CN110903140B - Shrimp rice fertilizer and preparation process thereof - Google Patents

Shrimp rice fertilizer and preparation process thereof Download PDF

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Publication number
CN110903140B
CN110903140B CN201911168411.0A CN201911168411A CN110903140B CN 110903140 B CN110903140 B CN 110903140B CN 201911168411 A CN201911168411 A CN 201911168411A CN 110903140 B CN110903140 B CN 110903140B
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fertilizer
rice
shrimp
raw materials
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CN110903140A (en
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彭永博
李贵根
罗腾
张建华
张思杨
经小榆
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Stanley Fertilizer Dangyang Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • 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

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

Abstract

The invention discloses a shrimp rice fertilizer and a preparation process thereof, wherein the shrimp rice fertilizer comprises the following raw materials in parts by weight: 295 parts of urea, 215 parts of monoammonium phosphate, 85 parts of dry ammonium, 200 parts of potassium chloride, 85 parts of rice hull powder, 20 parts of biochemical fulvic acid, 30 parts of shell powder, 45 parts of clay, 25 parts of granulating agent and 50 parts of ammonium bicarbonate. Wherein the N-P-K nutrient content is 18-10-12 respectively, and the chlorine content is 16%. The fertilizer for the crayfish and the rice can be beneficial to the production of crayfish, can provide nutrients for the rice, and can improve the yield of the crayfish and the rice.

Description

Shrimp rice fertilizer and preparation process thereof
Technical Field
The invention belongs to the field of fertilizers, and particularly relates to a shrimp rice fertilizer and a preparation process thereof.
Background
The shrimp and rice symbiosis is a novel culture mode, has good economic benefit and is deeply welcomed by the majority of farmers. How to ensure good growth of the crayfishes and high rice yield is important what fertilizer is applied, and the special fertilizer for the shrimp rice field is less at present.
CN109851433A discloses a special integrated fertilizer for shrimps and rice and a preparation method thereof, wherein a compound prepared by using a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, bioactive calcium, humic acid and ammonium polyphosphate as raw materials can activate trace elements in soil, promote absorption of paddy and crayfish and make the nutrition required by crayfish growth more comprehensive. Improving the quality of crayfish. The formula is single and the cost is high.
Disclosure of Invention
The invention provides a shrimp rice fertilizer and a preparation process thereof.
The technical scheme provided by the invention is that the shrimp rice fertilizer comprises the following raw materials in parts by weight: 300 parts of urea 290-type material, 220 parts of monoammonium phosphate 210-type material, 80-90 parts of dry ammonium, 205 parts of potassium chloride 195-type material, 80-90 parts of rice hull powder, 18-22 parts of biochemical fulvic acid, 28-32 parts of shell powder, 40-50 parts of clay, 20-30 parts of granulating agent and 45-55 parts of ammonium bicarbonate.
Further, 295 parts of urea, 215 parts of monoammonium phosphate, 85 parts of dry ammonium, 200 parts of potassium chloride, 85 parts of rice hull powder, 20 parts of biochemical fulvic acid, 30 parts of shell powder, 45 parts of clay, 25 parts of granulating agent and 50 parts of ammonium bicarbonate.
Further, the raw material rice hull powder and the like are replaced by humic acid, specifically weathered coal, and the content of humic acid is more than 65wt% in terms of dry basis.
Further, the raw clay and the like are replaced by dolomite powder.
Furthermore, the raw material also comprises chitosan, and the addition amount of the chitosan is 0.5-0.8% of the total amount of the raw material.
Furthermore, the N-P-K nutrient content in the fertilizer for the shrimps and the rice is respectively 16.5-19.5%, 8.5-11.5% and 10.5-13.5%, and the total nutrient content is more than or equal to 40%; chlorine content in Cl-Calculated by 15 percent to 20 percent.
Further, the N-P-K nutrient content in the fertilizer for the shrimps and the rice is respectively 18%, 10% and 12%, and the chlorine content is 16%.
Further, the monoammonium phosphate is 58wt% monoammonium phosphate.
The invention also relates to a process for preparing the shrimp rice fertilizer, which comprises the following steps:
1) weighing and metering the raw materials according to the formula, mixing, and granulating by using a rotary drum granulator;
2) primary drying is carried out on the particles obtained in the step 1), the temperature is 400-; then secondary drying is carried out at the temperature of 300 ℃ and 400 ℃ for 10-20 min; then cooling is carried out;
3) adding 5-8% of a plate prevention agent into the granules obtained in the step 2) and mixing to obtain the shrimp and rice fertilizer.
Furthermore, when the rotary drum granulation is carried out, 25-30 kg of saturated steam is added into each ton of the granules.
The invention has the following beneficial effects:
1. the rice hull powder is rich in organic matters, so that the growth of rice is facilitated, and nutritional ingredients are provided for crayfish; the fertilizer can be fermented after being applied, has good water retention, fertilizer retention and porosity, is beneficial to the growth of rice, and contains a large amount of silicon dioxide, so that the fertilizer has a certain insect prevention effect; however, the rice hull powder has small specific gravity and fineness, the passing rate of a 60-mesh sieve is 75%, the dust is large during production and feeding, certain loss is caused, the influence on the working environment is caused, humic acid can be used for replacing the rice hull powder, the function in the rice hull powder is achieved, and the problem of dust feeding can be well solved.
2. When the raw material clay is used, the raw material clay has good viscosity, so that the prepared fertilizer particles become flat, and the particles can be normally formed after the clay is replaced by dolomite powder.
3. By adding the chitosan oligosaccharide in the formula, the effect on the shrimp and rice is obvious, and the immunity and the disease resistance can be effectively improved; but also can promote protein synthesis and cell activation and improve the growth performance of the shrimps.
4. In the preparation process of the fertilizer for shrimp and rice, rotary drum granulation is adopted, the required energy consumption is low, compared with high-tower melting granulation, the steam consumption of each ton of the product can be reduced by 50-60KG, and the production cost can be effectively reduced.
Detailed Description
The invention will be further elucidated with reference to the following examples.
Example 1:
a fertilizer for shrimp and rice comprises the following raw materials: 295Kg of urea, 215Kg of 58% monoammonium phosphate, 85Kg of dry ammonium, 200Kg of potassium chloride, 85Kg of rice hull powder, 20Kg of biochemical fulvic acid, 30Kg of shell powder, 45Kg of clay, 25Kg of granulating agent and 50Kg of ammonium bicarbonate. The N-P-K nutrient content in the fertilizer for the shrimps and the rice is 18.2 percent, 10.1 percent and 12.0 percent respectively. The content of chlorine in the fertilizer for shrimp and rice is 16%.
In the specific preparation process,
1) weighing and metering the raw materials according to the formula, mixing, and granulating by using a rotary drum granulator; during granulation, 25-30 kg of saturated steam is added into each ton of raw materials;
2) primary drying is carried out on the particles obtained in the step 1), the temperature is 400-; then secondary drying is carried out at the temperature of 300 ℃ and 400 ℃ for 10-20 min; then cooling is carried out; until the water content is less than or equal to 2.5 percent
3) Adding 5-8% of a plate prevention agent into the granules obtained in the step 2) and mixing to obtain the shrimp and rice fertilizer.
The obtained fertilizer is tested according to GB15063-2009, wherein the total nutrient (N + P)2O5+K2O) 42.0 wt.%, total nitrogen (in terms of N) 17.3 wt.%, available phosphorus (in terms of P)2O5Calculated as K) is 11.7 wt%, potassium (calculated as K)2Calculated as O) 13.0 wt%, a moisture content of 2.3 wt%, chlorine (Cl)-Calculated) was 17.3 wt% and the particle size (1.00mm-4.75mm) was 85 wt%. The balling rate was 78.6%.
Example 2:
a fertilizer for shrimp and rice comprises the following raw materials: 295Kg of urea, 215Kg of 58% monoammonium phosphate, 85Kg of dry ammonium, 200Kg of potassium chloride, 85Kg of humic acid, 20Kg of biochemical fulvic acid, 30Kg of shell powder, 45Kg of dolomite powder, 25Kg of granulating agent and 50Kg of ammonium bicarbonate. The N-P-K nutrient content in the fertilizer for the shrimps and the rice is 18.2 percent, 10.1 percent and 12.0 percent respectively. The content of chlorine in the fertilizer for shrimp and rice is 16%. The preparation method is the same as example 1. The balling rate is 95.3% after adding dolomite powder, which is improved by 16.7% compared with example 1.
Example 3:
a fertilizer for shrimp and rice comprises the following raw materials: 290Kg of urea, 210Kg of monoammonium phosphate, 80Kg of dry ammonium, 195Kg of potassium chloride, 80Kg of humic acid, 18Kg of biochemical fulvic acid, 28Kg of shell powder, 40Kg of dolomite powder, 20Kg of granulating agent and 45-55Kg of ammonium bicarbonate. The preparation method is the same as example 1. The balling rate was 93.9%.
Example 4:
a fertilizer for shrimp and rice comprises the following raw materials: 300Kg of urea, 220Kg of monoammonium phosphate, 90Kg of dry ammonium, 205Kg of potassium chloride, 90Kg of humic acid, 22Kg of biochemical fulvic acid, 32Kg of shell powder, 50Kg of dolomite powder, 30Kg of granulating agent and 55Kg of ammonium bicarbonate. The preparation method is the same as example 1. The balling rate is 95.8 percent
The fertilizer for shrimp and rice of example 1 of the present invention was used for field experiments, wherein each 667m2Fertilizing 50kg, using no fertilizer as reference 1, using common compound fertilizer 15-10-05, total nutrient 30% as reference 2, every 667m2Fertilizing 50 kg; the field management of the three is the same. Specific data are shown in table 1 below.
Figure BDA0002288071330000031
The comparison in the table 1 shows that the compound fertilizer designed by the invention is obviously better than the existing common general fertilizer, can improve the rice yield and the lobster yield, and has better economic benefit.

Claims (8)

1. The fertilizer for shrimps and rice is characterized by being prepared from the following raw materials in parts by weight:
300 parts of urea 290-;
the shrimp rice fertilizer is prepared by the following specific steps:
1) weighing and metering the raw materials according to the formula, mixing, and granulating by using a rotary drum granulator;
2) primary drying is carried out on the particles obtained in the step 1), the temperature is 400-; then secondary drying is carried out at the temperature of 300 ℃ and 400 ℃ for 10-20 min; then cooling is carried out;
3) adding 5-8% of a plate prevention agent into the granules obtained in the step 2) and mixing to obtain the shrimp and rice fertilizer.
2. The shrimp rice fertilizer as claimed in claim 1, wherein: 295 parts of urea, 215 parts of monoammonium phosphate, 85 parts of dry ammonium, 200 parts of potassium chloride, 85 parts of humic acid, 20 parts of biochemical fulvic acid, 30 parts of shell powder, 45 parts of dolomite powder, 25 parts of granulating agent and 50 parts of ammonium bicarbonate.
3. The shrimp rice fertilizer as claimed in claim 1, wherein: the humic acid is weathered coal, and the content of the humic acid is more than 65wt% in terms of dry basis.
4. The shrimp rice fertilizer as claimed in any one of claims 1 to 3, wherein: the composition is prepared from the following raw materials in parts by weight: 300 parts of urea 290-; the addition amount of the chitosan is 0.5-0.8% of the total amount of the raw materials.
5. The shrimp rice fertilizer as claimed in claim 4, wherein: the N-P-K nutrient content in the fertilizer for the shrimps and the rice is respectively 16.5-19.5%, 8.5-11.5% and 10.5-13.5%, and the total nutrient content is more than or equal to 40%; chlorine content in Cl-Calculated by 15 percent to 20 percent.
6. The shrimp rice fertilizer as claimed in claim 4, wherein: the N-P-K nutrient content in the fertilizer for the shrimps and the rice is respectively 18%, 10% and 12%, and the chlorine content is 16%.
7. The shrimp rice fertilizer as claimed in claim 1, wherein: the monoammonium phosphate is 58wt percent of monoammonium phosphate.
8. The shrimp rice fertilizer as claimed in claim 1, wherein: when the rotary drum granulation is carried out, 25-30 kg of saturated steam is added into each ton of granules.
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CN112759484A (en) * 2020-12-31 2021-05-07 湖南金叶众望科技股份有限公司 Special organic-inorganic compound fertilizer for shrimp and rice and preparation method thereof
CN113019175A (en) * 2021-04-08 2021-06-25 山东奥德鲁生物科技有限公司 Special fertilizer for symbiosis of shrimps and rice and preparation and mixing device thereof

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