JPH08245959A - Soil conditioner - Google Patents

Abstract

PURPOSE: To obtain a soil conditioner, excellent in effects on raising of good seedlings, shortening of the growing period, improvement in yield, etc., and having persistence thereof and excellent soil improving effects by blending a herb medicine component with a porous adsorbent. CONSTITUTION: This soil conditioner comprises (A) an extract solution of Glycyrrhizae Radix (e.g. an alcohol extract solution of the Glycyrrhizae Radix) and (B) woody pulverized charcoal preferably at (2:1)-(1:20) weight ratio of the components (A):(B). One or more of components, such as an oil meal, a fish meal and activated sludge microbial cells are preferably blended as an extender for the soil conditioner. The weight ratio of the soil conditioner to the extender is preferably (2:1)-(1:10). The soil conditioner has preferably a granular dosage form having preferably 0.01mm-50mm grain diameter. The soil conditioner is preferably applied in an amount of 50-2,000kg/10a as a basal fertilizer for crop cultivation and preferably dusted in the above application amount on the surface of soil in the course of cultivation for horticultural cultivation, a golf course, etc.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a soil conditioner.

[0002]

2. Description of the Related Art In recent years, there have been problems such as reduction of soil productivity due to chemically synthesized pesticides and chemical fertilizers used in agricultural production sites, and influence of pesticides used at golf courses on the human body. On the other hand, natural pesticides, microbial materials, organic fertilizers, etc. that make use of natural materials are drawing attention. As one example, attempts have been made to use crude drugs for fertilizers, agricultural chemicals, and the like. For example, there is a medicine for Kampo medicine of Japanese Examined Patent Publication No. 5-29201. However, not only the effect of crude drug is not sufficient with the current technology, but the fertilizing effect is not continued, and for example, in crop cultivation, application is required several times or more during the cultivation period. Moreover, it cannot be said that the soil improvement effect is sufficient.

[0003]

DISCLOSURE OF THE INVENTION The present invention further enhances the effect of enhancing the vitality of crude drugs on plants, that is, the effects of raising healthy seedlings, shortening the period required for growth, improving yield, etc. The present invention provides a soil improving agent which exhibits an excellent soil improving effect at the same time and is easy to prepare.

[0004]

Means for Solving the Problems As a result of intensive studies to solve the above problems, the present inventors have surprisingly solved the above problems by combining a crude drug component and a porous adsorbent. The present invention has been completed and the present invention has been completed.

That is, the present invention is: (1) A soil improver characterized by containing a licorice extract and woody coal. (2) Weight ratio of licorice extract and wood dust coal 2: 1 to 1: 2
The soil conditioner according to (1), which is blended with 0. (3) Oil cake as a filler for the soil conditioner described in (1),
A soil conditioner comprising one or more organic components of fish meal and activated sludge cells. (4) The weight ratio of the soil conditioner described in (1) to one or more of the oil cake, fish meal, and organic components of activated sludge cells is 2: 1 to 1: 1.
The soil improver according to (3), which is blended with 0. (5) The soil improver according to (1) or (4), which is a granular dosage form. (6) The soil conditioner according to (5), wherein the particle size of the granular agent is 0.01 mm to 50 mm. Is provided.

The present invention will be described in more detail below.
The licorice extract used in the soil conditioner of the present invention is water extracted,
The extraction method such as acid or alkali extraction or organic solvent extraction is not limited. For example, when hot water is used for extraction, glycyrrhizin, glabric acid, liquiritin, isoliquiritin, etc. are extracted. Furthermore, it contains polysaccharides and minerals, and each of these components contributes to the promotion of plant growth.

[0007] On the other hand, wood dust coal greatly improves the water retention, water permeability, and air permeability of soil as conventionally known, and further contributes to the formation of an aggregated structure of soil. Further, since wood pulverized coal has a large adsorption area, it has a high deodorizing effect and reduces fermentation odor. Furthermore, wood pulverized coal is a good breeding ground for various microorganisms including nitrogen-fixing bacteria such as Azotobacter, and plants receive minerals, vitamins, etc. from these microorganisms, and against the development of fine roots and root hairs. Is also effective and increases resistance to diseases and the like, which is preferable for plant growth.

By combining the licorice extract and the wood dust coal, a synergistic effect that cannot be obtained by each alone is obtained. It is considered that this is because the pulverulent charcoal adsorbs and retains the licorice component to prevent the licorice component from escaping from the plant rhizosphere and to promote the growth of the microbial group in the activated carbon.

In order to prepare the soil conditioner of the present invention using these components, the licorice extract and wood dust coal are mixed and stirred at a weight ratio of 2: 1 to 1:20, and the licorice component is added. Adsorb on wood dust coal. Further, if necessary, it is possible to increase the amount by using one or more kinds of organic components such as oil cake, fish meal, and activated sludge cells as an extender. The mixing ratio of these and the soil improver is 2: 1 to 1:10 by weight.
So that At this time, the effect of soil diseases and the like can be expected by using a microbial material together.

The soil improver of the present invention can be made into various dosage forms, for example, powders, granules and wettable powders, according to a conventional method, and particularly, the granule dosage form, preferably the particle diameter is 0.01 mm to.
It is preferable to set it to 50 mm for convenience in use.

When using the soil conditioner of the present invention, it is effective to apply the basic fertilizer at a rate of 50 to 2000 kg / 10a in crop cultivation. Further, in horticultural cultivation, golf courses, etc., it is possible to apply soil in the middle of cultivation at the same application rate as crop cultivation.

[0012] Applicable crops of the present invention include crops such as rice and wheat, leaf vegetables such as komatsuna and spinach, fruit vegetables such as tomato and cucumber, root vegetables such as radish and turnip, legumes, fruit trees, flowers and forest trees. , Mushrooms, turf, etc.

[0013]

The present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples.

Example 1 200 L of a licorice alcohol extract (solid content: 37.5%) was added to 100 kg of wood powder coal and mixed. When the alcohol content was removed by drying and the weight was measured, 175 kg of the soil improver of the present invention was obtained.

Example 2 Activated sludge cells were mixed with the soil conditioner prepared in Example 1 at a ratio of 1: 1, and the mixture was mixed with a microbial material (EM-
A 1: 1000 dilution of No. 1: manufactured by Nippon Food Industry Co., Ltd.) was added in a fixed amount, and sterilized water was further prepared so that the water content was 45%, followed by culturing at 25 ° C. for 10 days. A mixture of wood pulverized coal and a dried product of activated sludge cells was used as a control. Table 1 shows the numbers of viable bacteria, molds and yeasts before and after the culture. As a result, the soil improving agent of the present invention showed a microbial growth effect more than that of the case where only wood dust coal was used.

[0016]

[Table 1]

Example 3 Using the licorice extract (solid content: 37.5%), wood pulverized coal, and the soil improver prepared in Example 1, the effects on the growth of komatsuna were comparatively examined. That is, as shown in Table 2, 10 ml of each was placed on the filter paper in the petri dish.
Was added. 20 seeds of Komatsuna were sown on this filter paper, and after culturing at 25 ° C. in the dark for 5 days, stem length and root length were measured. Table 2 shows the results based on the stem length and root length without addition (100%). As is clear from Table 2, the soil improving agent of the present invention promoted the growth as compared with the licorice extract alone and the woody coal alone. Especially in roots, the effect is remarkable.

[0018]

[Table 2]

Example 4 Leaf radish was cultivated in an a / 2000 Wagner pot. The test soil was a mixture of Masago soil and sand at a ratio of 1: 1. For each test group, the soil improver prepared in Example 1 and the oil cake were mixed in a weight ratio of 1: 1 and 2: 1, and 100 g of the oil cake was added. As a control, a test section was used in which only the oil cake was used, and a mixture of the oil cake and wood powder coal was added at a ratio of 1: 1. Leaf radishes were sown in each test section, and after germination, 3 strains were thinned out. The longest leaf length (average of 3 strains) after 25 days is shown in Table 2. As a result, the soil improving agent of the present invention showed a remarkable growth promoting effect as compared with the control. In addition, the leaf color was darker green than the control.

[0020]

[Table 3]

Example 5 Tomato seedlings were transplanted to a / 5000 Wagner pot. The test soil was a mixture of vermiculite: sand in a ratio of 1: 1.
The test plots are as follows, as a licorice extract (solid content 37.5%) addition plot, a wood pulverized coal blending plot, a soil improver plot prepared in Example 1 and a commercial crude drug fertilizer plot (Belking 500: manufactured by Arum Co., Ltd.). The addition amount is shown in the table. Liquid fertilizer (hyponics liquid fertilizer) was diluted to a predetermined concentration and sprayed once per week to all the test plots. At that time, the licorice extract-added group and the commercial crude drug solution-fertilized group were sprayed simultaneously with the liquid fertilizer. Table 3 shows the growth state (average of 2 strains) after 40 days. As a result, the soil improver of the present invention showed excellent growth in plant height and stem thickness as compared with the other plots. The leaf color was also dark green.

[0022]

[Table 4]

[0023]

EFFECT OF THE INVENTION The soil improving agent of the present invention exhibits a soil improving effect through woody pulverized coal and the licorice component adsorbed in the woody pulverized coal, either directly or through the action of microorganisms. It is an effective vitality enhancer for plants, such as promotion of growth of the body and promotion of growth. Moreover, those effects last for a long time.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication C05G 3/04 9356-4H C05G 3/04 // C09K 101: 00

Claims (6)

[Claims] 1. A soil conditioner comprising a licorice extract and woody coal. 2. The weight ratio of licorice extract and woody coal is 2: 1.
The soil conditioner according to claim 1, which is compounded at a ratio of from 1:20. 3. A soil conditioner, comprising one or more of an organic component of oil dregs, fish meal, and activated sludge cells as an extender for the soil conditioner according to claim 1. 4. The soil amendment according to claim 3, wherein the soil amendment according to claim 1 and at least one of the organic components of oil meal, fish meal, and activated sludge cells are blended in a weight ratio of 2: 1 to 1:10. Agent. 5. The soil conditioner according to claim 1 or 4, which is in a granular dosage form. 6. The soil conditioner according to claim 5, wherein the particle size of the granular agent is 0.01 mm to 50 mm.