prepared.
Example 3:
the method takes ammonium sulfate as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of ammonium sulfate powder, 1 part of a mixture of CP (2-chloro-6 (trichloromethyl) -pyridine and DMPP (3, 4-dimethylpyrazole phosphate) is 1:1 in parts by mass, wherein the ammonium sulfate powder contains 20.5% of nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and 1 part of DMPP (3, 4-dimethylpyrazole phosphate) are mixed, stirred and uniformly stirred for later use.
2) Adding 100 parts of ammonium sulfate powder containing 20.5% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing the nitrification inhibitor with the ammonium sulfate powder, stirring the mixture, lifting the mixture to a feed inlet of an extruder through a bucket elevator after the mixture is uniformly stirred, and performing extrusion granulation to prepare the green ammonium nitrogen granular nitrogen fertilizer containing 20% of nitrogen and having high-efficiency stability and particle size of 2.5-4.8 mm. The time for keeping the content of high-concentration ammonium nitrogen in the black soil is prolonged by 20-35 days compared with the ammonium nitrogen fertilizer only added with DMPP.
Example 4:
the method takes ammonium chloride as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of powdery ammonium chloride, 1 part of a mixture of CP (2-chloro-6 (trichloromethyl) -pyridine and DCD (dicyanodiamide), wherein the mass part ratio of the mixture is 1:1, and the ammonium chloride powder contains 26% of nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and 1 part of DCD (dicyanodiamine) are mixed and stirred mechanically or manually, and are used for standby after being stirred uniformly.
2) Adding 100 parts of ammonium chloride powder containing 26% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing the mixed nitrification inhibitor with the ammonium chloride powder, mechanically or manually stirring, and after stirring uniformly, lifting a feed inlet of an extruder through a bucket elevator or manually, and carrying out extrusion granulation to prepare the nitrogen fertilizer containing 25% of high-efficiency stable green ammonium nitrogen particles with the particle size of 2.5-4.8 mm.
Example 5:
the method takes ammonium chloride as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of pulverulent ammonium chloride, 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and NH4-B (composite nitrification inhibitor, AGRHO ammonia protection B) mixture, wherein the mixture is 1:1 in parts by mass; wherein the ammonium chloride powder contains 26% nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine with NH4And (4) mixing the-B (composite nitrification inhibitor, AGRHO ammonia protection B), mechanically or manually stirring, and uniformly stirring for later use.
2) Adding 100 parts of ammonium chloride powder containing 26% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing the mixed nitrification inhibitor with the ammonium chloride powder, mechanically or manually stirring, and after stirring uniformly, lifting a feed inlet of an extruder through a bucket elevator or manually, and carrying out extrusion granulation to prepare the nitrogen fertilizer containing 25% of high-efficiency stable green ammonium nitrogen particles with the particle size of 2.5-4.8 mm.
Example 6:
the method takes ammonium sulfate as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of powdery ammonium sulfate, 1 part of a mixture of CP (2-chloro-6 (trichloromethyl) -pyridine and N-guard (a composite nitrification inhibitor provided by a foreign company) is 1:1 in parts by mass, wherein the ammonium sulfate powder contains 20.5% of nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and 1 part of N-guard (composite nitrification inhibitor, provided by a foreign company) are mixed, mechanically or manually stirred, and uniformly stirred for later use.
2) Adding 100 parts of ammonium sulfate powder containing 20.5% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing the nitrification inhibitor with the ammonium sulfate powder, mechanically or manually stirring, and after uniformly stirring, lifting a feed inlet of an extruder through a bucket elevator or manually, and carrying out extrusion granulation to prepare the high-efficiency stable green ammonium nitrogen granular nitrogen fertilizer containing 20% of nitrogen with the particle size of 2.5-4.8 mm.
Example 7:
the method takes ammonium chloride as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of powdery ammonium chloride, 1 part of a mixture of CP (2-chloro-6 (trichloromethyl) -pyridine and CMP (1-carbamyl-3-methylpyrazole) is 1:0.5 in parts by mass, wherein the ammonium chloride powder contains 26% of nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and 0.5 part of CMP (1-carbamyl-3-methylpyrazole) are mixed and stirred mechanically or manually, and are uniformly stirred for later use.
2) Adding 100 parts of ammonium chloride powder containing 26% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing with the ammonium chloride powder, and carrying out mechanical or manual stirring to obtain the high-efficiency stable green ammonium nitrogen granular nitrogen fertilizer containing 25% of nitrogen after uniform stirring.
Example 8:
the method takes ammonium sulfate as a nitrogen source to prepare the high-efficiency stable green ammonium nitrogen fertilizer, and comprises the following raw materials: based on 100 parts of powdery ammonium sulfate, 1 part of a mixture of CP (2-chloro-6 (trichloromethyl) -pyridine and AM (2-amino-4-chloro-6-methylpyrimidine) is 1:0.3 in parts by mass, wherein the ammonium sulfate powder contains 20.5% of nitrogen.
The preparation method comprises the following steps:
1) preparing a mixed nitrification inhibitor: mixing 1 part of CP (2-chloro-6 (trichloromethyl) -pyridine and 0.3 part of AM (2-amino-4-chloro-6-methylpyrimidine), and stirring the mixture mechanically or manually for uniform use.
2) Adding 100 parts of ammonium sulfate powder containing 20.5% of nitrogen into a fertilizer mixing tank, adding the prepared mixed nitrification inhibitor into the fertilizer mixing tank, mixing the nitrification inhibitor with the ammonium sulfate powder, mechanically or manually stirring, and after uniformly stirring, lifting a feed inlet of an extruder through a bucket elevator or manually, and carrying out extrusion granulation to prepare the high-efficiency stable green ammonium nitrogen granular nitrogen fertilizer containing 20% of nitrogen with the particle size of 2.5-4.8 mm.
Application example 1:
taking the application of the high-efficiency stable ammonium nitrogen fertilizer product prepared in the example 4 in the planting of corn in the black soil of agricultural land as an example; the stable ammonium chloride fertilizer (containing 25% nitrogen) is prepared by adding the ammonium chloride fertilizer and DCD in a weight ratio of 1:0.01 into the ammonium chloride powder fertilizer independently according to the preparation method of the example 4 and is used as a contrast fertilizer for corn planting in black soil.
The specific operation is as follows:
the highly efficient and stable ammonium nitrogen fertilizer granules prepared in example 4 were mixed with phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2)N 16kg，P2O5 10kg、K2The high-efficiency stable ammonium nitrogen fertilizer with the amount of O8 kg is mixed with the triple superphosphate and the potassium chloride for application, the base fertilizer is applied at one time, and the top dressing is not needed during the growth period of the corn.
Comparative fertilizers made with DCD were also identical to phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2)N 16kg，P2O5 10kg、K2The stable ammonium nitrogen fertilizer with the amount of O8 kg is mixed with the triple superphosphate and the potassium chloride for application, the base fertilizer is applied at one time, and no additional fertilizer is applied during the growth period of the corn.
The application result shows that: the high-efficiency and stable ammonium nitrogen fertilizer product prepared in example 4 is applied, and the corn yield is 778.26kg/666.7m2The corn yield of the stable ammonium nitrogen fertilizer product prepared by DCD is 718.24kg/666.7m2Corn applying high-efficiency stable ammonium nitrogen fertilizerThe yield is increased by 8.36 percent. The high-efficiency and stable ammonium nitrogen fertilizer product prepared in the embodiment 4 is applied to the corn leaf concentration rate in the corn filling period, and the corn leaves are dried and mature in the corn harvesting period without fertilizer release; in the corn filling stage, the leaves of the corn plants, which are applied with the stable ammonium nitrogen fertilizer product prepared by DCD, have yellow spots and are in the sign of fertilizer loss, and the plants are partially dead when the corn is harvested.
The analysis of soil nutrient content indexes shows that: by applying the product of the example 4, the content of ammonium nitrogen and nitrate nitrogen in the black soil is increased, the increase range is obvious, and the effect of improving the soil fertility is achieved.
TABLE 1 variation of basic physicochemical properties of soils with different nitrogen fertilizers, such as example 4
Figure BDA0002868523450000071
Application example 2:
taking the application of the high-efficiency stable ammonium nitrogen fertilizer product prepared in the embodiment 3 in the planting of corn in the black soil of agricultural land as an example; ammonium sulfate fertilizer and DMPP in a weight ratio of 1:0.01 were added to ammonium sulfate powder fertilizer separately by the preparation method of example 3 to prepare stable ammonium chloride fertilizer (containing 20% nitrogen) as a comparative fertilizer for corn application in black soil planting.
The specific operation is as follows:
the highly efficient and stable ammonium nitrogen fertilizer granules prepared in example 3 were mixed with phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2)N 16kg，P2O5 10kg、K2The high-efficiency stable ammonium nitrogen fertilizer with the amount of O8 kg is mixed with the triple superphosphate and the potassium chloride for application, the base fertilizer is applied at one time, and the top dressing is not needed during the growth period of the corn.
Comparative fertilizers made with DMPP were also similar to phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2)N 16kg，P2O5 10kg、K2A stable ammonium nitrogen fertilizer in an amount of O8 kg is applied in admixture with triple superphosphate and potassium chlorideThe fertilizer is used once, and the top dressing is not needed during the growth period of the corn.
The application result shows that: the high-efficiency and stable ammonium nitrogen fertilizer product prepared in example 3 is applied, and the corn yield is 796.12kg/666.7m2The corn yield of the stable ammonium nitrogen fertilizer product prepared by applying DMPP is 702.35kg/666.7m2And the yield of corn is increased by 13.35% by applying the high-efficiency stable ammonium nitrogen fertilizer. The high-efficiency and stable ammonium nitrogen fertilizer product prepared in the embodiment 3 is applied to the corn leaf concentration rate in the corn filling period, and is dried and mature in the corn harvesting period, the plant is greener, and the fertilizer is not removed; in the filling period of corn, the leaves of corn plants of the stable ammonium nitrogen fertilizer product prepared by applying DMPP are light yellow and show the symptom of fertilizer loss, and when the corn is harvested, the leaves of the corn plants are yellow and the individual plants die, and part of the plants show the symptom of premature senility.
The analysis of soil nutrient content indexes shows that: by applying the product of the example 3, the content of ammonium nitrogen and nitrate nitrogen in the black soil is increased, the increase range is large, and the soil fertility is obviously improved.
TABLE 2 variation of basic physicochemical properties of soils with different nitrogen fertilizers, as in example 3
Figure BDA0002868523450000081
Application example 3:
taking the application of the high-efficiency stable ammonium nitrogen fertilizer product prepared in the example 2 in the planting of corn in the black soil of agricultural land as an example; the stable ammonium sulfate fertilizer (containing 20% nitrogen) is prepared by adding ammonium sulfate fertilizer and CMP in a weight ratio of 1:0.01 into ammonium sulfate powder fertilizer by the preparation method of example 2, and is used as a contrast fertilizer for corn application in black soil planting.
The specific operation is as follows:
the highly efficient and stable ammonium nitrogen fertilizer granules prepared in example 2 were mixed with phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2) N14 kg (Nitrogen reduction 12.5%), P2O5 10kg、K2High efficiency and stability of O8 kgThe qualitative ammonium nitrogen fertilizer, the triple superphosphate and the potassium chloride are mixed and applied, the base fertilizer is applied at one time, and no additional fertilizer is applied during the growth period of the corn.
The comparative fertilizer prepared by CMP was also similar to phosphorus (P)2O543% by weight potassium superphosphate (K)2O60% potassium chloride) fertilizer, namely, the fertilizer is applied per mu (666.7 m)2)N 16kg，P2O5 10kg、K2The stable ammonium nitrogen fertilizer with the amount of O8 kg is mixed with the triple superphosphate and the potassium chloride for application, the base fertilizer is applied at one time, and no additional fertilizer is applied during the growth period of the corn.
The application result shows that: the high-efficiency and stable ammonium nitrogen fertilizer product prepared in the example 2 is applied, and the corn yield is 769.11kg/666.7m2The corn yield of the stable ammonium nitrogen fertilizer product prepared by applying CMP is 711.05kg/666.7m2And the yield of corn is increased by 8.17% by applying the high-efficiency stable ammonium nitrogen fertilizer. The high-efficiency and stable ammonium nitrogen fertilizer product prepared in the embodiment 2 is applied to the corn leaf concentration rate in the corn filling period, and the corn leaves are dried and mature in the corn harvesting period without fertilizer release; in the corn filling stage, the leaves of the corn plants are yellow and have faint yellow color when the stable ammonium nitrogen fertilizer product prepared by CMP is applied, the corn plants die when the corn is harvested, and part of the plants are laid down.
The soil fertilizer index analysis shows that: by applying the product of the example 2, the content of ammonium nitrogen and nitrate nitrogen in the black soil is increased, the increase range is large, the reserve of quick-acting nitrogen in the soil is increased, and the soil fertility is obviously improved.
TABLE 3 variation of basic physicochemical properties of soils with different nitrogen fertilizers in application example 2
Figure BDA0002868523450000082

Claims (9)

1. The utility model provides a high-efficient green ammonium nitrogen fertilizer of stability suitable for black soil which characterized in that: 1, by weight: 0.0003-0.1 of ammonium nitrogen fertilizer and biochemical inhibitor; the biochemical inhibitor is CP or the combination of CP and any one biochemical inhibitor; wherein any one of them is used as raw materialThe chemosuppressor is NH4-B, N-guard, DMPP, DCD, CMP, AM, MP.
2. The efficient stable green ammonium nitrogen fertilizer for black soil as claimed in claim 1, wherein: the CP is combined with any one biochemical inhibitor according to the mass ratio of 0.00015-0.05: 0.0005-0.05.
3. The efficient stable green ammonium nitrogen fertilizer for black soil as claimed in claim 1, wherein: the ammonium nitrogen fertilizer is solid or liquid fertilizer or chemical products used in agricultural production.
4. A high efficiency stable green ammonium nitrogen fertilizer for use in black soil as claimed in claim 3 wherein: the ammonium nitrogen fertilizer is ammonium chloride, ammonium sulfate, ammonium bicarbonate, liquid ammonia (ammonia water), monoammonium phosphate or diammonium phosphate.
5. The efficient stable green ammonium nitrogen fertilizer for black soil as claimed in claim 1, wherein: the pH value of the black soil is 5.8-10.
6. The method for preparing the high-efficiency stable green ammonium nitrogen fertilizer suitable for the black soil in claim 1 is characterized in that: according to different states of the ammonium nitrogen fertilizer, the ammonium nitrogen fertilizer and a single biochemical inhibitor or a combined biochemical inhibitor are uniformly mixed according to the proportion, or the mixture is granulated after being mixed.
7. The method for preparing a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil according to claim 6, which is characterized in that: uniformly spraying the single biochemical inhibitor or the combined biochemical inhibitor suspension solution on the surface of the granular ammonium nitrogen fertilizer raw material in a fluidized state through a fluidized bed according to the proportion or uniformly stirring the granular ammonium nitrogen fertilizer and the single biochemical inhibitor or the combined biochemical inhibitor mixture;
uniformly mixing the powdery ammonium nitrogen fertilizer raw material and a single biochemical inhibitor or a combined biochemical inhibitor according to the proportion, and granulating;
according to the proportion, the single biochemical inhibitor or the combined biochemical inhibitor is directly injected into the ammonium nitrogen fertilizer and mixed evenly after being mixed evenly; or mixing and granulating.
8. The method for preparing a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil according to claim 6, which is characterized in that: the fluidized bed is adopted for uniform spraying, the air inlet temperature in the fluidized bed is controlled within 60 ℃, the pressure of compressed air is 0.35-0.65 Pa, and the atomization pressure of a spray head is 0.05-0.15 Pa.
9. The method for preparing a high-efficiency stable green ammonium nitrogen fertilizer suitable for black soil according to claim 6, which is characterized in that: and adding one or more of phosphorus, potassium and trace elements into the ammonium nitrogen fertilizer, uniformly mixing, and mechanically granulating to obtain the special multi-element high-efficiency stable ammonium-based compound fertilizer for the black soil.
CN202011589638.5A 2020-12-29 2020-12-29 Efficient and stable green ammonium nitrogen fertilizer special for black soil and preparation method thereof Pending CN112573966A (en)

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CN102249817A (en) * 2011-04-21 2011-11-23 浙江奥复托化工有限公司 Preparation for inhibiting soil nitrogen loss as well as preparation method and application thereof
CN102442868A (en) * 2011-09-29 2012-05-09 廊坊北鑫化工有限公司 Additive for urea with long-term stability
CN102627516A (en) * 2012-04-27 2012-08-08 潍坊弗兰德肥料有限公司 Stable long-acting composite fertilizer with quick-acting function and preparation method
CN104086282A (en) * 2014-06-06 2014-10-08 中国农业科学院农业资源与农业区划研究所 Ammonium nitrogen stabilized nitric phosphate and preparation method thereof
CN109485509A (en) * 2018-12-29 2019-03-19 中国科学院沈阳应用生态研究所 The Slow-release organic fertilizer of passivation restoration of soil polluted by heavy metal and preparation and application

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CN101434502A (en) * 2007-11-16 2009-05-20 中国科学院沈阳应用生态研究所 Synergistic slow release nitrogen fertilizer and preparation thereof
CN101434504A (en) * 2007-11-16 2009-05-20 中国科学院沈阳应用生态研究所 Synergistic slow release nitrogen fertilizer and preparation thereof
CN102249817A (en) * 2011-04-21 2011-11-23 浙江奥复托化工有限公司 Preparation for inhibiting soil nitrogen loss as well as preparation method and application thereof
CN102442868A (en) * 2011-09-29 2012-05-09 廊坊北鑫化工有限公司 Additive for urea with long-term stability
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