JP3573827B2 - Soil softening promoter and soil improvement method using the same - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a soil softening-promoting material and a soil improvement method using the same, and more particularly, to a soil cultivation method which is useful as a measure for reducing continuous cropping failure of crops and which causes continuous cropping failure before planting of crops. Soil swelling-promoting material for correcting the uniformity of soil and microorganisms in soil, improving the physical, chemical and microbiological properties of soil, laying the foundation for sound soil, and stably producing agricultural crops. And a soil improvement method using the same.
[0002]
[Prior art and problems]
In recent years, facilities and mechanization have progressed, and continuous cropping of specific crops on the same soil has increased, the soil depth has become shallower, and continuous cropping failure due to imbalance of residual fertilizer, plant residues, and soil microorganisms has occurred frequently. As a countermeasure, soil microorganisms are usually sterilized by disinfecting the soil with a drug to enable continuous cropping. However, the soil is exhausted, and the yield and quality of crops are reduced.
Under these circumstances, it is very important to grow crops healthy and maintain and improve yield and quality in any soil environment and in any crop cultivation. For this purpose, it is necessary to agglomerate the soil, to stiffen the hard, shallow soil and to improve the soil microbial balance, but no effective measures have been found.
[0003]
[Means for Solving the Problems]
The inventors of the present invention have repeatedly studied on measures for swelling the soil and improving the balance of soil microorganisms, in particular, in order to reduce continuous cropping failure of crops. As a result, by using a mixture of rice bran, zeolite and brown algae powder, which have been used individually by contributing to the activity of soil microorganisms in the past, the microbial activity was synergistically improved compared to the case of individual use Was promoted, the soil was softened, the balance of soil microorganisms was improved, and the ground strength was improved. Thus, the present invention was completed.
[0004]
That is, the present invention is to provide a rice bran, soil壌膨soft reduction promoting material to the zeolite and brown algae powder of the active ingredient.
Also, the present invention provides a method of mixing the soil softening agent of the present invention with soil at a ratio of 400 to 600 kg / 10a before planting a crop, and watering the soil until the soil moisture becomes about 40 to 60%. There is also provided a soil improvement method characterized in that the surface is left closed for 20 to 30 days.
[0005]
The rice bran used in the present invention is not particularly limited, and may be any of rice bran usually used as a compound fertilizer raw material.
The zeolite is not particularly limited, and any zeolite that is usually used as a soil conditioner may be used. However, from the viewpoint of handling, powder having a particle size of about 15 to 60 mesh is preferable.
[0006]
As the brown alga powder, any brown algae may be used, but from the viewpoint of availability and the like, brown alga of the order Himbata from Norway is preferred. Generally, this brown algae is preferably washed well with water, dried and pulverized into a powder, and similarly, from the viewpoint of handling, it is preferable to have a particle size of about 15 to 60 mesh.
[0007]
The soil softening promoting material of the present invention is produced by mixing these rice bran, zeolite and brown algae powder by a conventional method. The mixing ratio of rice bran, zeolite and brown algae powder can be changed depending on the type of soil to be applied, crops and the like, but usually, the weight ratio of rice bran: zeolite: brown algae powder is 1: 0.5 to 1.5: 0.05 to 0.5, preferably 1: 1: 0.1 to 0.5.
[0008]
If desired, other components such as surfactants, excipients, other fertilizer components (eg, nitrogen fertilizer, fermented fertilizer) and the like may be added.
In the present invention, the obtained powder mixture may be used directly as a soil softening accelerator, or may be in the form of pellets, granules, flakes or the like by a conventional method.
[0009]
The soil softening promoting material of the present invention is mainly used as a measure for reducing continuous cropping failure of horticultural crops such as strawberries, cucumbers, tomatoes and chrysanthemums. Apply to soil during strong periods of time.
In particular, the soil softening promoting material of the present invention is mixed by plowing into the soil at a rate of about 400 to 600 kg / 10a, preferably about 600 kg / 10a, and the soil moisture is about 40 to 60%, preferably about It is preferable that water is sprinkled until the water content becomes about 60%, the soil surface is sealed by covering the entire soil surface with a vinyl sheet or the like, and then left for 20 to 30 days. If desired, a small amount, for example, about 700 ppm of nitrogen or a small amount of fermented fertilizer may be mixed with the promoter.
Thus, the use of the soil softening promoting material of the present invention has once caused problems such as hard soil, shallow cultivated soil, poor rooting, poor drainage and poor ventilation, and poor soil microbial balance due to continuous cropping. Can increase crop yield and quality by reducing the occurrence of pests and diseases.
[0010]
【Example】
Next, the present invention will be described in more detail with reference to examples, but the present invention is not limited thereto.
Example 1
600 kg of rice bran, 600 kg of zeolite (15-60 mesh powder of zeolite from Shimane Prefecture: trade name "Shinkyolite" sold by Jinkyo Sangyo Co., Ltd.) and 15-60 mesh powder of brown algae powder (dry product of brown alga from Norway) : 300 kg of a product name “Algit” sold by Shinkyo Sangyo Co., Ltd.) to obtain a soil softening promoting material.
[0011]
The obtained soil softening promoting material is plowed at a rate of 600 kg per 10a into a 20-year field of continuous tomato cultivation at a cultivation depth of 34 cm, sprinkled with water until the soil moisture becomes about 60%, and covered with a vinyl sheet. , And allowed to stand for 27 days. After the standing, the cultivation depth was measured (processed on June 2, 1993, surveyed on June 28, 1993), and the cultivation depth was 65 cm.
On the other hand, when the same field was similarly treated only with rice bran, the cultivation depth after standing was 42 cm, when treated only with zeolite, the cultivation depth after standing was 44 cm, and only the brown algae powder was treated. In this case, the cultivation depth after standing was 48 cm.
[0012]
Example 2
460 kg of rice bran, 460 kg of zeolite and 80 kg of brown alga powder were mixed as in Example 1 to obtain a desired soil softening accelerator.
Before planting crops, in the same manner as in Example 1, the promoting material, was tested use in Strawberry Cultivation in壤土in strawberry growers Rise soft of soil, decreased occurrence of anthrax, fruit Promotion of hypertrophy was reported. In addition, tomato growers Rise soft of the soil was tested for use in tomato cultivation in clay, improvement of drainage, sales have been reported. Furthermore, when the use for chrysanthemum cultivation in sandy land was tested, it was reported that the occurrence of damping-off was reduced and the growth was stabilized.
[0013]
【The invention's effect】
As described above, by using the soil softening promoting material of the present invention, the soil is agglomerated, swells to a deep part of the soil, drainage and air permeability are improved, and roots are well-tended. As a result, organic matter and base components remaining in the soil are decomposed, and the soil microbial balance is improved. Thus, soil microbes are activated, soil microbial antagonism and soil agglomeration are promoted, the occurrence of pests is reduced, and the growth of the crops is promoted and healthy cultivation can be carried out even in continuous cropping of agricultural crops.

Claims (2)

Strawberries, cucumbers, tomatoes containing rice bran, zeolite and brown alga powder as active ingredients in a weight ratio of rice bran: zeolite: brown algae powder of 1: 0.5-1.5: 0.05-0.5 Or a soil softening promoting material to reduce continuous cropping failure of chrysanthemum. Before planting the agricultural crop, the soil softening promoting material according to claim 1 is mixed with the soil at a rate of 500 to 600 kg / 10a, sprinkled with water until the soil moisture becomes about 40 to 60%, and the soil surface is sealed. Soil improving method as a measure for reducing continuous cropping failure of strawberry, cucumber, tomato or chrysanthemum, wherein the method is left for 20 to 30 days.