CN112479788A - Solid-state composite microorganism water flush fertilizer for improving saline-alkali soil and application thereof - Google Patents
Solid-state composite microorganism water flush fertilizer for improving saline-alkali soil and application thereof Download PDFInfo
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Abstract
The invention discloses a solid compound microorganism water flush fertilizer for improving saline-alkali soil and application thereof. The raw material components by weight are as follows: 5-10 parts of composite bacterial powder, 5-10 parts of brown sugar, 3-5 parts of monocalcium phosphate, 3-5 parts of monopotassium phosphate, 15-25 parts of urea, 2-5 parts of ferrous sulfate, 2-5 parts of potassium silicate, 2-4 parts of potassium borate and 31-63 parts of soluble starch. The fertilizer is applied to crops in a drip irrigation or flood irrigation mode in the seedling stage and the seedling turning stage of the crops planted in the saline-alkali soil respectively. The invention can reduce the salt content and pH value of the saline-alkali soil, promote the growth of crops, improve the yield of the crops and improve the soil structure and ecological environment of the saline-alkali soil.
Description
Technical Field
The invention belongs to the technical field of saline-alkali soil improvement, and particularly relates to a solid compound microorganism water flush fertilizer for improving saline-alkali soil and application thereof.
Background
Saline-alkali soil is a general term for various salinized soil and alkaline soil. The saline-alkali soil contains a large amount of soluble salts, the pH value of the soil can reach 9.0, the agricultural development and the forestry production are seriously damaged, and the ecological system is damaged. Saline-alkali soil is widely distributed in China, from the tropical zone in the south of China to the cold-warm zone in the north of China, from the east coast to the inland in the west and the west, from the humid area with sufficient rainfall in the monsoon area to the arid area and the desert area in the non-monsoon area, and the like, and is mainly concentrated in the areas with less rainfall in the northwest, the developed regions in the east coast, the developed plains in the northeast agriculture and the plains with lower vigor in the Huang-Huai sea.
At present, biological improvement measures of saline-alkali soil become research hotspots due to the characteristics of environmental friendliness and sustainability. The application of fertilizer containing beneficial microorganisms to crops planted in saline-alkali soil to promote the growth of the crops is an important saline-alkali soil biological improvement measure. The method has important significance for increasing the cultivated land area of China and the sustainable development of agriculture.
Disclosure of Invention
The invention aims to provide a solid compound microorganism water flush fertilizer for improving saline-alkali soil and application thereof, which can promote the growth of crops planted in the saline-alkali soil, thereby reducing the salt content and pH value of the saline-alkali soil.
In one aspect, the invention provides a solid compound microorganism water flush fertilizer for improving saline-alkali soil, which comprises compound bacterial powder, brown sugar, monocalcium phosphate, monopotassium phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch.
Preferably, the solid compound microorganism water flush fertilizer comprises 5-10 parts of the compound bacterial powder, 5-10 parts of brown sugar, 3-5 parts of monocalcium phosphate, 3-5 parts of monopotassium phosphate, 15-25 parts of urea, 2-5 parts of ferrous sulfate, 2-5 parts of potassium silicate, 2-4 parts of potassium borate and 31-63 parts of soluble starch by weight.
Preferably, the solid compound microorganism water flush fertilizer comprises 5 parts of the compound bacterial powder, 7 parts of brown sugar, 3 parts of monocalcium phosphate, 4 parts of monopotassium phosphate, 25 parts of urea, 4 parts of ferrous sulfate, 5 parts of potassium silicate, 3 parts of potassium borate and 50 parts of soluble starch by weight.
Preferably, the solid compound microorganism water flush fertilizer comprises 6 parts of the compound bacterial powder, 5 parts of brown sugar, 4 parts of monocalcium phosphate, 3 parts of monopotassium phosphate, 21 parts of urea, 3 parts of ferrous sulfate, 2 parts of potassium silicate, 3 parts of potassium borate and 40 parts of soluble starch by weight.
Preferably, the solid compound microorganism water flush fertilizer comprises 8 parts of the compound bacterial powder, 10 parts of brown sugar, 5 parts of monocalcium phosphate, 4 parts of monopotassium phosphate, 17 parts of urea, 2 parts of ferrous sulfate, 3 parts of potassium silicate, 4 parts of potassium borate and 31 parts of soluble starch by weight.
Preferably, the solid compound microorganism water flush fertilizer comprises 10 parts of the compound bacterial powder, 8 parts of brown sugar, 3 parts of monocalcium phosphate, 5 parts of monopotassium phosphate, 15 parts of urea, 5 parts of ferrous sulfate, 4 parts of potassium silicate, 2 parts of potassium borate and 63 parts of soluble starch by weight.
Preferably, the complex microbial inoculum comprises verticillium flavum, verticillium chlamydosporia, aspergillus niger, lactobacillus delbrueckii and candida utilis.
Preferably, the bacterial content of the yellow blueish is more than or equal to 2.5 multiplied by 109cfu/g, the bacterial content of the verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of the Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterium content of the lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g, the bacteria content of the candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
On the other hand, the invention also provides application of the solid-state compound microorganism water flush fertilizer, which is applied to crops in a seedling stage and a green turning stage of the crops planted in the saline-alkali soil in a drip irrigation or flood irrigation mode.
Preferably, the application amount of the solid compound microorganism water flush fertilizer in medium and light saline-alkali soil is 75-225kg/hm2The application amount of the solid compound microorganism water flush fertilizer in the severe saline-alkali soil is 300-1125kg/hm2。
The solid compound microorganism water flush fertilizer can promote the growth of crops planted in saline-alkali soil, thereby reducing the salt content and pH value of the saline-alkali soil and improving the soil structure and ecological environment of the saline-alkali soil.
Detailed Description
The invention will be further described with reference to specific embodiments, and the advantages and features of the invention will become apparent as the description proceeds. It should be understood that the examples are illustrative only and are not limiting upon the scope of the invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
In the following description, all methods involved are conventional in the art unless otherwise specified. The starting materials mentioned are all those which are commercially available from the public unless otherwise specified.
The solid compound microorganism water flush fertilizer for improving the saline-alkali soil is prepared by mixing brown sugar, urea, monopotassium phosphate, soluble starch and a compound microbial inoculum according to a certain proportion. The water flush fertilizer is sprayed on crops planted in saline-alkali soil, and can promote the growth of the crops, thereby reducing the salt content and the pH value of the saline-alkali soil and improving the soil structure and the ecological environment of the saline-alkali soil.
In one embodiment of the invention, the solid compound microorganism water flush fertilizer for improving saline-alkali soil is prepared by mixing raw materials consisting of compound microbial inoculum, brown sugar, urea, monopotassium phosphate and soluble starch. The specific preparation process comprises the following steps: step 1, preparing a complex microbial inoculum; and 2, mixing the raw material components.
In the step 1 of preparing the composite microbial inoculum, selecting powder of Talaromyces flavus, powder of Verticillium chlamydosporium, powder of Aspergillus niger, powder of Lactobacillus delbrueckii and powder of Candida utilis, and then compounding the five bacterial powders according to the proportioning relationship by weight to obtain the composite microbial inoculum, wherein the preferred parts are 10-15 parts of the powder of Talaromyces flavus, 5-15 parts of the powder of Verticillium chlamydosporium, 10-20 parts of the powder of Aspergillus niger, 10-20 parts of the powder of Lactobacillus delbrueckii and 15-25 parts of the powder of Candida utilis.
On one hand, lactobacillus delbrueckii and candida utilis are fermented and cultured in corresponding liquid culture media respectively to obtain bacterial liquids, and then thalli are separated from fermentation cultures, dried and concentrated to prepare single-strain solid bacterial powder. The bacterial contents of the two single bacterial strains are respectively as follows: the content of Lactobacillus delbrueckii powder is not less than 3.0 × 1011cfu/g and the bacteria content of the candida utilis powder is more than or equal to 3.5 multiplied by 109cfu/g. On the other hand, the verticillium dahliae, the verticillium chlamydosporia and the aspergillus niger are respectively fermented in corresponding solid culture media to obtain solid cultures, and then the solid cultures are dried and crushed to prepare single-strain solid bacterial powder. The bacterial content of each single bacterial strain powder is respectively as follows: the content of the yellow blue fungus is not less than 2.5 × 109cfu/g, the bacterial content of Verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g and the bacterial content of Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g。
In the step 2 of mixing the raw material components, weighing the raw material components according to a preset weight ratio, and then mixing and uniformly stirring the raw material components to obtain the solid compound microorganism water flush fertilizer. The weight ratio of each component in the raw materials is respectively optimized as follows: 5-10 parts of composite bacterial powder, 5-10 parts of brown sugar, 3-5 parts of monocalcium phosphate, 3-5 parts of monopotassium phosphate, 15-25 parts of urea, 2-5 parts of ferrous sulfate, 2-5 parts of potassium silicate, 2-4 parts of potassium borate and 31-63 parts of soluble starch.
The invention also provides application of the solid-state compound microorganism water flush fertilizer, which is applied to crops by adopting a drip irrigation or flood irrigation mode in the seedling stage and the green turning stage of the crops planted in the saline-alkali soil respectively. The application amount of the fertilizer in medium and light saline-alkali soil is 75-225kg/hm2In severe saline-alkali soilThe application amount is 300-1125kg/hm2。
To help better understand the technical solution of the present invention, the following examples are provided to illustrate the preparation process and application method of the solid-state composite microbial water flush fertilizer of the present invention.
Example one
The raw materials of the solid compound microorganism water flush fertilizer of the embodiment comprise 5 parts of compound bacterial powder, 7 parts of brown sugar, 3 parts of calcium dihydrogen phosphate, 4 parts of potassium dihydrogen phosphate, 25 parts of urea, 4 parts of ferrous sulfate, 5 parts of potassium silicate, 3 parts of potassium borate and 50 parts of soluble starch by weight. The composite microbial inoculum is prepared by mixing 13 parts of verticillium flavum powder, 5 parts of verticillium chlamydosporium powder, 14 parts of aspergillus niger powder, 18 parts of lactobacillus delbrueckii powder and 15 parts of candida utilis powder. The bacteria content of the five kinds of bacteria powder is respectively as follows: the content of the yellow blue fungus is not less than 2.5 × 109cfu/g, the bacterial content of Verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterial content of Lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g and the bacteria content of candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
The solid compound microorganism water flush fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing powder of verticillium flavum, powder of verticillium chlamydosporium, powder of aspergillus niger, powder of lactobacillus delbrueckii and powder of candida utilis to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the composite bacterial powder, brown sugar, monocalcium phosphate, monopotassium phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch together, stirring and uniformly mixing to obtain the solid composite microbial flush fertilizer 1.
The application method of the solid compound microorganism water flush fertilizer 1 comprises the following steps: in the seedling stage and the green turning stage of crops planted in saline-alkali soil respectively, the solid compound microorganism irrigation fertilizer 1 is irrigated by adopting drip irrigation or flood irrigationThe method is applied to crops. The application amount of the solid compound microorganism water flush fertilizer 1 in medium and light saline-alkali soil is 75kg/hm2The application amount of the solid compound microorganism water flush fertilizer 1 in severe saline-alkali soil is 300kg/hm2。
Example two
The raw materials of the solid compound microorganism water flush fertilizer of the embodiment comprise 6 parts of compound bacterial powder, 5 parts of brown sugar, 4 parts of calcium dihydrogen phosphate, 3 parts of potassium dihydrogen phosphate, 21 parts of urea, 3 parts of ferrous sulfate, 2 parts of potassium silicate, 3 parts of potassium borate and 40 parts of soluble starch by weight. The composite microbial inoculum is prepared by mixing 12 parts of verticillium flavum powder, 7 parts of verticillium chlamydosporium powder, 17 parts of aspergillus niger powder, 15 parts of lactobacillus delbrueckii powder and 25 parts of candida utilis powder. The bacteria content of the five kinds of bacteria powder is respectively as follows: the content of the yellow blue fungus is not less than 2.5 × 109cfu/g, the bacterial content of Verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterial content of Lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g and the bacteria content of candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
The solid compound microorganism water flush fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing powder of verticillium flavum, powder of verticillium chlamydosporium, powder of aspergillus niger, powder of lactobacillus delbrueckii and powder of candida utilis to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the composite bacterial powder, brown sugar, monocalcium phosphate, monopotassium phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch together, stirring and uniformly mixing to obtain the solid composite microbial flush fertilizer 2.
The application method of the solid compound microorganism water flush fertilizer 2 comprises the following steps: and respectively applying the solid compound microorganism water flush fertilizer 2 to the crops in a drip irrigation or flood irrigation mode in the seedling stage and the green turning stage of the crops planted in the saline-alkali soil. Solid compoundThe application amount of the combined microorganism water flush fertilizer 2 in the medium and light saline-alkali soil is 120kg/hm2The application amount of the solid compound microorganism water flush fertilizer 2 in severe saline-alkali soil is 600kg/hm2。
EXAMPLE III
The raw materials of the solid compound microorganism water flush fertilizer of the embodiment comprise, by weight, 8 parts of compound bacterial powder, 10 parts of brown sugar, 5 parts of monocalcium phosphate, 4 parts of monopotassium phosphate, 17 parts of urea, 2 parts of ferrous sulfate, 3 parts of potassium silicate, 4 parts of potassium borate and 31 parts of soluble starch. The composite microbial inoculum is prepared by mixing verticillium flavum powder, verticillium chlamydosporium powder, aspergillus niger powder, lactobacillus delbrueckii powder and candida utilis powder, wherein the five bacterial powders are 10 parts of the verticillium flavum powder, 15 parts of the verticillium chlamydosporium powder, 20 parts of the aspergillus niger powder, 10 parts of the lactobacillus delbrueckii powder and 23 parts of the candida utilis powder respectively. The bacteria content of the five kinds of bacteria powder is respectively as follows: the content of the yellow blue fungus is not less than 2.5 × 109cfu/g, the bacterial content of Verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterial content of Lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g and the bacteria content of candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
The solid compound microorganism water flush fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing powder of verticillium flavum, powder of verticillium chlamydosporium, powder of aspergillus niger, powder of lactobacillus delbrueckii and powder of candida utilis to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the composite bacterial powder, brown sugar, monocalcium phosphate, monopotassium phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch together, stirring and uniformly mixing to obtain the solid composite microbial flush fertilizer 3.
The application method of the solid compound microorganism water flush fertilizer 3 comprises the following steps: and respectively applying the solid compound microorganism water flush fertilizer 3 to the crops in the seedling stage and the green turning stage of the crops planted in the saline-alkali soil by adopting a drip irrigation or flood irrigation mode. Solid compound microorganism water flush fertilizer 3 in medium and lightThe application amount of saline-alkali soil is 180kg/hm2The application amount of the solid compound microorganism water flush fertilizer 3 in severe saline-alkali soil is 900kg/hm2。
Example four
The raw materials of the solid compound microorganism water flush fertilizer of the embodiment comprise, by weight, 10 parts of compound bacterial powder, 8 parts of brown sugar, 3 parts of monocalcium phosphate, 5 parts of monopotassium phosphate, 15 parts of urea, 5 parts of ferrous sulfate, 4 parts of potassium silicate, 2 parts of potassium borate and 63 parts of soluble starch. The composite microbial inoculum is prepared by mixing 15 parts of verticillium flavum powder, 11 parts of verticillium chlamydosporium powder, 10 parts of aspergillus niger powder, 20 parts of lactobacillus delbrueckii powder and 18 parts of candida utilis powder. The bacteria content of the five kinds of bacteria powder is respectively as follows: the content of the yellow blue fungus is not less than 2.5 × 109cfu/g, the bacterial content of Verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterial content of Lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g and the bacteria content of candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
The solid compound microorganism water flush fertilizer is prepared by the following steps.
Step 1, preparing a composite microbial inoculum, and uniformly mixing powder of verticillium flavum, powder of verticillium chlamydosporium, powder of aspergillus niger, powder of lactobacillus delbrueckii and powder of candida utilis to obtain the composite microbial inoculum.
And 2, mixing the raw material components, adding the composite bacterial powder, brown sugar, monocalcium phosphate, monopotassium phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch together, stirring and uniformly mixing to obtain the solid composite microbial flush fertilizer 4.
The application method of the solid compound microorganism water flush fertilizer 4 comprises the following steps: and respectively applying the solid compound microorganism water flush fertilizer 4 to the crops in the seedling stage and the green turning stage of the crops planted in the saline-alkali soil by adopting a drip irrigation or flood irrigation mode. Application amount of solid compound microorganism water flush fertilizer 4 in medium and light saline-alkali soil each timeIs 225kg/hm2The application amount of the solid compound microorganism water flush fertilizer 4 in severe saline-alkali soil is 1125kg/hm2。
In order to help better understand the technical scheme of the invention, a test example of crop planting is provided below for illustrating the application effect of the invention.
The first test example: effect of solid compound microorganism water flush fertilizer on improvement of severe saline-alkali soil and influence on rice growth
The same saline-alkali field block is selected in the original market of Pinus of Jilin province, the basic physicochemical property of field soil is pH value 8.75, the total salt content of the soil of a plough layer is 7.60g/kg, the alkalization degree is 25.3%, the organic matter content is 14.82g/kg, the total nitrogen content is 1.08g/kg, the quick-acting phosphorus content is 22.03mg/kg, the quick-acting potassium content is 182mg/kg, and the alkaline hydrolysis nitrogen content is 31.10 mg/kg. 5 groups of experimental designs, including 4 experimental groups and 1 control group, each group of experimental designs 3 experimental cells, each area of 30m2All test cells are randomly distributed.
The test group is applied with chemical fertilizers and the solid compound microorganism water flush fertilizer prepared by the invention. The specific fertilization mode is that urea, calcium superphosphate and potassium sulfate are used as base fertilizers to be applied to soil, and the fertilization amounts of the three fertilizers are 160kg/hm of urea respectively2Calcium superphosphate 90kg/hm2And potassium sulfate 90kg/hm2. Applying urea once at seedling stage, green turning stage and tillering stage of rice, wherein the urea applying amount is 25kg/hm2And green turning period of 20kg/hm2And tillering stage of 20kg/hm2. The urea is first dissolved in clear water and then applied to soil by flood irrigation. The solid compound microorganism water flush fertilizer is applied for 3 times, and is respectively applied in rice seedling stage additional fertilizer, rice green turning stage additional fertilizer and rice tillering stage additional fertilizer. When the solid compound microorganism water flush fertilizer is applied each time, the solid compound microorganism water flush fertilizer is uniformly mixed with urea, then the mixture is dissolved in clear water, and then the mixture is applied to soil in a large water flood irrigation mode. In 4 test groups, the amount of the solid-state composite microbial water flush fertilizer 1 applied per time was 300kg/hm2The application amount of the solid compound microorganism water flush fertilizer 2 is 600kg/hm2The application amount of the solid-state composite microorganism water flush fertilizer 3 is 900k per timeg/hm2The application amount of the solid compound microorganism water flush fertilizer 4 is 1125kg/hm2. The control group did not apply the solid compound microorganism water flush fertilizer, and the fertilizer application method was the same as the test group.
Selecting Songliao No. 6 as test variety, 60kg/hm in 4-month middle ten days2Sowing the seeds at the sowing rate, performing the same conventional management on each district, and harvesting in the last 9 th of month. After harvesting the rice, the yield of each cell is counted, and the average cell yield of each group is calculated. And simultaneously, taking a soil sample to measure the pH, the total salt content and the alkalization degree of the soil in each cell, and calculating the average pH, the average total salt content and the average alkalization degree of each group of soil. The results are shown in Table 1.
TABLE 1
As can be seen from the data in Table 1, the pH, total salt content and alkalization degree of the soil were significantly lower than those of the rice plants of the 4 groups to which the water flush fertilizer was applied, while the yield of rice in the plots was significantly higher than those of the controls. Therefore, the prepared water flush fertilizers 1-4 can obviously improve saline-alkali soil, reduce the pH value and the salt content of the soil, promote the growth of rice and improve the yield of the rice.
Test example two: effect of solid compound microorganism water flush fertilizer on improvement of mild saline-alkali soil and influence on rice growth
The same saline-alkali field block is selected in the original market of Pinus of Jilin province, the basic physicochemical property of the field soil is that the pH value is 8.40, the total salt content of the soil of the plough layer is 2.45g/kg, the alkalization degree is 18.4%, the organic matter content is 9.90g/kg, the total nitrogen content is 1.18g/kg, the quick-acting phosphorus content is 3.38mg/kg, the quick-acting potassium content is 320mg/kg, and the alkaline hydrolysis nitrogen content is 42 mg/kg. The experimental design 5 groups comprise 4 experimental groups and 1 control group, each group of experimental designs comprises 3 experimental cells, and the area of each experimental cell is 20m2All experimental cells are randomAnd (4) distribution.
The fertilizer application mode of the test group is to apply the organic fertilizer and the diammonium phosphate as base fertilizers into soil, and the fertilizer application amount of the two fertilizers is respectively 1500kg/hm of the organic fertilizer2And diammonium phosphate 215kg/hm2. The solid compound microorganism water flush fertilizer is applied for 3 times, and is respectively applied in rice seedling stage additional fertilizer, rice green turning stage additional fertilizer and rice tillering stage additional fertilizer. When the solid compound microorganism water flush fertilizer is applied each time, the solid compound microorganism water flush fertilizer is firstly dissolved in clear water and then applied to soil in a drip irrigation mode. In 4 test groups, the amount of the solid-state composite microbial water flush fertilizer 1 applied per time was 75kg/hm2The application amount of the solid compound microorganism water flush fertilizer 2 is 120kg/hm2The application amount of the solid compound microorganism water flush fertilizer 3 is 180kg/hm2The amount of the solid-state composite microorganism applied in the water flush fertilizer 4 per application was 225kg/hm2. The control group does not apply the solid compound microorganism water flush fertilizer, and the base fertilizer applies the organic fertilizer of 1500kg/hm2And diammonium phosphate 430kg/hm2。
Selecting Songliao No. 6 as test variety, 60kg/hm in 4-month middle ten days2Sowing the seeds at the sowing rate, performing the same conventional management on each district, and harvesting in the last 9 th of month. After harvesting the rice, the yield of each cell is counted, and the average cell yield of each group is calculated. And simultaneously, taking a soil sample to measure the pH, the total salt content and the alkalization degree of the soil in each cell, and calculating the average pH, the average total salt content and the average alkalization degree of each group of soil. The results are shown in Table 2.
TABLE 2
As can be seen from the data in Table 2, the pH, total salt content and alkalization degree of the rice planting soil of 4 groups applied with the solid compound microorganism water flush fertilizer are all obviously lower than those of the control, and the rice yield of the plot is obviously higher than that of the control. Therefore, the prepared solid compound microorganism water flush fertilizer 1-the solid compound microorganism water flush fertilizer 4 can obviously improve saline-alkali soil, reduce the pH value and the salt content of the soil, promote the growth of rice and improve the yield of the rice.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (10)
1. A solid compound microorganism water flush fertilizer for improving saline-alkali soil comprises compound bacterial powder, brown sugar, calcium dihydrogen phosphate, potassium dihydrogen phosphate, urea, ferrous sulfate, potassium silicate, potassium borate and soluble starch.
2. The solid-state composite microbial fertilization fertilizer of claim 1, wherein: the solid compound microorganism water flush fertilizer comprises, by weight, 5-10 parts of compound bacterial powder, 5-10 parts of brown sugar, 3-5 parts of monocalcium phosphate, 3-5 parts of monopotassium phosphate, 15-25 parts of urea, 2-5 parts of ferrous sulfate, 2-5 parts of potassium silicate, 2-4 parts of potassium borate and 31-63 parts of soluble starch.
3. The solid-state composite microbial fertilization fertilizer of claim 2, wherein: the solid compound microorganism water flush fertilizer comprises, by weight, 5 parts of compound bacterial powder, 7 parts of brown sugar, 3 parts of monocalcium phosphate, 4 parts of monopotassium phosphate, 25 parts of urea, 4 parts of ferrous sulfate, 5 parts of potassium silicate, 3 parts of potassium borate and 50 parts of soluble starch.
4. The solid-state composite microbial fertilization fertilizer of claim 2, wherein: the solid compound microorganism water flush fertilizer comprises 6 parts of compound bacterial powder, 5 parts of brown sugar, 4 parts of calcium dihydrogen phosphate, 3 parts of potassium dihydrogen phosphate, 21 parts of urea, 3 parts of ferrous sulfate, 2 parts of potassium silicate, 3 parts of potassium borate and 40 parts of soluble starch by weight.
5. The solid-state composite microbial fertilization fertilizer of claim 2, wherein: the solid compound microorganism water flush fertilizer comprises 8 parts of compound bacterial powder, 10 parts of brown sugar, 5 parts of monocalcium phosphate, 4 parts of monopotassium phosphate, 17 parts of urea, 2 parts of ferrous sulfate, 3 parts of potassium silicate, 4 parts of potassium borate and 31 parts of soluble starch by weight.
6. The solid-state composite microbial fertilization fertilizer of claim 2, wherein: the solid compound microorganism water flush fertilizer comprises, by weight, 10 parts of compound bacterial powder, 8 parts of brown sugar, 3 parts of monocalcium phosphate, 5 parts of monopotassium phosphate, 15 parts of urea, 5 parts of ferrous sulfate, 4 parts of potassium silicate, 2 parts of potassium borate and 63 parts of soluble starch.
7. The solid state composite microbial fertilization fertilizer of any one of claims 1 to 6, wherein: the complex microbial inoculum comprises verticillium flavum, verticillium chlamydosporium, aspergillus niger, lactobacillus delbrueckii and candida utilis.
8. The solid-state composite microbial fertilization fertilizer of claim 7, wherein: the content of the yellow blue fungus is more than or equal to 2.5 multiplied by 109cfu/g, the bacterial content of the verticillium chlamydosporium is more than or equal to 1.5 multiplied by 109cfu/g, the bacterial content of the Aspergillus niger is more than or equal to 1.5 multiplied by 1010cfu/g, the bacterium content of the lactobacillus delbrueckii is not less than 3.0 multiplied by 1011cfu/g, the bacteria content of the candida utilis is more than or equal to 3.5 multiplied by 109cfu/g。
9. Use of the solid composite microbial fertilization fertilizer according to any one of claims 1 to 9, wherein: and respectively applying the solid compound microorganism water flush fertilizer to the crops in the seedling stage and the green turning stage of the crops planted in the saline-alkali soil in a drip irrigation or flood irrigation mode.
10. Use according to claim 9, characterized in that: the application amount of the solid compound microorganism water flush fertilizer in medium and light saline-alkali soil is 75-225kg/hm2The application amount of the solid compound microorganism water flush fertilizer in the severe saline-alkali soil is 300-1125kg/hm2。
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| CN112573970A (en) * | 2020-11-05 | 2021-03-30 | 东北农业大学 | Solid-state compound microbial foliar fertilizer for improving saline-alkali soil and application thereof |
| CN112592222A (en) * | 2020-11-05 | 2021-04-02 | 东北农业大学 | Solid-state composite microorganism rooting agent for improving saline-alkali soil and application thereof |
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Application publication date: 20210312 |