JPH11314987A - Fermented rice bran fertilizer and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form rice bran into the fertilizer in a shorter period without causing any malodor by decomposing sacharides such as cellulose and starch, contained in rice brain precedingly and decomposing protein in the rice bran, strong in odor and slow in decomposition rate subsidiarily. SOLUTION: This fast acting fertilizer is produced by preparing a microbial material for rice bran fermentation by mixing starch or a chitinous substance into full-ripe cattle feces compost, full-ripe rice straw compost or full-ripe wild grass compost to obtain a mixture, fermenting the mixture, blending this microbial material with rice brain to obtain a blend, adding water to the blend, and again fermenting the resulting material while aerating it, that is, by preparing a microbial material for rice bran fermentation by mixing a material contg. vegetable starch or a chitinous substance into full-ripe rice straw compost, full-ripe wild grass compost or the like to obtain a mixture and again subjecting the mixture to aerobic fermentation to enhance the content of actinomycetes and filamentous fungi, blending this microbial material with rice bran to obtain a blend, adding water to the blend, and again subjecting the resulting material to aerobic fermentation to produce a fast-acting fertilizer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for producing a fertilizer having a fast-acting and long-lasting effect, including a comprehensive fertilizer component, by stepwise fermentation of naturally occurring microorganisms using rice bran as a raw material.

[0002]

2. Description of the Related Art The present inventor has invented Japanese Patent Application Laid-Open No. 9-169587 for a technique for converting a rice bran fermented product into organic fertilizer. The disclosed invention relates to a rice bran fermented product in which rice bran is fermented using bacteria used in food production, a third fermentation is carried out by the same group of bacteria as above, and a rice bran fermented product containing a large amount of yeast is obtained. Things. However, as described in the above-mentioned published invention, rice bran generally contains components necessary as fertilizers for crops, but it contains about 18% of fats and oils and also has a high carbon content, so that decomposition is delayed and fermentation odor is reduced. Due to the violence, there was little intentional application as fertilizer except for some use as compost.

[0003]

DISCLOSURE OF THE INVENTION The present invention gives priority to the decomposition of carbohydrates such as fibers and starch contained in rice bran, and promotes fermentation based on the decomposition of proteins with intense fermentation odors. Developed a microbial material for rice bran fermentation that is easy to handle without causing any component loss and generates fermentation by using the developed material to ferment using rice bran in a short time to ferment rice bran with a high carbon content and high oil and fat content. It is intended to establish industrial production.

[0004]

The present invention employs the following means in order to solve the above-mentioned problems. As a culture medium for microbial materials for rice bran fermentation, actinomycetes,
Uses ripe cow dung fertilizer containing many microorganisms having various functions such as filamentous fungi and bacteria, ripe compost made from rice straw, wild grass, etc.
Microbial material for rice bran fermentation with a high content of actinomycetes and filamentous fungi and a low content of bacteria by fermenting a mixture of potato starch, vegetable starch such as buckwheat husks, and chitin-containing substances. To get By fermenting the above rice bran fermentation microorganisms using rice bran, actinomycetes, fermentation mainly based on filamentous fungi proceed, and then the yeast-based fermentation leads to a decrease in the death of yeast, and then actinomycetes spores / filaments. The fermentation proceeds to a fast-acting fermented rice bran containing fungal spores and some yeast, and the product is finished continuously.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Microbial materials for rice bran fermentation include, as medium raw materials, radioactive bacteria such as fully-ripened cow dung compost, rice straw wild grass and the like as raw materials, fertilized soil sufficiently subjected to compost, and the like.
Fungi, fungi containing a lot of bacteria, starch, potato starch, vegetable starch such as buckwheat hulls, chitin-rich thing is added and re-fermented,
Thereby, the content of actinomycetes and filamentous fungi increases, and the content of bacteria decreases. In the rice bran fermentation using the rice bran, the decomposition of fibers and carbohydrates mainly by the action of actinomycetes and filamentous fungi precedes, and then the yeast contained in the natural or raw materials such as rice bran grows and shifts to yeast fermentation. At the end of yeast fermentation, yeasts die and decrease, and among rice bran fermentations, there are actinomycetes spores, filamentous fungal spores, and fermentation products containing some yeasts, including organic nitrogen and fast-acting ammoniacal bodies. It is a fast-acting rice bran fermentation fertilizer that contains a large amount of fertilizer components such as nitrogen, fast-acting water-soluble phosphoric acid, water-soluble potassium, and water-soluble magnesium that are sufficiently absorbed from the early growth stage of the crop. In order to promote fermentation mainly by actinomycetes and filamentous fungi and to shift to yeast fermentation at an early stage, it is necessary to promote the fermentation by mixing about 2 to 3% of a fast-acting rice bran fermentation fertilizer which is the final product of fermentation. it can. In addition, as a method of preventing deterioration due to various bacteria, it is crucial to increase the density of bacteria that are the main component of fermentation in each stage of fermentation in a short period of time. For this purpose, a Ph regulator is added from the beginning of fermentation to adjust the acidity to the range of 6.2 to 6.5, thereby performing stable fermentation and preventing deterioration.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Detailed examples of the present invention will be described separately for a method for producing a microbial material for rice bran fermentation and a method for producing a fast-acting rice bran fermentation fertilizer using the same material. However, the present invention is not limited to this example. Not something.

Example 1 Method for Producing Microbial Materials for Rice Bran Fermentation Raw Materials Ripe beef manure compost and corn starch fermented by mixing buckwheat husks Production method About 3% by volume of buckwheat hulls were mixed and fermented beef dung compost and corn starch were mixed with 2 corn starch. ３3%, water is added so as to be about 45% of the dry weight, and the mixture is agitated. The fermentation tank A shown in FIG.
It is fermented and ripened for about 35 to 45 days in winter and brought to room temperature to produce a product. As shown in FIG. 1, the fermentation tank A has a stirrer 1 provided in a 60 m long tank so as to be reciprocable in the length direction, and a vent pipe for exhausting into a tank also laid in the length direction. The raw material supplied from the raw material input port 3 is sent to the discharge port 4 by the agitator 1 under ventilation. The storage period during which the fermentation ability of the rice bran fermenting microorganism material as a product does not decrease is 4 months in winter or in a refrigerator at about 10 ° C.
It is about 0 to 50 days, and about 25 to 30 days in summer.

Example 2 Method for producing fast-acting rice bran fermentation fertilizer by fermentation lane Raw material Rice bran, microbial material for rice bran fermentation according to Example 1, acidity regulators such as ammonium sulfate, water, and fast-acting rice bran fermentation fertilizer according to Example 2; The rice bran and the microbial material for rice bran fermentation are kneaded with water, and heated in fermentation lane B shown in FIG. 2 provided with ventilation and a heating device, and kept at 25 to 30 ° C.
Leave for about a day to secure sufficient fermentation heat. The fermentation lane B had a length of 60 as shown in FIG.
m tanks are divided into four sections, and a boiler 6
A heating pipe 5 from the blower 7 is laid, and a ventilation pipe 2 from a blower 7 is laid in each of the remaining three sections toward the discharge port 4, and a reciprocating stirrer 1 is provided in the tank. After the fermentation heat is sufficiently secured, the fermentation lane B is continuously stirred several times a day by the stirrer 1 in the fermentation lane B.
And ferment for about 10 days. Then, Example 1
About 2% of the microbial material for rice bran fermentation, the water content is corrected to about 30 to 35% of the dry amount, and the fermentation is continued for about 5 days to finish. At this point the fermentation heat is 20 ° C
It has become about. After the completion of the above, before the fermentation heat is reduced, the mixture is transferred to the fermentation fermenter C shown in FIG. 3 and agitated once every several days to be aged for 10 to 12 days to obtain a product. As shown in FIG. 3, the fermentation fermentation tank C is divided into four equal-length tanks each having a length of 36 m, and a heating pipe 8 from a boiler 6 is laid in a section of the input port 3, and is divided into two subsequent sections. Is provided with the ventilation pipe 2 from the blower 7 and the section of the discharge port 4 is not laid at all. Then, the raw materials supplied to the input port 3 are appropriately sent to successive sections and are used so as to be stored as products in the output section 4.

Example 3 Method for Producing Ripe Rice Straw and Wild Grass Fast-Acting Rice Bran Fermented Fertilizer Raw Materials Ripe rice straw and wild grass, microbial material for rice bran fermentation according to Example 1, acidity regulators such as ammonium sulfate, water and rapid-acting effect according to Example 2 Fertilizer Production method Mix the rice bran and the above ingredients and mix well with water.
Heat it on fermentation tank C until fermentation heat is generated.
The temperature is kept at 5 to 30 ° C., and the mixture is allowed to stand for about 4 to 5 days to secure sufficient fermentation heat. Thereafter, the mixture is sequentially transferred to the section of the tube 2 with stirring every two to three days, and after about ten days, about 2% of the microbial material for rice bran fermentation is mixed again to reduce the water content to about 30 to 35% of the dry matter. After the correction, the fermentation is continued for about 15 to 20 days, and the fermentation is terminated. At this point, the fermentation heat is about 20 ° C.
During the fermentation, the blower 7 is set to operate when the fermentation temperature reaches about 35 ° C. in order to avoid an excessively high temperature.

Bacterial analysis [0010] Results of investigation on the contents of actinomycetes, bacteria and filamentous fungi contained in the rice bran fermenting microbial material and the fast-acting rice bran fermentation fertilizer produced by the methods of Examples 1 to 3 Was as follows.

Medium of each bacterium and culture method Composition of actinomycete medium; humic acid 0.1 g, sodium monohydrogen phosphate 0.05 g, potassium chloride 1.7 g, magnesium sulfate 0.005 g, iron sulfate 0.01 g, calcium carbonate 0.02 g, vitamin Group B (thiamine hydrochloride, riboflavin, niacin, pyridoxine hydrochloride, inositol, calcium pantothenate, calcium P-aminobenzoate, 0.5 mg each, and biotin 0.25 g), cyclohexamide
50mg, agar 18g, distilled water 1l, PH-7.2 (Vitamin B group and cyclohexamide were filtered and sterilized) Culture; 30 ° C for 3-4 weeks Bacterial medium composition, LB medium (Kabisaidin 100
mg / titer added) 10 g of peptone, 5 g of yeast extract, sodium chloride
10 g, 1 l of distilled water, 15 g of agar, PH-7.5 culture; culture at 37 ° C. for 24 hours Inverted culture Composition of filamentous fungus medium, PDA medium (with chloramphenicol added at 150 ppm) Peeled potatoes are diced into 1 cm square rhinoceros , 2
00 g was boiled in 1 liter of distilled water for 20 minutes, filtered, filled to 1 liter after filtration, added with 20 g of dextrose, 15 g of agar,
PH-5.0 to 5.5 culture; culture at 30 ° C for 6 days Yeast medium composition, YM medium (with chloramphenicol 150 ppm added) Yeast culture 3 g, glucose 10 g, peptone 5 g,
Malt extract 3g, distilled water 1l, agar 15g, PH-5.5
~ 6.0 culture; 4 days at 30 ° C

Method of Investigating the Number of Bacteria The number of bacteria per 1 g of the sample was examined by a dilution plate method. The microbial content of the microbial material for rice bran fermentation obtained by the production method of Example 1 is as shown in the above analysis result table, and actinomycetes and filamentous fungi having strong power of mainly decomposing fibers and carbohydrates coexist. The ratio of bacteria having a high content and a strong proteolytic power is decreasing, and short-term, odorless fermentation of rice bran is being promoted with this bacterial composition. In addition, the fast-acting rice bran fermented fertilizer obtained by the production methods of Examples 2 and 3 also has a bacterial amount close to that of the microbial material for fermentation. The yeast naturally grown during the fermentation of rice bran is reduced in number and reduced in number, and as shown in the results of fertilizer analysis, the rapid-acting ammonia nitrogen is increasing, indicating fast-acting.

Results of Fertilizer Analysis The amounts of fertilizer components of the fast-acting rice bran fermented fertilizer obtained by the production methods of Examples 2 and 3 are as shown in the table below. Fertilizer analysis was performed by the fertilizer analysis method indicated by the Ministry of Agriculture, Forestry and Fisheries. The component content of the fast-acting rice bran fermentation fertilizer is 6.26% of total nitrogen in dry conversion, and 2.84% of aqueous ammonia-nitrogen
%, Total phosphoric acid 10.53% in dry conversion, water-soluble phosphoric acid 6.68
%, Total dry weight 4.42%, water soluble soluble 4.39%,
3.10% of total magnesium and 1.63% of water-soluble magnesium in dry matter, the content of components is remarkably higher than other rice bran fermented products and raw rice bran, and the water-soluble components used immediately in crops after application are remarkably high. In addition, the carbon content is also low, and the C / N value is extremely low, confirming the rapid effect.

Effect of the fast-acting rice bran fermentation fertilizer on the initial growth of the crop (komatsuna) The fast-acting rice bran fermentation fertilizer of the present invention and the rice bran fermentation application zone of the comparative example were provided, and the nitrogen content was 20 kg per 10 ares.
The test was conducted on pots using Komatsuna to examine the effect of the fast-acting rice bran fermented fertilizer on the initial growth. A fertilizer-free zone was established as a standard. As a result, the germination rate and the adverse effect on the initial growth, which are the most problematic when the organic fertilizer is applied, are shown. In this test, the germination rate of the fast-acting rice bran fermentation fertilizer is 1%.
00%, rice bran fermented product of comparative example 67%, fertilizer-free 8
At 7%, no adverse effect on germination was observed. In addition, in the initial growth, the growth of the section to which the fast-acting rice bran fermented fertilizer was applied was remarkably promoted, and it was confirmed that the fast-acting rice bran fermented fertilizer of the present invention had no adverse effect on the initial growth and was fast-acting. (Summary of test) Test started; August 23, 1997

Effect of Fast-Acting Rice Bran Fermentation Fertilizer on Spinach Herbs A fertilizing effect test of spinach using the fast-acting rice bran fermenting fertilizer of the present invention and a fertilizer exclusively for vegetables mainly comprising chemical fertilizer was conducted.
In the test method, a frame of 1 m ² was provided, and the application rate was set to 20 kg / 10a with a nitrogen component in both sections, and the effect was confirmed. As a result, the fast-acting rice bran fermentation fertilizer section has a higher growth rate from the early germination stage than the vegetable fertilizer section mainly composed of chemical fertilizer, and shows a growth amount more than twice in the harvesting season,
The fast-acting rice bran fermented fertilizer had a remarkable effect even on spinach plants, which had a short growing period, and showed a fast-acting effect. (Summary of test) Start of test; September 27, 1997 Harvest season survey; November 15

Effect of fast-acting rice bran fermented fertilizer on Chinese cabbage Chinese cabbage is grown at a time when the temperature is low and has a growth period of 60 to 70.
It is a vegetable that needs about a day, requires vigorous initial growth, and needs to maintain fertilization until the harvest. The fermentation reaction of the quick-acting rice bran fermentation fertilizer to such a demand was confirmed. In addition to the conventional fertilizer application for the test, the fast-acting rice bran fertilizer fertilizer section contains a fast-acting rice bran fertilizer per share,
Fertilization reaction was confirmed by applying 25 g. As a result, the fast-acting rice bran fermentation fertilizer zone grew from the beginning, and the fertilizer effect continued until the harvest season, leading to high quality and high yield. In addition, in the plot to which the fast-acting rice bran fermentation fertilizer was applied, root rot was significantly reduced as compared with the conventional plot. (Summary of the study) Study started; August 24, 1997 Survey results;

[0017]

According to the present invention, there is an effect that rice bran can be used as a fertilizer in a short time without fermentation odor by using ripe cow dung compost as a raw material for fermentation.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a fermenter used in the present invention.

FIG. 2 is a schematic plan view of a fermentation lane used in the present invention.

FIG. 3 is a schematic plan view of an aging fermenter used in the present invention.

[Explanation of symbols]

 A Fermentation tank B Fermentation lane C Aging fermentation tank 1 Stirrer 2 Ventilation tube 3 Inlet 4 Outlet 5 Heating tube 6 Boiler 7 Blower 8 Heating tube

Claims (4)

[Claims] 1. A microbial material for fermenting rice bran in which the content of actinomycetes and filamentous fungi has been increased by adding a substance containing plant starch and chitin to a ripe cow dung compost and aerobically refermenting the rice bran. A fermented fermented rice bran, which is mixed with water, fermented aerobically and fermented again to form a fast-acting fertilizer. 2. A microbial material for rice bran fermentation in which the content of actinomycetes and filamentous fungi is increased by adding a substance containing vegetable starch and chitin to a mature rice straw and a mature wild grass compost and aerobically refermenting the same. Is added to rice bran, added to water, and fermented aerobically again to produce a fast-acting fertilizer. 3. The fermentation period is shortened by adding a Ph adjuster such as ammonium sulfate in the fermentation to adjust the acidity to a favorable condition, thereby preventing contamination by various bacteria and performing a stable fermentation. 2. Rice bran fermentation fertilizer. 4. The content of actinomycetes and filamentous fungi by adding a substance containing starch and chitin to one of ripe cow dung compost, ripe rice straw compost, and ripe wild grass compost and aerobically refermenting them. A method for producing fermented rice bran, comprising mixing rice bran fermenting microbial material with increased porosity, adding water, aerobically refermenting the rice bran, and turning the rice bran into a fertilizer without a bad smell.