BB fertilizer filler with soil conditioning function as well as preparation method and application thereof

Abstract

The invention discloses a BB fertilizer filler with a soil conditioning function as well as a preparation method and application thereof, and belongs to the technical field of BB fertilizers. The BB fertilizer filler with the soil conditioning function provided by the invention is granular, is convenient to add in BB fertilizer production, and is convenient for mechanical application. The filler contains calcium, potassium, silicon, sulfur, zinc, manganese and other necessary nutrient elements and beneficial elements for crops, also contains carboxyl, hydroxyl, phenolic hydroxyl and other organic acid groups, in addition, organic acid, sugar, starch and other soluble organic substances are added, and the substances not only can promote granulation of granulation materials, but also can provide an organic carbon source and energy for the crops, so that the crop quality is improved. The effect of enhancing the stress resistance of crops is achieved. According to the BB fertilizer filler with the soil conditioning function provided by the invention, a BB fertilizer product added with the filler not only has a nitrogen-phosphorus-potassium nutrition function, but also has a good soil conditioning function through the comprehensive effects of adjusting the acid-base buffer capacity and ion composition of soil, enhancing the stress resistance of crops, activating nutrient elements in the soil and the like; the application prospect is very wide.

Description

Technical Field

[0001] The present invention belongs to the technical field of BB fertilizers, and particularly relates to a filler for BB fertilizers with soil conditioning function, a preparation method thereof and uses thereof. Background Art

[0002] At present, the utilization rate of fertilizers is generally low, and the average utilization rates of nitrogen fertilizer, phosphate fertilizer and potassium fertilizer are only about 33%, 25% and 45% respectively. Therefore, improving the utilization rate of fertilizers has become an important measure to save resources and energy, protect the environment and ensure food security, and the functional improvement of fertilizers is an important means to improve the utilization rate of fertilizers. BB fertilizers have the characteristics of low production cost, flexible formula and high nutrient content, and are one of the important directions for the development of fertilizers. Therefore, it is feasible to produce functional BB fertilizers.

[0003] In 2008, a BB fertilizer synergistic conditioning filler and its production method were disclosed (Publication No.: CN101148380A). This invention relates to a BB fertilizer synergistic conditioning filler prepared from wollastonite and phosphogypsum and its production method, which is prepared from wollastonite and phosphogypsum according to a weight ratio of 1:1. The wollastonite is ground into powder, mixed with powdered phosphogypsum, stirred evenly, and then sealed for 3 to 6 days to become the BB fertilizer synergistic conditioning filler of this invention. This invention is a simple mixture, and the functions of the raw materials are not fully exerted, and it is not granulated, so it is not easy to be popularized and applied in the production of BB fertilizers, and the usage method and specific uses of the invention are not mentioned either. Summary of the Invention

[0004] The purpose of the present invention is to provide a filler for BB fertilizers with soil conditioning function, a preparation method thereof and uses thereof. On the basis of summarizing the prior art, the inventors have developed a filler for BB fertilizers with soil conditioning function by using calcium magnesium phosphate fertilizer and phosphogypsum as the main raw materials through a large number of experimental studies, such as the screening of raw materials, the research on the filler formula and the development of sprays. Thus, while the BB fertilizer has the nutrient functions of nitrogen, phosphorus and potassium, it also has the function of soil conditioning. The coordinated action of the two can promote crop yield increase and greatly improve the fertilizer utilization rate, and it has a wide applicability.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] One of the technical solutions of the present invention: Provide a preparation method of a filler for BB fertilizers with soil conditioning function, including the following steps:

[0007] Mix attapulgite powder, zinc sulfate, manganese sulfate and borax to make a filler;

[0008] Dissolve organic acid, sugar and polyoxyethylene lauryl ether in water to obtain a mixed solution. Heat the mixed solution to 80°C - 100°C, and then add starch accounting for 0.1 - 0.5% of the mass of the mixed solution. After stirring evenly, a spray is obtained.

[0009] Mix the filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral evenly, spray the spray on the obtained mixed material and then granulate and dry to obtain the BB fertilizer filler with soil conditioning function.

[0010] Preferably, the particle size of the attapulgite powder is 50 - 100 mesh.

[0011] Preferably, the mass ratio of the attapulgite powder, zinc sulfate, manganese sulfate and borax is 1:0.1 - 0.2:0.1 - 0.2:0.05 - 0.1.

[0012] Preferably, the organic acid includes one or more of citric acid, tartaric acid, salicylic acid, benzoic acid, oxalic acid and malic acid.

[0013] Preferably, the sugar includes one or more of sucrose, fructose, glucose, maltose, lactose, galactose and oligosaccharide.

[0014] Preferably, the mass ratio of the organic acid, sugar and polyoxyethylene lauryl ether is 1:0.8 - 1.2:0.2 - 0.5.

[0015] Preferably, the mass fraction of the solute in the mixed solution is 1.2%.

[0016] Preferably, the mass ratio of the filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral is 5 - 15:35 - 45:35 - 45:5 - 15.

[0017] More preferably, the mass ratio of the filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral is 8 - 14:36 - 42:36 - 42:8 - 14.

[0018] Most preferably, the mass ratio of the filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral is 10 - 12:38 - 40:38 - 40:10 - 12.

[0019] Preferably, the spraying amount of the spray is 3 - 10 kg / ton.

[0020] Preferably, the humic acid mineral is weathered coal, lignite or peat with a particle size of 50 - 100 mesh.

[0021] The second technical solution of the present invention: Provide a BB fertilizer filler with soil conditioning function prepared by the preparation method of the BB fertilizer filler with soil conditioning function according to the above.

[0022] Preferably, the addition amount of the BB fertilizer filler with soil conditioning function in the BB fertilizer is 50 - 500 kg per ton.

[0023] The third technical solution of the present invention: Provide an application of the above-mentioned BB fertilizer filler with soil conditioning function in soil conditioning.

[0024] The beneficial technical effects of the present invention are as follows:

[0025] The preparation method of the BB fertilizer filler with soil conditioning function provided by the present invention has the following characteristics: Conventional equipment can be used in production, without adding special equipment, the production process is simple, the production capacity is high, the cost is low, and it is environmentally friendly.

[0026] The BB fertilizer filler with soil conditioning function provided by the present invention is granular, which is convenient for use in the production of BB fertilizer. The raw material calcium magnesium phosphate fertilizer not only contains phosphorus, but also contains various nutrient elements such as calcium, magnesium, silicon, potassium and manganese. Phosphogypsum contains a large amount of calcium and silicon, both of which are good raw materials for soil conditioners. By using the acidity and alkalinity of the two itself for adjustment, it has wide applicability. The humic acid in the humic acid mineral contains rich acidic groups such as carboxyl, hydroxyl and phenolic hydroxyl groups, and has a high organic matter content, which has the function of promoting the growth of crop roots, improving root vitality, and enhancing the stress resistance of crops. Organic acids, sugars and starches and other soluble organic substances are added to the spray. These substances can not only promote the granulation of granulation materials, provide organic carbon sources and energy for crops, but also activate the nutrient elements in the conditioner and soil. Attapulgite powder, zinc sulfate, manganese sulfate and borax are added to the filler, which can supplement trace elements such as zinc, manganese and boron that are generally lacking in the soil, have a preventive and control effect on gray mold of wheat, little leaf disease of fruit trees, etc., and can increase crop yields.

[0027] The BB fertilizer filler with soil conditioning function provided by the present invention can play a good soil conditioning role through comprehensive effects such as adjusting the acid-base buffering capacity and ion composition of the soil, enhancing the stress resistance of crops and activating the nutrient elements in the soil, so that the BB fertilizer product added with this filler not only has the nutrient function of nitrogen, phosphorus and potassium, but also has good soil conditioning function, and has a very broad application prospect.

[0028] The BB fertilizer filler with soil conditioning function provided by the present invention is a multi-functional BB fertilizer filler, which is environmentally friendly. The addition amount in the production of BB fertilizer and the usage amount in agricultural production can be determined according to factors such as soil fertility status and crop varieties. Description of the Drawings

[0029] Figure 1Process flow chart for preparing BB fertilizer filler with soil conditioning function in the embodiments of the present invention; wherein, 1 - attapulgite powder, 2 - zinc sulfate, 3 - manganese sulfate, 4 - borax, 5 - filler, 6 - organic acid, 7 - sugar, 8 - polyoxyethylene lauryl ether, 9 - starch, 10 - spray, 11 - calcium magnesium phosphate fertilizer and phosphogypsum, 12 - humic acid, 13 - pan mixer, 14 - rotary drum granulator, 15 - drying cylinder, 16 - drum screen, 17 - cooling cylinder, 18 - BB fertilizer filler with soil conditioning function. Detailed implementation manners

[0030] The various exemplary implementation manners of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, characteristics, and implementation schemes of the present invention. It should be understood that the terms described in the present invention are only used to describe specific implementation manners and are not used to limit the present invention.

[0031] In addition, for the numerical ranges in the present invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Any intermediate value within any stated value or stated range, as well as each smaller range between any other stated value or intermediate value within the stated range, is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded from the range.

[0032] Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention pertains. Although the present invention only describes preferred methods and materials, any methods and materials similar or equivalent to those described herein can also be used in the implementation or testing of the present invention.

[0033] Regarding the terms "comprising", "including", "having", "containing", etc. used herein, they are all open-ended terms, meaning including but not limited to.

[0034] The process flow chart for preparing BB fertilizer filler with soil conditioning function in the embodiments of the present invention is shown in Figure 1 , Figure 1 wherein, 1 - attapulgite powder, 2 - zinc sulfate, 3 - manganese sulfate, 4 - borax, 5 - filler, 6 - organic acid, 7 - sugar, 8 - polyoxyethylene lauryl ether, 9 - starch, 10 - spray, 11 - calcium magnesium phosphate fertilizer and phosphogypsum, 12 - humic acid, 13 - pan mixer, 14 - rotary drum granulator, 15 - drying cylinder, 16 - drum screen, 17 - cooling cylinder, 18 - BB fertilizer filler with soil conditioning function.

[0035] All raw materials used in the embodiments of the present invention are commercially available products.

[0036] In the embodiments of the present invention, all mechanical equipment used is well-known equipment in the technical field.

[0037] Example 1

[0038] Preparation of BB fertilizer filler with soil conditioning function:

[0039] A. Preparation of filler

[0040] Mix attapulgite powder with a particle size of 50 - 100 mesh, zinc sulfate, manganese sulfate, and borax evenly in a weight ratio of 1:0.1:0.1:0.05 to obtain the filler.

[0041] B. Preparation of spray

[0042] Mix organic acids (citric acid, tartaric acid, benzoic acid mixed in a mass ratio of 1:1:1), sugars (sucrose, fructose, maltose, galactose mixed in a mass ratio of 1:1:1), and polyoxyethylene lauryl ether evenly in a weight ratio of 1:0.8:0.2 to form a mixture. Then, prepare a mother liquor with a concentration of 30% by adding water to this mixture. When in use, dilute this mother liquor 25 times with water, heat it to 80°C, add starch accounting for 0.1% of the weight of the dilution, and stir evenly to form the spray.

[0043] C. Granulation

[0044] Put 15 parts by weight of the filler obtained in step A, 35 parts by weight of calcium magnesium phosphate fertilizer, 35 parts by weight of phosphogypsum, and 15 parts by weight of weathered coal (particle size 50 - 100 mesh) into a mixer sold by Zhengzhou Tianci Heavy Industry Machinery Co., Ltd. under the trade name pan mixer, stir and mix evenly, and then put them into a granulator sold by Tai'an Dongfang Drying Equipment Co., Ltd. under the trade name ZL - series rotary drum granulator. At the same time, spray the spray prepared in step B onto these materials at a rate of 7 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0045] D. Drying and screening

[0046] The granular materials obtained in step C are transported by a belt conveyor to a drying cylinder sold by Henan Luoyang Zhongde Heavy Industry Co., Ltd. under the trade name dryer. After drying, they are screened by a drum screen sold by Shenyang Kexiang Electric Power Environmental Protection Equipment Co., Ltd. under the trade name GT - series drum screen and cooled by a cooling cylinder sold by Henan Luoyang Zhongde Heavy Industry Co., Ltd. under the trade name cooling cylinder to produce BB fertilizer filler with soil conditioning function.

[0047] Example 2

[0048] Preparation of BB fertilizer filler with soil conditioning function:

[0049] A. Preparation of filler

[0050] Mix attapulgite powder with a particle size of 50 - 100 mesh, zinc sulfate, manganese sulfate, and borax evenly in a weight ratio of 1:0.2:0.2:0.1 to obtain a filler.

[0051] B. Preparation of the spray

[0052] Mix organic acids (salicylic acid, oxalic acid, malic acid mixed in a mass ratio of 1:1:1), sugars (glucose, lactose, oligosaccharides mixed in a mass ratio of 1:1:1), and polyoxyethylene lauryl ether evenly in a weight ratio of 1:1.2:0.5 to form a mixture. Then, add water to this mixture to prepare a mother liquor with a concentration of 30%. When in use, dilute this mother liquor 25 times with water, heat it to 100 °C, add starch accounting for 0.5% of the weight of the dilution, and stir evenly to form a spray.

[0053] C. Granulation

[0054] Put 5 parts by weight of the filler obtained in step A, 45 parts by weight of calcium magnesium phosphate fertilizer, 45 parts by weight of phosphogypsum, and 5 parts by weight of lignite (particle size 50 - 100 mesh) into a mixer sold by Zhengzhou Tianyu Machinery Co., Ltd. under the trade name PJ type pan mixer, stir and mix evenly, and then put them into a granulator sold by Zhengzhou Yicheng Machinery Manufacturing Co., Ltd. under the trade name ZG - series rotary drum granulator. At the same time, spray the spray prepared in step B onto these materials at a rate of 6 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0055] D. Drying and screening

[0056] The granular materials obtained in step C are transported by a belt conveyor to a drying cylinder sold by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd. under the trade name rotary dryer. After drying, they are screened by a drum screen sold by Wuxi Shuanglian Engineering Conveying Machinery Co., Ltd. under the trade name GTS series drum screen and cooled by a cooling cylinder sold by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd. under the trade name cooling cylinder to produce a BB fertilizer filler with soil conditioning function.

[0057] Example 3

[0058] Preparation of a BB fertilizer filler with soil conditioning function:

[0059] A. Preparation of the filler

[0060] Mix attapulgite powder with a particle size of 50 - 100 mesh, zinc sulfate, manganese sulfate, and borax evenly in a weight ratio of 1:0.15:0.15:0.075 to obtain a filler.

[0061] B. Preparation of the spray

[0062] Mix organic acid (citric acid), sugar (sucrose), and polyoxyethylene lauryl ether evenly at a weight ratio of 1:1:0.3 to form a mixture, and then prepare a mother liquor with a concentration of 30% by adding water to this mixture. When in use, dilute this mother liquor 25 times with water, heat it to 90 °C, add starch accounting for 0.25% of the weight of the dilution, and stir evenly to form a spray.

[0063] C. Granulation

[0064] Put 8 parts by weight of the filler obtained in step A, 36 parts by weight of calcium magnesium phosphate fertilizer, 42 parts by weight of phosphogypsum, and 14 parts by weight of peat (particle size 50 - 100 mesh) into a mixer sold by Zhengzhou Yicheng Machinery Manufacturing Co., Ltd. under the trade name PJ type vertical mixer, stir and mix evenly, and then put them into a granulator sold by Zhengzhou Yicheng Machinery Manufacturing Co., Ltd. under the trade name ZG - series rotary drum granulator. At the same time, spray the spray prepared in step B onto these materials at a rate of 5 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0065] D. Drying and Screening

[0066] The granular materials obtained in step C are transported by a belt conveyor to a drying cylinder sold by Henan Zhongyuan Mining Machinery Manufacturing Co., Ltd. under the trade name rotary drum dryer. After drying, they are screened by a drum screen sold by Wuxi Shuanglian Engineering Conveyor Machinery Co., Ltd. under the trade name GTS series drum screen and cooled by a cooling cylinder sold by Henan Zhongyuan Mining Machinery Manufacturing Co., Ltd. under the trade name cooling cylinder, and then a BB fertilizer filler with soil conditioning function is produced.

[0067] Example 4

[0068] Preparation of BB fertilizer filler with soil conditioning function:

[0069] A. Preparation of filler

[0070] Mix attapulgite powder with a particle size of 50 - 100 mesh, zinc sulfate, manganese sulfate, and borax evenly at a weight ratio of 1:0.12:0.18:0.09 to obtain a filler.

[0071] B. Preparation of spray

[0072] Mix organic acids (citric acid, salicylic acid, oxalic acid, malic acid mixed in a mass ratio of 1:1:1:1), sugars (sucrose, glucose, galactose, oligosaccharides mixed in a mass ratio of 1:1:1:1), and polyoxyethylene lauryl ether evenly at a weight ratio of 1:0.9:0.4 to form a mixture, and then prepare a mother liquor with a concentration of 30% by adding water to this mixture. When in use, dilute this mother liquor 25 times with water, heat it to 85 °C, add starch accounting for 0.15% of the weight of the dilution, and stir evenly to form a spray.

[0073] C Granulation

[0074] Put 12 parts by weight of filler, 38 parts by weight of calcium magnesium phosphate fertilizer, 40 parts by weight of phosphogypsum and 10 parts by weight of weathered coal (particle size 50 - 100 mesh) obtained in step A into a mixer sold under the trade name of pan mixer by Zhengzhou Tianci Heavy Industry Machinery Co., Ltd., fully stir and mix evenly, and then put them into a granulator sold under the trade name of ZG - series rotary drum granulator by Henan Xingyang Mingda Machinery Factory. At the same time, spray the spray prepared in step B onto these materials at a rate of 4 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0075] D, Drying and Screening

[0076] The granular materials obtained in step C are conveyed by a belt conveyor to a drying cylinder sold under the trade name of rotary dryer by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd. After drying, they are screened by a drum screen sold under the trade name of GTS - type drum screen by Shijiazhuang Yongxing Machinery Co., Ltd. and cooled by a cooling cylinder sold under the trade name of cooling cylinder by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd., and then a BB fertilizer filler with soil conditioning function is produced.

[0077] Example 5

[0078] Preparation of BB Fertilizer Filler with Soil Conditioning Function:

[0079] A, Preparation of Filler

[0080] Mix attapulgite powder, zinc sulfate, manganese sulfate and borax with a particle size of 50 - 100 mesh evenly according to a weight ratio of 1:0.18:0.12:0.09 to obtain the filler.

[0081] B, Preparation of Spray

[0082] Mix organic acids (tartaric acid and benzoic acid are mixed in a mass ratio of 1:1), sugars (fructose and lactose are mixed in a mass ratio of 1:1) and polyoxyethylene lauryl ether evenly according to a weight ratio of 1:1.1:0.35 to form a mixture, and then prepare this mixture into a mother liquor with a concentration of 30% by adding water. When in use, dilute this mother liquor 25 times with water, heat it to 95 °C, add 0.45% of starch based on the weight of the dilution, and stir evenly to form the spray.

[0083] C Granulation

[0084] Put 8 parts by weight of the filler obtained in step A, 42 parts by weight of calcium magnesium phosphate fertilizer, 42 parts by weight of phosphogypsum and 8 parts by weight of lignite (particle size 50 - 100 mesh) into a mixer sold by Zhengzhou Yicheng Machinery Manufacturing Co., Ltd. under the trade name PJ type vertical mixer, stir and mix them evenly, and then put them into a granulator sold by Zhengzhou Yicheng Machinery Manufacturing Co., Ltd. under the trade name ZG - series rotary drum granulator. At the same time, spray the spray prepared in step B onto these materials at a rate of 6 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0085] D. Drying and Screening

[0086] The granular materials obtained in step C are transported by a belt conveyor to a drying cylinder sold by Henan Zhongyuan Mining Machinery Manufacturing Co., Ltd. under the trade name rotary dryer. After drying, they are screened by a drum screen sold by Wuxi Shuanglian Engineering Conveying Machinery Co., Ltd. under the trade name GTS series drum screen and cooled by a cooling cylinder sold by Henan Zhongyuan Mining Machinery Manufacturing Co., Ltd. under the trade name cooling cylinder, and then a BB fertilizer filler with soil conditioning function is produced.

[0087] Example 6

[0088] Preparation of a BB fertilizer filler with soil conditioning function:

[0089] A. Preparation of the filler

[0090] Mix attapulgite powder with particle size 50 - 100 mesh, zinc sulfate, manganese sulfate and borax evenly according to the weight ratio of 1:0.16:0.19:0.06 to obtain the filler.

[0091] B. Preparation of the spray

[0092] Mix organic acids (citric acid, tartaric acid, salicylic acid mixed in a mass ratio of 1:1:1), sugars (sucrose, fructose, glucose mixed in a mass ratio of 1:1:1) and polyoxyethylene lauryl ether evenly according to the weight ratio of 1:0.9:0.36 to form a mixture, and then prepare this mixture into a mother liquor with a concentration of 30% by adding water. When in use, dilute this mother liquor 25 times with water, heat it to 88°C, add starch accounting for 0.32% of the weight of the dilution, and stir evenly to form the spray.

[0093] C. Granulation

[0094] Put 10 parts by weight of the filler obtained in step A, 40 parts by weight of calcium magnesium phosphate fertilizer, 40 parts by weight of phosphogypsum and 10 parts by weight of peat (particle size 50 - 100 mesh) into a mixer sold under the trade name of pan mixer by Zhengzhou Tianci Heavy Industry Machinery Co., Ltd., stir and mix evenly, and then put them into a granulator sold under the trade name of ZG-series rotary drum granulator by Henan Xingyang Mingda Machinery Factory. At the same time, spray the spray agent prepared in step B onto these materials at a rate of 7 kg / ton. These materials gradually form granular materials during the rotation of the granulator.

[0095] D. Drying and Screening

[0096] The granular materials obtained in step C are conveyed by a belt conveyor to a drying cylinder sold under the trade name of rotary dryer by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd. After drying, they are screened by a drum screen sold under the trade name of GTS-type drum screen by Shijiazhuang Yongxing Machinery Co., Ltd. and cooled by a cooling cylinder sold under the trade name of cooling cylinder by Henan Hongsheng Heavy Machinery Manufacturing Co., Ltd., and then a BB fertilizer filler with soil conditioning function is produced.

[0097] Experimental Example: Verify the influence of the BB fertilizer product prepared with the BB fertilizer filler with soil conditioning function prepared by the present invention on the yield of ginger

[0098] The BB fertilizer formula is N:P2O5:K2O = 30:5:15, and 20 wt.% of the BB fertilizer filler with soil conditioning function of Example 2 and Example 4 is added.

[0099] The experiment was carried out on ginger in Dongxia Town, Qingzhou City, Shandong Province. The implementation steps are as follows: 3 treatments were set up and repeated 3 times.

[0100] Set the following treatments:

[0101] Treatment 1: Use conventional BB fertilizer as the control (CK);

[0102] Treatment 2: Conventional BB fertilizer + filler prepared in Example 2 (T1);

[0103] Treatment 3: Conventional BB fertilizer + filler prepared in Example 4 (T2).

[0104] The fertilizer used in the experiment is a BB fertilizer with the formula of N:P2O5:K2O = 30:5:15 produced by Shandong Enbao Biotechnology Co., Ltd. The base fertilizer is 25 kg / mu, and ordinary urea and phosphoammonium are topdressed 3 times each, 20 kg / mu each time (the nitrogen, phosphorus, and potassium nutrient conditions of the three treatment groups are controlled to be the same by topdressing). The row width of ginger is 75 cm, the length is 40 meters, 3 rows are one treatment, a total of 9 rows, repeated 3 times, a total of 27 rows. The ginger variety in the experiment is Shandong baby ginger, and the total yield is measured at the maturity stage (October 10th). The results are shown in Table 1.

[0105] Table 1 Yield of Ginger

[0106] Treatment Yield (kg / mu) CK 3826 T1 4749 T2 4693

[0107] The data in Table 1 show that: the effect of the BB fertilizer filler with soil conditioning function prepared by the present invention applied in BB fertilizer is obvious. The ginger yields of T1 and T2 are increased by 24.1% and 22.7% respectively compared with CK. Thus, it can be seen that the BB fertilizer filler of the present invention has a good yield increasing effect, and at the same time has the advantages of simple production technology, low cost, wide raw material sources, easy operation, and being conducive to industrial promotion. In addition, since each treatment group is carried out under the same conditions of nitrogen, phosphorus, and potassium nutrient conditions, the yield increasing effect comes from the improvement of the soil by the BB fertilizer seasoning prepared by the present invention.

[0108] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A method for preparing a BB fertilizer filler with soil conditioning function, characterized in that: The following steps are involved: The filler is prepared by mixing attapulgite powder, zinc sulfate, manganese sulfate and borax; Dissolving an organic acid, sugar and polyoxyethylene lauryl ether in water to obtain a mixed solution, heating the mixed solution to 80° C. to 100° C., then adding 0.1 to 0.5% starch by weight of the mixed solution, and stirring evenly to obtain a spray; The filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral are uniformly mixed, the spray is sprayed on the obtained mixture, granulated and dried to obtain the BB fertilizer filler with soil conditioning function.

2. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The particle size of the attapulgite powder is 50 to 100 meshes.

3. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The mass ratio of the attapulgite powder, zinc sulfate, manganese sulfate and borax is 1:0.1-0.2:0.1-0.2:0.05-0.

1.

4. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The organic acid comprises one or more of citric acid, tartaric acid, salicylic acid, benzoic acid, oxalic acid and malic acid; and / or the sugar comprises one or more of sucrose, fructose, glucose, maltose, lactose, galactose and oligosaccharides.

5. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The mass ratio of the organic acid, sugar and polyoxyethylene lauryl ether is 1:0.8-1.2:0.2-0.

5.

6. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The mass fraction of the solute in the mixed solution is 1.2%.

7. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The mass ratio of the filler, calcium magnesium phosphate fertilizer, phosphogypsum and humic acid mineral is 5-15:35-45:35-45:5-15.

8. The preparation method of the BB fertilizer filler with soil conditioning function according to claim 1, characterized in that, The spraying amount of the spray is 3-10 kg / ton.

9. A BB fertilizer filler with soil conditioning function obtained according to the preparation method of the BB fertilizer filler with soil conditioning function according to any one of claims 1 to 8.

10. Use of the BB fertilizer filler with soil conditioning function according to claim 9 in soil conditioning.

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