JPH03187316A - Granular rock wool peat-moss mixture - Google Patents

Abstract

PURPOSE:To obtain the title mixture suitable as horticultural soil, having low temporary specific gravity and high uniformity by blending specific granular rock wool with peat-moss so as to show fixed pH and temporary specific gravity. CONSTITUTION:(A) 100 pts.wt. granular rock wool having 1-20mm average particle diameter and 0.05-0.35g/ml temporary specific gravity is blended with (B) >=10 pts.wt. peat-moss having <=10mm average length, <=1mm thickness and <=0.3g/ml temporary specific gravity to give a granular granular rock wool and peat-moss mixture having pH (H2O) 5.5-7. 5 and <=0.25g/ml temporary specific gravity.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a granular rock wool/beet moss mixture with a small temporary specific gravity and high uniformity, a granular rock wool/beet moss mixed horticultural soil, and a granular rock wool/beet moss mixed horticultural soil. The present invention relates to an additive and a method for producing a granular rock wool/beet moss mixture.

[Prior Art] The present inventor previously invented an excellent mixed horticultural soil using granular natural zeolite and filed a patent application (Japanese Patent Application No. 63-232589). It has been desired to further reduce the tentative specific gravity (referred to as "volume weight", "bulk specific gravity", etc.) of the soil.

In addition, as a material having a small tentative specific gravity and containing components preferable as an agricultural material, for example, JP-A-63-1mm
Granular rock wool was considered as described in No. 2934.

Granular rock wool is made of ultrafine fibers obtained by melt-spinning mineral slag, etc., and is a flocculent, light granular material, and it is thought that if it is mixed with the above-mentioned mixed horticultural soil, the tentative specific gravity can be reduced. Ta.

However, an attempt was made to mix this granular rock wool with conventional horticultural soil, but even when the granular rock wool was lightly compressed or compressed, it easily solidified partially, resulting in uneven blocks. This produces uneven pH (U*O), nutrient distribution, etc., and as a result, the growth of plant seedlings becomes uneven. Therefore, this is mixed and used for the purpose of lowering the temporary specific gravity of conventional gardening soil. However, it was not possible to obtain a mixed horticultural soil with a low tentative specific gravity and high uniformity as desired.

Further, granular rock wool contains inorganic components suitable for use as a calcific fertilizer from its raw materials, and its use for horticulture has been considered, but it has the disadvantage of being highly alkaline.

[Problems to be Solved by the Invention] The present invention uses the above-mentioned granular rock wool, and by mixing an appropriate amount of a specific beet moss into it, the disadvantages of the granular rock wool are eliminated, and the tentative specific gravity is small and almost medium. The present invention aims to provide a novel mixture that is highly uniform and stable, a mixed horticultural soil using the same, an additive for the mixed horticultural soil, and a method for producing the mixture.

[Means for Solving the Problems] The present inventor combined the above-mentioned granular rock wool with a specific beet moss, preferably short fibrous beet moss, and these granular rock wool/beet moss mixtures have the following properties:
Surprisingly, even when compressed, they maintain their independent state without caking and maintain a small temporary specific gravity. Moreover, the alkalinity of the granular rock wool and the acidity of the beet moss are skillfully matched to create a unique structure. The most favorable pH (
It has been found that the granular rock wool/beet moss mixture of the present invention is found to be within the range of HiO) and has a high degree of uniformity.

The present invention has 1, average particle size of 1 to 20IIIffi, tentative specific gravity of 0.05
0.35g/cc, preferably 0.07 to (J-
For 100 parts by weight of 3g/cc granular rock wool, average length 10mm or less, thickness (diameter) 1ma+ or less, temporary specific gravity 0.3g/cc or less, preferably 0.05 to 0.2
10 parts by weight or more of 5 g/cc beet moss, preferably 1
By mixing 0 to 200 parts by weight, pH (Heal
s, s to 7.5, highly uniform granular rock wool/beet moss mixture with tentative specific gravity of 0.25 g/cc or less, 2. Average particle size 1 to 201II 1 mm, tentative specific gravity 0.05
0.35g/CC1 preferably 0.07 to 0.3
g/cc of granular rock wool, average length 10s+m or less, size 1III1mm or less, tentative specific gravity 0
．． 3g/cc or less, preferably 0.05 to 0.25g
/cc of beet moss at least 10 parts by weight, preferably 10 parts by weight
By mixing 200 parts by weight, the pH (H2O15
, 5 to 7.5, highly uniform granular rock wool/beet moss mixed horticultural soil with a tentative specific gravity of 0.25 g/cc or less, 3. Average particle size of 1 to 20 mm, tentative specific gravity of 0.05 to 0.
．． 35g/cc, preferably 0.07 to 0.3g/c
Average length l for 100 parts by weight of granular rock wool c
By mixing 10 parts by weight or more, preferably 10 to 200 parts by weight of beet moss with a thickness of hm or less and a thickness of 1 nu++ or less and a tentative specific gravity of 0.3 g/cc or less, preferably 0.05 to 0.25 g/cc, the pH (H2O) 5.5 to 7.5
, A highly uniform granular rock wool/beet moss mixed horticultural soil additive with a temporary specific gravity of 0.25 g/cc or less, 4. Average particle size 1 to 20 mm, temporary specific gravity 0.05 to 0.
35g/cc, preferably 0.07 to 0.3g/cc
Average length lo for 100 parts by weight of granular rock wool
n+n or less, size 1fl1mm1 or less, tentative specific gravity 0.3g/
cc or less, preferably 0.05 to 0.25 g/cc of beet moss to 10 parts by weight or more, preferably lO to 20
By mixing 0 parts by weight, ptt+tr*o)5.
5 to 7.5. A highly uniform granular rock wool/beet moss mixed horticultural soil additive with a tentative specific gravity of 0.25 g/cc or less, mainly granular natural zeolite, nitrifying bacteria, nitrogen fertilizer,
A phosphorus component is added and mixed as necessary, and the ammonia nitrogen component is 0.02 to 0.2 g/long as N.
, 0.005 to 0.05g of nitrate nitrogen component as N
/100g, pH (H*016.0 to 7.5,
A granular rock wool/beet moss mixed horticultural soil containing highly uniform granular natural zeolite made by mixing a mixed soil with an electric conductivity of 2-On+S/cm or less and a cation exchange capacity of 5 notes as a main component, 5 By passing the granular rock wool through a sieve, the average particle size is 1 to 20 mm, and the temporary specific gravity is 0.05 to 0.35.
Granular rock wool of g/cc, preferably 0.07 to 0.3 g/cc is obtained, and to 100 parts by weight of this, crushed in advance and passed through a sieve, with an average length of 10 mm or less and a size of 1!01 mm1. Temporary specific gravity below 0.3g/cc, preferably 0.05 to 0. PTT[H. O) 5. 5 to 7.
5. A method for producing a highly uniform granular rock wool/beet moss mixture with a tentative specific gravity of 0.25 g/cc or less.

Here, the granular rock wool that can be used in the present invention is obtained by spinning and granulating a molten material such as slag slag or diabase produced during steel manufacturing, and the main The chemical components are shown in Table 1 below, for example.

Table 1 (% by weight) The granular rock wool obtained from these usually consists of flocculent light granular aggregates of filaments with a diameter of about 1 to 20 μm, and has a tentative specific gravity of 0.05 to 0.35 g/
cc, preferably 0.07 to 0. It has a value of about 3 g/cc and is obtained as soft granules with a diameter of about 1 to 20 m+m, and some are commercially available as building materials.

These granular rock wools are usually commercially available as compressed packaging, bagging, etc. with a tentative specific gravity of about 0.2 to 0.5 g/cc.

The vine granular rock wool used in the present invention is obtained by passing the granular rock wool, which has been compressed and packaged as described above and whose temporary specific gravity has increased and is partially agglomerated, through a sieve (sieve) to partially agglomerate and increase the density. The densified granular rock wool is unraveled to form the original granular rock wool, with a temporary specific gravity of 0.05 to 0.
35g/cc, preferably 0.07 to 0.3 g/cc
Granular rock wool having a temporary specific gravity suitable for use in the present invention of about cc can be obtained.

Here, any sieve that can be used may be, for example, a standard sieve according to JIS Z B2O2, an ASTM standard sieve, or a filler standard sieve. exceeds 1 mm and can pass through a sieve of about 20 mm, but a sieve with an appropriate mesh size may be used depending on the particle size of the granular rock wool desired to be used.

In the present invention, the temporary specific gravity was measured in accordance with the "air-dried fine soil volumetric weight measurement method" described in "Soil Physical Properties Measurement Method" published by Yokendosha.

If the particle size of the granular rock wool is less than 1III1 mm, a sufficient temporary specific gravity value cannot be obtained, and if it exceeds 20 aus, the mixture lacks uniformity and is difficult to use as a mixed horticultural soil. Temporary specific gravity is 0.05g/c
If the value is less than c, the granular rock wool is fragile and the shape
It is difficult to maintain the temporary specific gravity. Also, the tentative specific gravity is 0
．． If it exceeds 35 g/cc, the apparent weight of the target product increases, which is not preferable for achieving the purpose of the present invention.

pH of granular rock wool that can be used in the present invention (H2Ol
is usually around 9. Therefore, it is highly alkaline and difficult to use directly as horticultural soil.

Next, the beet moss that can be used in the present invention is made by depositing and altering the quality of sphagnum moss.

In general, beet moss usually retains a large amount of water, about 10 to 100%, has rich water retention and breathability, has a high base substitution capacity, and has a large fertilizer retention capacity.Furthermore, the tentative specific gravity of air-dried beet moss is 0.05 to 0.05. Although it is light at about 0.3 g/cc and has favorable conditions as a soil improvement material, it has a drawback in that it has a low pH (u, ol) of about 2.5 to 3.7 and is strongly acidic.

Here, the beet moss that can be used in the present invention is obtained by crushing dried beet moss by air-drying, etc., and passing it through an appropriate sieve, with an average length of 10 mm or less and a thickness (as a diameter) of 1 mm or less. It can be obtained in fibrous form.

In addition, even short fibrous beet moss produced by first crushing and drying tends to clump and increase the tentative specific gravity when compressed, packed, etc. and stored, so it should be sieved before use. The fibers are passed through the fibers to ensure that they are separated into individual short fibers with an average length of 10 mm or less, a thickness of 1 mm or less, and a tentative specific gravity of 0.3 g/cc or less, preferably 0.05 to 0.
It is desirable to use the range of 25 g/cc.

In the present invention, 1 part by weight of the above-mentioned beet moss, preferably short fibrous beet moss, is added to 100 parts by weight of the above-mentioned granular rock wool.
It is obtained by mixing 0 parts by weight or more, preferably about 10 to 200 parts by weight, and p former HJ) 5.5 to '? ,
5. Temporary specific gravity 0.25g/cc or less, preferably 0.07
Granular rock wool/beet moss mixture of about 0.22 g/cc, granular rock wool/beet moss mixed horticultural soil1 Additive for granular rock wool/beet moss mixed horticultural soil, granular rock wool/beet moss containing granular natural zeolite
This is a method for producing a beet moss mixed horticultural soil and a granular rock wool/beet moss mixture.

Here, if the average length and thickness of the beet moss exceeds 1 mm, the caking prevention effect of the granular rock wool will be insufficient, which is undesirable, and the tentative specific gravity of the beet moss will be 0.3 g/
If it exceeds cc, it is not preferable for weight reduction, which is the object of the present invention.

Furthermore, if less than 10 parts by weight of the beet moss is used with respect to 100 parts by weight of the granular rock wool used in the present invention, the granular rock wool will cause caking, which is not preferable.

In addition, p of the granular rock wool/beet moss mixture of the present invention
The measurement of H (H*0) was carried out in accordance with the method described in "Soil Standard Analysis and Measurement Method" published by Hakuyusha.

In addition, as another aspect of the present invention, after mixing the required amount of beet moss with the granular rock wool containing some lumps used in the present invention, the entire mixture is passed through an appropriate sieve to break it up, It can also be used as a mixture according to the invention.

Next, the present invention is a mixed horticultural soil additive which is a mixture of granular rock wool and beet moss, which is mainly composed of granular natural zeolite, nitrifying bacteria, nitrogen fertilizer, and if necessary, phosphorus component is added and mixed, and ammonia Contains 0.02 to 0.2e7100g of nitrate nitrogen component as N, o, oos to 0.05g7100g of nitrate nitrogen component,
pH (Htol 6.0 to 7.5, electrical conductivity 2.
OmS/cm or less, and a mixed soil containing granular natural zeolite as a main component and having a cation exchange capacity of 5, and a granular rock wool/beet moss mixed horticultural soil containing natural zeolite.

Here, the mixed soil containing granular natural zeolite as a main component is described in detail in Japanese Patent Application No. 63-232589, but for example, for 100 parts of natural zeolite,
10 to 60 parts of a nitrifying bacteria source, 0.2 to 20 parts of a pH adjuster, 0.05 to 0.2 parts of nitrogen fertilizer as N, and 220 parts of phosphorus as necessary. By adding in the range of 0.01 to 0.1 part and mixing using an appropriate mixing device, the amount of N, which is an ammonia nitrogen component, is 0.02 to 0.2 g/100 g, preferably 0.05 to 0.2 g/100 g. 0.2
g7 100g. The nitrate nitrogen component is 0. 00
5 to 0,05g/100g, pH old H. 01 6
．． 0 to 7.5, electrical conductivity 2. This is a mixed horticultural soil containing granular natural zeolite as a main component, which has a cation exchange capacity of 0 mS/cm or less and a cation exchange capacity of 5 marks.

Note that granular natural zeolite is a crystalline aluminosilicate mineral with a three-dimensional network structure formed by diagenesis of volcanic glass in the green tuff zone.For example, natural zeolite whose main components are clinoptilolite and mordenite. is preferable. Moreover, the granular form is preferably one obtained by crushing and sizing zeolite raw stone, or granulating zeolite powder, and having a particle size of approximately 0.5 mm to 2 ma+.

Here, the granular natural zeolite is microporous and preferably has a cation exchange capacity (CECI is usually 5
It has a value of 0 to 200 meq/10 Dg.

In addition, nitrifying bacteria is a type of aerobic bacteria, including nitrite bacteria,
It refers to nitrate bacteria, etc., and sources of nitrifying bacteria include compost, water treatment plant soil, and field soil.

In addition, nitrogen fertilizer preferably means chemical fertilizer,
It means substances containing or producing ammonia nitrogen, such as ammonium sulfate, ammonium phosphorus, urea-lime nitrogen, etc.

Further, as the pH adjusting agent, converter slag, blast furnace slag, silica, charcoal, magnesia, fossilized shells, oyster shell lime materials, etc. are used.

Examples of the phosphorus component include lime superphosphate and heavy sintered phosphorus.

In addition, this mixed horticultural soil containing granular natural zeolite as a main component preferably has a tentative specific gravity of 0.7 to 0.9 g/c.
c, active phosphoric acid is p2o. 50 to 300mg as
/100g.

The above-mentioned average particle size l to 201, tentative specific gravity 0.05 to 0,
For 100 parts by weight of granular rock wool of 35 g/cc, the average length is lonm or less, the thickness is 1ff, 1 mm or less, and the tentative specific gravity is 0. By mixing 10 parts by weight or more of beet moss of 3 g/cc or less, pH [H*0) 5. 5 to 7
．． 5. A highly uniform granular rock wool mixed horticultural soil with a tentative specific gravity of 0.25 g/cc or less, and the above granular natural zeolite as the main ingredient, nitrifying bacteria, nitrogen fertilizer, and phosphorus component added as needed. , ammonia nitrogen component as N 0.02 to 0.2 g/100
g, 0.0% with the nitrate nitrogen component being N. 005 to 0.
Contains 05g7100g, pH (Hid) 6.0 to 7.5, electrical conductivity 2. OmS/cm or less and a mixed soil whose main component is cation exchange capacity of 5. You can choose freely.

That is, the vine used in the present invention is the above-mentioned mixed soil containing granular natural zeolite as a main component (hereinafter referred to as rAJ), and the above-mentioned granular rock wool/beet moss mixed horticultural soil additive C, hereinafter referred to as "B".

) is preferably used in the ratio of A:B = 1:1 for Kirari, melons, etc., and A:B = 1:1 for eggplants, tomatoes, etc.
:B=2:l is preferable, and in the case of Western vegetables, lettuce, Chinese cabbage, etc., the ratio of A:B=1:1 to 1:0.5 is preferable.

[Function] The granular rock wool mixed horticultural soil of the present invention contains 10 parts by weight of the above-mentioned beet moss, preferably 10 weight parts of loose beet moss with an average length of 101 mm or less and a thickness of 1 mm or less, per 100 parts by weight of the above-mentioned loose granular rock wool. When mixing more than 1 part, preferably 20 to 200 parts by weight, beet moss and granular rock wool are both solids, so a part of the beet moss will undergo an ion neutralization reaction, while the other part will have electrical attraction. It is thought that the fine beet moss adheres almost evenly around the granular rock wool composed of fibers due to ionic attraction, and the whole is stabilized in a bulky and uniform state.

Therefore, even if a relatively small amount of beet moss is used, the granular rock wool will not solidify under pressure and will remain in an independent state, and the mixture of granular rock wool and beet moss will have a sufficiently small temporary specific gravity. The purpose of keeping it uniform and stable can be achieved.

As a result, the granular rock wool becomes surprisingly strong, and as a result, it is thought that it no longer exhibits the caking phenomenon.

Furthermore, as a result of the reaction between granular rock wool and beet moss,
The granular rock wool/beet moss mixture of the present invention and its mixed horticultural culture medium have a pH (H2O) value of 5.5 to 7.5.
This is a desirable value near neutrality.

In addition, even when the granular rock wool/beet moss mixed horticultural soil additive of the present invention is mixed with the above-mentioned mixed soil containing granular natural zeolite as a main component, the caking phenomenon of the existing granular rock wool does not appear, and it is stable. It was found that the tentative specific gravity was approximately determined from the mixing ratio.

The effect of mixed soil containing granular natural zeolite as a main component is detailed in the specification of Japanese Patent Application No. 63-232589, but the point is that the ammonia nitrogen component contained in granular natural zeolite is Since it is gradually converted into nitrate nitrogen components and immediately absorbed into the plant body, it can exhibit extremely excellent effects as a horticultural soil, and in the present invention, the same effect can be achieved. Furthermore, the granular rock wool/beet moss mixed horticultural soil of the present invention further mixed can preferably receive both the action as a calcic fertilizer and the action of sufficient air contained in the culture medium.

[Example 1] Granular rock wool (fine cotton No. 5 manufactured by Nippon Cement Co., Ltd.) manufactured using mine slag as a raw material and partially consolidated by compression packaging and having a high temporary specific gravity was passed through a sieve with an opening of 41all+. The average particle size is 2.5 to 5.0 JllII.
, pJ(lH2O) 9.1, provisional specific gravity 0.15g
/cc of loose granular rock wool was obtained.

Next, commercially available beet moss containing some lumps was air-dried and crushed and passed through a 2n++n sieve with an average length of 10m.
Separate, independent beet moss in the form of short fibers with a diameter of 1 mm or less and a thickness of 1 mm or less was prepared. This beet moss is pHIHx
O) 4.5, tentative specific gravity 0.10 g/cc.

Add 10g to 200g of the above beet moss to 200g of the above granular rock wool in the proportions listed in Table 2, mix well and evenly, then squeeze a portion of it tightly in your palm, and when you open your hand, the mixture will harden. The state of confinement was determined.

As shown in Table 2, the beet moss Log (comparative example) solidified, but the beet moss of 20 g or more (inventive example) did not solidify and existed in a uniform, scattered state.

Further, the pH (H*O1) of the present invention is within the range of 5.5 to 7.5, which is suitable for plant growth.

Table 2 [Example 2] Instead of the granular rock wool used in Example 1, the average particle size was 2.5 to 5 mm, pH (H2O) 9.9,
Loose granular rock wool with a tentative specific gravity of 0.30 g/cc (made using fine cotton NO63000 manufactured by Nippon Cement Co., Ltd.)
A granular rock wool/beet moss mixture was prepared in the same manner as in Example 1, except that a mixture of rock wool and beet moss was used, and the same tests as in Example 1 were conducted, and the results shown in Table 3 were obtained.

Table 3 From the above, 1 l of beet moss per 200 g of granular rock wool
Granular rock wool/beet moss mixture using og (
The granular rock wool/beet moss mixture using 20 g or more of beet moss (inventive example) did not cause caking, had a tentative specific gravity of 0.25 g/cc or less, and had a pH near neutral ( HtO) and is excellent as a mixed horticultural soil.

[Example 3] Physical and chemical analysis of the highly uniform granular rock wool/beet moss mixed horticultural soil of the present invention, in which 7 parts by weight of the granular rock wool used in Example 1 was mixed with 3 parts by weight of the beet moss used in Example 1. carried out.

Sono result, pH (HtO): 5.8, electrical conductivity:
0.02+sS/cm, provisional specific gravity: 0. ll g/cc
It is suitable as a plant cultivation medium or a diluent for horticultural soil.

[Example 4] The granular rock wool/beet moss mixed horticultural soil additive of the present invention (rock wool: beet moss = 7 = 3 weight ratio mixture) (temporary specific gravity 0.1
2g/cc, pH (H2O) 6.7) 0% by volume
The mixture was mixed at 67% to 67%. Fill these into a 350cc capacity polyvinyl chloride pot, sow cucumbers, and
It was grown in a glass greenhouse for days.

As a result, as shown in Table 4, the addition of the granular rock wool/beet moss mixed horticultural soil containing the natural zeolite of the present invention increases the number of silver types, that is, promotes root growth, and T/R, which is an index for evaluating seedlings. (ground part/mine weight ratio) was significantly improved.

Table 4 Cucumber seedling growth test [Effects of the invention] The present invention has been described in the above-mentioned effects, and as is clear from the examples, the granular rock wool/beet moss mixture of the present invention has the following effects:
This is a previously unknown mixture that is extremely stable.
It is a bulky mixture with a low tentative specific gravity, making it excellent as a mixed horticultural soil for plant growth or as an additive for mixed horticultural soil.The pH (HtO) is almost neutral, and because it maintains a stable shape, it can be used as a building material. It can be expected to be used as a filling material, etc., and for various other uses.

The use of the present invention as a mixed horticultural soil for plant growth requires extremely favorable chemical components and suitable pH (
Hyo0) value and a small temporary specific gravity, and when handled, it does not clump and there is little risk of the temporary specific gravity becoming large or increasing, so it is extremely easy to handle as a horticultural potting soil. Become.

Therefore, the highly uniform granular rock wool/beet moss mixed horticultural soil of the present invention can be used alone for plant growth, or can be mixed with other horticultural soils as an additive for mixed horticultural soil. You may do so.

Next, a granular rock wool/beet moss mixed horticultural soil containing natural zeolite is prepared by mixing the highly uniform granular rock wool/beet moss mixed horticultural soil additive of the present invention with a mixed soil containing granular natural zeolite as a main component. is an excellent mixed soil that mainly contains natural zeolite and produces an appropriate amount of nitrate nitrogen.We have not only succeeded in reducing the weight of this soil, but also supplying sufficient air to the roots of plants. For the first time, we have been able to provide an excellent mixed horticultural soil that significantly promotes the growth of plant roots.

In addition, the mixed horticultural soil of the present invention can also be suitably used as a plant cultivation medium, a horticultural soil diluent, and the like.

In addition, the granular rock wool/beet moss mixture of the present invention can be obtained by disintegrating the granular rock wool and beet moss using an appropriate sieve and then mixing them to obtain a uniform granular rock wool/beet moss mixture. Uniform and rapid growth is possible.

that's all

Claims (1)

[Claims] 1. Average particle size 1 to 20 mm, tentative specific gravity 0.05 to 0.
For 100 parts by weight of 35g/cc granular rock wool,
Average length 10mm or less, thickness 1mm or less, tentative specific gravity 0.3g
By mixing 10 parts by weight or more of beet moss of /cc or less, the pH (H_2O) is 5.5 to 7.5 and the tentative specific gravity is 0.
Granular rock wool/beet moss mixture with a content of 25 g/cc or less. 2. Average particle size 1 to 20 mm, tentative specific gravity 0.05 to 0.
For 100 parts by weight of 35g/cc granular rock wool,
Average length 10mm or less, thickness 1mm or less, tentative specific gravity 0.3g
By mixing 10 parts by weight or more of beet moss of /cc or less, the pH (H_2O) is 5.5 to 7.5 and the tentative specific gravity is 0.
Granular rock wool/beet moss mixed gardening soil with a content of 25g/cc or less. 3. Average particle size 1 to 20 mm, tentative specific gravity 0.05 to 0.
For 100 parts by weight of 35g/cc granular rock wool,
Average length 10mm or less, thickness 1mm or less, tentative specific gravity 0.3g
By mixing 10 parts by weight or more of beet moss of /cc or less, the pH (H_2O) is 5.5 to 7.5 and the tentative specific gravity is 0.
Granular rock wool/beet moss mixed horticultural soil additive with a concentration of 25 g/cc or less. 4. Average particle size 1 to 20 mm, tentative specific gravity 0.05 to 0.
For 100 parts by weight of 35g/cc granular rock wool,
Average length 10mm or less, thickness 1mm or less, tentative specific gravity 0.3g
By mixing 10 parts by weight or more of beet moss of /cc or less, the pH (H_2O) is 5.5 to 7.5 and the tentative specific gravity is 0.
A granular rock wool/beet moss mixed horticultural soil additive with a content of 25g/cc or less, a granular natural zeolite-based additive, nitrifying bacteria, nitrogen fertilizer,
If necessary, a phosphorus component is added and mixed, and the ammonia nitrogen component is 0.02 to 0.2 g/100 g as N,
Nitrate nitrogen component as N 0.005 to 0.05g/
Contains 100g, pH (H_2O) 6.0 to 7.5,
A mixed soil containing granular natural zeolite as a main component, which has an electric conductivity of 2.0 mS/cm or less and a cation exchange capacity of 50 meq/100 g or more; Beet moss mixed gardening soil. 5. By passing the granular rock wool through a sieve, the average particle size is 1 to 20 mm and the tentative specific gravity is 0.05 to 0.35.
g/cc of granular rock wool was obtained, and 100 parts by weight of this was pre-pulverized and passed through a sieve, with an average length of 10 m.
By mixing 10 parts by weight or more of beet moss with a thickness of 1 mm or less and a tentative specific gravity of 0.3 g/cc or less, p.
H (H_2O) 5.5 to 7.5, tentative specific gravity 0.25 g/
A method for producing a granular rock wool/beet moss mixture having a thickness of cc or less.