JPH0735316B2 - Fermentation fertilizer and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fermentation fertilizer using a chlorella culture waste liquid discharged after culturing chlorella or a chlorella extract extraction residue discharged when a chlorella extract is extracted. The present invention relates to a manufacturing method.

(Prior Art) As the age of inorganic fertilizer continues and the fertility is being lost, the importance of organic farming is being emphasized. Also, at present,
Materials such as rice straw have become scarce due to the reduction of rice, and wood bamboo and other materials have been used in large amounts in place of them. However, since the outer skins of these materials such as wood bamboo are tightly covered with lignin, it takes a very long time to mature, and as a result, semi-mature ones are used. . However, use of such a semi-ripened fertilizer causes root damage and suppresses development, resulting in a decrease in yield and a decrease in quality.

For this reason, various studies have recently been conducted for the purpose of shortening the aging period of organic materials. As a result of these studies, for example, the one disclosed in Japanese Patent Publication No. 61-49277 is known. This invention is characterized by adding chlorella and photosynthetic bacteria when producing a fertilizer using various organic materials,
With such a constitution, the whole fermentation period of various organic materials is shortened, and a high quality and specific plant physiological action is intended to be given.

(Problems to be Solved by the Invention) However, the conventional fermentation fertilizer using chlorella as described above has a problem that the cost is increased first. In addition, conventional fermentation fertilizer requires about 6 months for fermentation,
As a result, there is a problem that it is not possible to put it on an industrial production line.

By the way, it is known that nitrogen, phosphate, potassium and other trace elements which are the three elements of fertilizers have a great influence on the enhancement of soil fertility and the promotion of root development. And when nitrogen, phosphate and potassium are deficient, root development,
While elongation slows down and rooting is likely to occur, when trace elements such as magnesium and iron are deficient, the formation of chlorophyll is hindered and a remarkable yellowing phenomenon is observed. However, the chlorella used in conventional fertilizers is
There is a problem that the content of phosphate, potassium and other trace elements is not so large, and as a result, the effect on root development and elongation is small. Therefore, the present inventor
Focusing on the extraction residue of the chlorella extract and the chlorella culture waste liquid which have been conventionally dumped in the sea, the inventors have found that these contain a large proportion of the three elements of fertilizer and other trace elements, and have completed the present invention.

It is an object of the present invention to provide a fermenting fertilizer and a method for producing the same, which is capable of increasing the fertility at a low cost and further shortening the fermentation period.

(Means for Solving the Problems) Therefore, in the present invention, the fermented fertilizer is characterized by containing one or two selected from the group consisting of chlorella extract extraction residue and chlorella culture waste liquid, and various organic materials. As a method for producing a fermented fertilizer using various organic materials, characterized by adding one or two selected from the group consisting of chlorella extract extraction residue and chlorella culture waste liquid. It is designed to be configured. And especially in the case of wood bamboo with a lot of fibrous material,
It is desirable to perform a humid heat treatment.

(Example) Hereinafter, the Example of this invention is described.

First, as various organic materials, oil dregs, soybean dregs, rice bran, animal residues, wood bamboo, etc. or rice husks are used. As a preferred example, a mixture in which oil dregs, soybean dregs, rice bran, and animal residues are mixed, and the chlorella culture waste liquid 2 described later is added thereto to adjust the water content to 60% to 65% can be mentioned.

The chlorella culture waste liquid 2 and the chlorella extract extraction residue 1 are obtained as follows. First, after culturing Chlorella in a culture medium, the Chlorella cells are separated and removed by centrifugation or the like, whereby Chlorella culture waste liquid 2 is obtained. In addition, 1 to 1,000 g of dry weight of algal cells to 1 part of water
After suspending and contacting at 50 to 150 ° C for 0.5 to 120 minutes, the chlorella extract from which the alga bodies are separated by centrifugation or the like is extracted, and the separated alga bodies are dried to obtain a chlorella extract extraction residue 1. .

Here, Tables 1 and 2 show the analysis results of the component compositions of the chlorella extract extraction residue 1 and the chlorella culture waste liquor 2 obtained as described above.

On the other hand, the component composition of chlorella is dominated by proteins, lipids, etc., and the contents of the three elements of fertilizers, such as nitrogen, phosphate, and potassium, and trace elements such as magnesium, iron, etc., are insignificant.

The present inventor paid attention to the contents of the three elements of fertilizers such as nitrogen, phosphate and potassium and trace elements such as magnesium and iron, and selected from the group consisting of chlorella extract extraction residue and chlorella culture waste liquid instead of chlorella. Alternatively, by adding the two to various organic materials and fermenting them, it has succeeded in producing a fermenting fertilizer at low cost and capable of enhancing soil fertility (increasing fertilizing effect). According to the present invention, it is possible to effectively use the chlorella extract extraction residue and the chlorella culture waste liquid, which have been conventionally dumped in the sea, and have a secondary effect that it also suppresses the progress of marine pollution. ing.

Next, one aspect of the method for producing a fertilizer according to the present invention will be described with reference to the drawings.

As shown in Fig. 1, first, an organic material 3 consisting of 300 kg of oil dregs, 300 kg of soybean dregs, 300 kg of rice bran, and 100 kg of animal residue is mixed and deposited at a height of 20 cm (A). Then, the chlorella culture waste liquid 2 obtained as described above is added to adjust the total water content to 60% to 65% (B). Here, this moisture content may be measured by a moisture meter, but it may be confirmed that moisture oozes out between the fingers by tightly grasping with one hand. Further, when 3 kg of the chlorella extract extraction residue 1 is added in the water content adjusting step (B), a higher quality fermentation fertilizer can be obtained. As described above,
After adjusting to 60% to 65%, redeposit to a height of 50 cm to 60 cm (C). Then, the temperature of the entire organic material 3 gradually rises to reach 45 ° C to 50 ° C. Then, from this point, full-scale fermentation of the organic material starts (D). After this,
The organic material 3 is cut back several times (E). If the water content becomes 60% or less during the cutting operation, the chlorella culture waste liquid 2 is replenished each time to adjust the total water content to 60% to 65%.

In the summer, sweet fragrance begins to be emitted in 3 weeks to 1 month, and the fermentation is at the end (F).
In winter, it will take about one and a half months to reach the end. Thus, the fermentation fertilizer 5 which is the object of the present invention can be obtained.

Incidentally, only the chlorella extract extraction residue 1 may be used as an additive, but in that case, the cost is slightly higher than that of the chlorella culture waste liquid 2.

In addition, organic materials such as wood bamboo materials (for example, chips, sawdust, and shavings) have their outer skins tightly covered with lignin, and since the outer skins of rice husks are waxy and hard, they must be decomposed unless they are decomposed. The aging period becomes very long (by the way, conventionally, it took about one year to complete the fermentation). The present inventor has found the following treatment method as a result of repeated studies for shortening the fermentation period. That is, when the above wood bamboo material or rice husk is used as an organic material, water is first boiled at 100 ° C., and the steam is subjected to a humidification heat treatment for about 1 hour, followed by a fermentation treatment. The present inventor confirmed that the fermentation was completed in 1 to 3 months by performing the humidification heat treatment in this manner. Since the above-mentioned wood bamboo materials and rice husks have a high carbon rate, it is necessary to reduce the carbon rate to 40 or less by adding the nitrogen-containing material 4 (lime nitrogen, ammonium sulfate or excrement) (see FIG. 1). ).

Here, Table 3 shows the results of examining the growth of the main roots of cucumber using the above-mentioned fermentation fertilizer 5 and conventional general fertilizers.

As described above, when the fermented fertilizer 5 obtained in this example is used, the growth rate of main roots is about doubled as compared with the conventional general fertilizer.

In addition, in this embodiment, as the organic material, oil meal, soybean meal, rice bran, animal residue and wood bamboo, etc. or rice husks are used, but the invention is not limited to this and any organic material may be used. It can be anything.

(Effect of the invention) In the present invention, the fermented fertilizer and the method for producing the fermented fertilizer are configured as described above, so that the fertilizer is cheaper than the conventional fermented fertilizer using chlorella itself, and the three elements of fertilizer and others It has an excellent effect that a fermented fertilizer having a high content of the trace elements of, that is, a fertilizer having a high fertilizing effect can be obtained. Further, when using wood bamboo or the like or rice husks as the organic material, it is possible to significantly shorten the fermentation period as compared with the conventional one, since it is preliminarily subjected to humidification heat treatment and lime nitrogen is added. As a result, it has an excellent effect that it can be easily placed on an industrial production line. Incidentally, although the chlorella extract extraction residue and the chlorella culture waste liquid have been conventionally discarded in the sea,
Since the fertilizer is used in the production process as described above, it also has the effect of suppressing the progress of marine pollution.

[Brief description of drawings]

 FIG. 1 is a manufacturing process diagram of a fermentation fertilizer according to the present invention. 1 …… Chlorella extract extraction residue 2 …… Chlorella culture waste liquid 3 …… Organic material 4 …… Nitrogen-containing substances (lime nitrogen, ammonium sulfate or excrement) 5 …… Fermentation fertilizer

Claims (2)

[Claims] 1. A fermentation fertilizer mainly composed of an organic material containing wood bamboo and / or rice husk, and a chlorella extract extraction residue and / or chlorella culture waste liquid. 2. When producing a fermenting fertilizer using an organic material, a chlorella extract extraction residue and / or a chlorella culture waste liquid is added to an organic material containing a wood bamboo material and / or rice husk that has been previously subjected to a humidification heat treatment to obtain a water content. A method for producing a fermenting fertilizer, which comprises adjusting and fermenting.