JPH0430724A - Turf-growing method for golf course - Google Patents

Abstract

PURPOSE:To accomplish the growth of turf resistant to pests through such processes that chopped charcoal is laid in a laminar form on a turf-growing site and powdery charcoal-mixed soil is put thereon followed by plating turf thereon, thereby raising the temperature of the ground by the charcoal layer and enhancing ground drainability along with absorbing the pesticides existing in the ground to effect preventing their discharge. CONSTITUTION:Chopped charcoal with a size of 2-5cm is laid as a laminar form pref. ca. 30cm thick on a turf-growing site and powdery charcoal-mixed soil is put thereon, and then pref. pyrolignous acid is applied thereon followed by plating turf, thus growing the turf.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a method for growing turf for golf courses, which grows turf that is resistant to pests and diseases.

[Conventional technology]

Generally, when creating a golf course that grows a large amount of grass, the surface layer soil is removed and replaced with soil that has larger particles and better drainage, and drainage pipes are buried underground. Drainage regulating ponds have been installed at key points to improve drainage during rain, and after construction, pesticides and fertilizers are constantly sprayed to ensure that the grass grows healthy.

However, the grass growing method described above requires constant use of large amounts of fertilizer and
Because it is necessary to spray pesticides (hereinafter abbreviated as pesticides), it is expensive to maintain the health of the turf, and pesticides are easily washed away from golf courses by rainfall, causing not only the regulating pond but also groundwater and rivers. There is a problem that it flows into the country and causes environmental pollution.

[Problem to be solved by the invention]

As mentioned above, this invention prevents environmental pollution around golf courses due to the spraying of large amounts of pesticides, and even if large amounts of g chemicals are constantly sprayed after construction, the grass grows well and prevents damage from pests and diseases. The objective is to provide a method for growing turf on golf courses, which is difficult to obtain.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention has a method of laying charcoal cut into small pieces in a layer on the grass growing area, layering powdered charcoal mixed soil on top of this, and planting turf on top of this. was adopted.

Alternatively, it is also possible to adopt a method of spraying pyroligneous acid on the powdered charcoal mixed soil.

[Effect]

The golf course turf growing method according to the present invention configured as described above has good air permeability and drainage properties in the layer of finely divided charcoal, and the charcoal produced at high temperature does not contain any organic nutrients. And because it is alkaline, microorganisms such as mold that decompose organic matter do not grow in this layer. Also, - even if there is rainfall after pesticides are sprayed,
This layered charcoal has high adsorption properties for gases and fine particles, so it quickly adsorbs penetrating pesticides.
Prevent its leakage.

Powdered charcoal mixed soil has a high absorption rate of infrared rays from sunlight, which increases the soil temperature and promotes grass growth.It also improves the carbon-nitrogen balance of the soil, and because it is an alkaline porous material. , improve water retention, heat retention, and other physical properties of soil, eliminate microorganisms existing in the ground,
This will encourage the growth of beneficial symbiotic microorganisms that attach to the roots of the grass. For this reason, grass grows healthy even without constant spraying of pesticides. Powdered charcoal absorbs a portion of the agricultural chemicals that flow out, and also contributes to preventing agricultural chemicals from flowing out.

Furthermore, by spraying pyroligneous acid, which has pest repellent and bactericidal effects, damage from pests and diseases on the lawn is suppressed and rooting is promoted, further reducing the need for spraying pesticides.

〔Example〕

The small pieces of charcoal in this invention are produced in an industrial large-scale continuous carbonization furnace using logs or chips of hardwoods such as oak and beech, or softwoods such as cedar and cypress, as raw materials, and Use lumps with a diameter of about 2 to 50 mm. Such charcoal should be applied to the bottom layer of the grass growing area to a thickness of 20 to 30C1, preferably 30cm.
Lay it in layers of about. This is because if the charcoal layer is less than 20 cm thick or is laid locally, microorganisms that use organic matter as a nutrient source will easily breed within the charcoal layer, which is undesirable.
This is because if the layer thickness exceeds 0 cm, there will be no change in the effect of controlling the growth of microorganisms, and the installation cost will increase, which is not preferred in practice. In order to further enhance the circulation of air (oxygen), a ventilation pipe may be buried in this charcoal layer so that one end of the pipe opens into the slope of the turf cultivation site.

Of course, it is also possible to forcibly exhaust or supply air from one end of the ventilation pipe.

The powdered charcoal mixed soil in this invention is about 10 to 20% by weight of the powdered charcoal separated during the charcoal making process and the topsoil that is removed when making sand or soil. It is mixed in proportion. The powdered charcoal mixed soil may not normally contain fertilizers, but in special cases, organic fertilizers, chemical fertilizers, urea, superphosphate lime, nitrogenous fertilizers, etc. may be added to the powdered charcoal. A mixture may also be used.

The wood vinegar solution used in the present invention is recovered from the process of producing charcoal as described above, or by separately carbonizing wood, i.e., by cooling the wood components that have been evaporated. It contains many types of substances such as methyl alcohol, aldehydes, ketones, ammonia, and organic acids. Although such pyroligneous vinegar may be sprayed as a undiluted solution onto the powdered charcoal mixed soil, it is usually preferable to use a pyroligneous vinegar solution from which soluble tar has been removed. This distilled wood vinegar solution may be mixed as a fungicide when planting grass, and when used as a fungicide and fertilizer after planting, the distilled wood vinegar solution can be mixed with water to about 20 times. Use a diluted version.

Experimental example - According to the turf growing process shown in Figure 1, first, the topsoil of two experimental turf growing sites each with a land area of 247.5 rrr was removed to a depth of approximately 60 cm, and a drainage pipe (not shown) was laid. . Next, as shown in Fig. 2, charcoal from Quercus Quercus cut into small pieces is laid in a layer approximately 30 cm thick at a ratio of 0.3 bo/po on this grass cultivation site to form charcoal layer 1. , to increase ventilation within this layer, the diameter of 30
A plurality of ventilating pipes 4 with openings at both ends each having a charcoal outflow prevention net 3 at one end were arranged, one end protruding onto the slope of the lawn growing site, and the other end buried within the charcoal layer 1. Next, powdered charcoal with a particle size of about 511I11 or less is applied to the topsoil.
Powdered charcoal mixed soil 2 mixed with 0% by weight was laid on the charcoal layer 1 in a layer having a thickness of about 30 c+a, and distilled wood vinegar solution was sprinkled over this at a rate of 1 to 81/rd. Then, in the 1st and 2nd wards, we planted Korai grass or wild grass using the tops that had been sterilized with distilled wood vinegar, creating the soil composition shown in Figure 2, and then added distilled wood vinegar diluted 20 times. The liquid was sprayed appropriately.

In addition, except that the depth required for the soil for growing grass is approximately 30C11, and that the charcoal layer 1 is not used.
The 3rd and 4th wards were created in exactly the same manner as the 1st and 2nd wards and planted with Korean grass or wild grass, and were used as control areas for the experimental areas.

On the 118th day after the planting of the turf, the turf cultivation sites in the 1st to 4th wards of K1 were excavated and the state of root growth was observed and investigated from the longitudinal section. As a result, many of the grass roots in the powdered charcoal mixture ±2 in the 1st and 2nd plots were seen to have grown long enough to reach the charcoal layer 1, and there were many fine roots. This is due to endomycorrhiza, which is a beneficial symbiotic microorganism in the powdered charcoal mixed soil 2, and especially mycelia that have entered the roots of the grass, forming sacs (Ves icu Ie) and dendritic bodies (Arb).
This is thought to be due to the proliferation of VA mycorrhizae that form the turf, and this VA mycorrhizal fungus receives carbohydrates from the roots, and in return absorbs water and nutrients from the soil and supplies them to the grass roots. Estimated. In addition, no growth of microorganisms such as mold was observed in the charcoal layer, and no invasion of grass beetles, ants, moles, etc. was observed in the powdered charcoal mixed soil.

On the other hand, no grass roots of 30CI11 or higher were observed in the third and fourth sections, and it was clearly observed that the grass roots were weaker than those in the first and second sections.

〔effect〕

As explained above, in this invention, a layer of finely divided charcoal raises the soil temperature, improves the drainage of the golf course, adsorbs agricultural chemicals, prevents them from flowing out, and suppresses the growth of harmful microorganisms. On the other hand, spraying powdered charcoal mixed soil and pyroligneous vinegar improves the growth environment for grass roots, so the grass grows well without spraying large amounts of pesticides and is less susceptible to pests and diseases. It has the advantage of being able to grow grass on the field.

[Brief explanation of drawings]

FIG. 1 is a flowchart explaining the turf growing process, and FIG. 2 is a longitudinal cross-sectional view of the turf growing site. 1... Charcoal layer, 2... Powdered charcoal mixed soil.

Claims (2)

[Claims] (1) Spread small pieces of charcoal in layers on the lawn growing area,
A method for growing turf on a golf course, in which powdered charcoal mixed soil is laid on top of this, and turf is planted on top of this. (2) The method for growing grass on a golf course according to claim 1, wherein pyroligneous acid solution is sprayed on the powdered charcoal mixed soil.