JPS62155022A - Artificial soil for growing turf - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical field to be used] This invention relates to artificial soil used for growing grass in grounds or courts for ball games such as golf, soccer, and tennis, as well as in gardens, and particularly for cupolas. Concerning what is obtained by crushing slag.

[Prior art]

Traditionally, river sand has been used to improve drainage and prevent soil walls from consolidating when growing lawns, but in recent years river sand has been in high demand as an aggregate for concrete, and it has become scarce and expensive as a lawn growing material. ing. In addition, soil improvement using river sand has had some success, but there is a problem with its ability to retain water-retentive fertilizer components.

On the other hand, the applicant has developed a bed soil for rice seedling boxes, which has nothing to do with growing lawns, based on cupola slag, and has patented Japanese Patent No. 1285578 (Japanese Patent Publication No. 1285578
011)).

As described in the above publication, the granulated slag generated from this foundry cubicle has a chemical composition as shown in Table 71, and an example of the results based on the fertilizer analysis method is shown in Table 22. That's right.

Tip 1 (%) Chemical composition Table 2 (%) Based on fertilizer analysis method Therefore, the above-mentioned granulated slag from the foundry cupola, which has these properties, has already been used as bed soil for paddy rice seedling boxes. However, it is completely unknown that it can be used for growing grass grown in sports stadiums, gardens, and other places where people step on it, and the present invention can be said to be an application invention in this undeveloped field.

[Problem to be solved]

This invention can of course be used as is or alone for growing lawns, but it can also be used for direct sowing and raising seedlings! It can be used by mixing it with the topsoil of fields or fields, improves soil quality, improves water retention, prevents fertilizer from being washed away by water, prevents caking, and does not affect competition km in stadiums. ,and,
This is so that it can also be used as top soil.

[Means for solving problems]

This invention deals with the 1 4
In the composition of the slag obtained by cooling molten slag at a temperature of 00'C or higher with water, the ratio R of CaO/5i02 is R≧1, the pH is 7.5 to 0°C, and the slag particle size is 41RM or less. The problem was solved by creating artificial soil for growing grass that is porous.

〔how to use〕

A method of using the invention will be specifically explained.

Although it depends on whether the grass seeds or seedlings are to be transplanted or not, and the nature of the soil on the ground, when mixing with bed soil, the topsoil is tilled to a depth of approximately 101:II diameter, and the present invention is applied to this. Approximately 50 to 10% of these materials are evenly mixed and used.

Then, a mat for sowing and seedlings is placed on top of this, and watering is carried out in the same way as for normal cultivation.

As the lawn grows, it is managed by cutting and fertilizing in an unusual manner.When used as top soil, it is used alone or mixed with other materials and sprinkled on the lawn.

〔effect〕

When grass is grown in this way, the growth of stems and leaves is further promoted than on river sand soil, which is said to be the best for growing grass to prevent compaction due to treading pressure, and root development is vigorous, resulting in an ideal overall result. It was brought up to a similar condition.

In addition, the optical surface hardness and resistance of the soil during turf cultivation are not much different from those of the sandy soil, and the underground pH at 3C11 to 5 cm from the ground surface shows a constant value, and there is no significant difference from that using river sand. No negative impact on the ground was observed.

Furthermore, the product of this invention can be used as a top-filling sand as it is, and even on lawn seedlings after the top-filling sand has been applied, it is possible to prevent the balls of ball games played on it from irregularly bowing/doing or shifting. The risk is also about the same as that of normal lawn seedlings.

In addition, since each particle of the present invention is porous, it has excellent air permeability and fertilizer retention, and has the above-mentioned non-caking property.
It has the effect of increasing photosynthetic ability due to the mutual effect of water retention, drainage, and the plant nutrients contained in it, and growing grass that is resistant to treading pressure and climatic stress.

The effects of this invention will now be explained in more detail based on experimental results.

[Experimental example 1. ] Test method Soil test (1) Test period From August 4, 1980 to August 1988
(2) Test turf grass pen cross vent (3) Test soil Control area: Coarse sand experimental area upstream of Tone use (1): The same soil as the control area from the ground surface to 104-j. 20% mixture (area 5i x 4m) Experimental plot ■: 10% mixture (top) Experimental plot ■: 5% mixture (top) (4) Growth method Control on August 4, 1980 Test turfgrass seeds were sown all over the area and the planned experimental area, and they germinated and grew as seedlings in 1982.
On November 1st, the grass in the experimental areas (1), (2) and (3) was removed, and the material of the present invention was mixed in the area up to 10 aR from the ground surface in an amount corresponding to each experimental area. Then, the grass that had just been torn out was planted again in June 1985.
They were nurtured and nurtured until the 30th of May.

As a control plot, the grass was not stripped at all, and the grass was watered four times in the same manner as the experimental plot, and cultivation continued for the same period.

(5) Survey items and survey date The items and survey dates for measuring the results of the experiment are as shown in Table 3.

Table 3 When experiments were conducted using the methods described above, the following results were obtained.

(1) Cutting grass weight 3 times as shown in Table 3; cut to subtext 5 HM on May 30, 1985 and July 9, 1985, and cut to subtext 8 ff on August 12, 1985; Figure 171 shows the total weight converted to an area of 10a, and all the experimental plots showed about 55% of the weight than the control plot. was strong.

As is clear from Table 4 above, the surface and underground pHE
Regarding the change in L and surface hardness, there is no significant difference between the control area containing only river sand and the experimental areas ■■ and ■ (and there is no adverse effect even if the material of the present invention is mixed therein).

(3)-1) Longest root Next, the results of the longest root on the same survey date are shown in Table 5.
As expected, no significant difference was observed between the experimental and control plots.

Table 5 Longest root length (3) -++ Number of stems, dry weight, Table 6 Dry weight, T/R ratio, number of stems However, roots below the cutting height are excluded as stems and leaves.
This shows the part of the stem and leaves that is generally referred to as the ku 7.

The T/R ratio means the ratio of stem and leaf weight/root weight.

/, \// 1-'' Table 7 Dry weight, Le 1 rate, number of stems 6, Table 7 shows that as the cultivation period becomes longer, T/
The R rate was ideal in the experiment ■■ and section 0, and combined with the water retention properties of the material of the present invention due to its porous nature, the risk of summer wilting due to lack of water was significantly reduced9.
It becomes easier to maintain and manage the wide golf field and the stadium.

(4) Inorganic components in the grass Next, the inorganic components in the grass collected on May 30, 1985 are shown in Table 8 below. As is clear from these results, the three fertilizer components and silicic acid components in the experimental plots are higher than in the control plots, and these fertilizer components in the experimental plots ■■ and ■ effectively affect the growth of grass. This shows that it is becoming more active.

Table 8 Inorganic components in turf ○ Analysis of inorganic components other than N using dry ashing method +) N is Kermer method 11) P is vanadomolybdic acid method! Si is measured by gravimetric method. K, Ca, Mg, Mn, and Fe are measured by atomic absorption method. (5) Soil chemistry Finally, the soil chemistry is shown in Table 9.

Table 9 Survey conducted on May 30, 1985 In addition, because of the particle size mentioned above, dust does not fly up even in strong winds or when competitors are ahead, and because it is soluble, the soil remains neutral. have an effect.

[Experimental example 2. ] Test method Top soil test (1) Test period From September 25, 1980 to September 11, 1986 (2) Test grass Korai grass (1 year after turf planting, 1 PIA).

(3) Test soil Mountain sand clay layer (Tee ground at a Fukushima-based Iwaki City golf course) (4) Setting up test areas As shown in Figure 3, 12 areas of 2 x 2 m each were established, ranging from 5 to 16. From the random number table, wards 6.10 and 14 were designated as control wards.

Then, the material of the present invention was sprayed on each plot as shown in Table 1O.

Table 10 Next, on September 11, 1985, the pH, surface hardness of the ground, and air drying were measured for each of the experimental plots, and the results shown in Table 11 were obtained.

As is clear from the above table of results, the hardness of the grass surface is also suitable for use as a teeing ground at a golf course.
The amount of spraying is lower than that of the undefeated area (but the higher the amount of spraying, the better.

In terms of grass growth, dry weight increased by 10% to 20% in the sprayed plots, and significant differences were observed in the growth of stems and roots.

Bar graph by weight of grass clippings converted per 10a in experimental plots and control plots, jp2 Figure shows the state of root growth, spear 3
The figure shows the teeing ground experimental area with a thousand faces.

Patent applicant: Tetsuken Kogyo Co., Ltd. Experimental area r% No.? n Procedural amendment (voluntary) January 30, 1986

Claims (1)

[Claims] In the composition of the slag obtained by cooling the molten slag at a temperature of 1400°C or higher generated in the foundry cupola melting process with water at once, the ratio R of CaO/SiO_2 is R≧1 and the pH is 7.
．． 5 to 6.0, has a slag particle size of 4 mm or less, and is porous.