JPH10182328A - Growth maintenance of lawn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for growing and maintaining lawn, enabling to prevent the pests of the lawn to healthfully grow the lawn, maintain the environment of soil, and save labors for the maintenance. SOLUTION: This method for growing and maintaining lawn comprises spraying (1) 100-500g of a manure mixture comprising an aerobic manure produced by subjecting organic materials to an aerobic fermentation treatment, an anaerobic manure produced by subjecting organic materials to an anaerobic fermentation treatment, and charcoal, and (2) 1-5 liters of a pyroligenous acid diluted into about 500-600 times as growing and maintaining agents on 1m<2> of the lawn. 100-400g/m<2> of water-granulated slag and 50-300g/m<2> of coal ash are further added to the lawn as additional lawn-growing and maintaining agents.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for growing and managing lawns planted in golf courses and gardens.

[0002]

2. Description of the Related Art Generally, fertilization, removal of weeds and pests, sterilization of pathogenic bacteria, and the like are known as means for plant growth management and soil management. In lawn management, chemical fertilizers are provided as a nutrient source for turfgrass, and chemical agents such as insecticides, fungicides, and herbicides are used.

[0003] In addition, turfgrass has a large number of upright stems and roots from the stalks of chrysanthemum. Each of the upright stems and roots eventually withers and has a long life, but new stems and roots come out one after another. It is a perennial plant like a tree. Further, even if the soil is hardened by being trampled by humans or machines, it cannot be cultivated because it is a permanent crop. In addition, turfgrass must always be mowed and grown, which is not only aesthetically pleasing on golf courses,
The point that you always need to cut to a cutting height suitable for the competition,
It is different from general cultivated crops. Therefore, in lawns, a large amount of grass cuttings, dead stems and roots, and weeds other than turfgrass (hereinafter referred to as "satches") are constantly generated in large amounts. Processing is required. If the soil accumulates and is left undegraded for a long period of time, the soil will rot and become a habitat for pathogenic bacteria and pests, causing pests such as large patches and nematodes, as well as reducing the drainage of the lawn and reducing the grass roots. This causes poor growth and yellowing.

[0004] Of course, since thatch is a decayed plant, it can be decomposed by useful bacteria in the soil, and if decomposed, returns to the soil without any problem. If the soil is healthy and rich in useful soil bacteria, such decomposition will be smooth,
And the soil is hard to solidify. However, the continuous use of chemical agents and chemical fertilizers reduces useful soil bacteria, delays the degradation of thatch, and accumulates more and more without being degraded. In particular, the deeper the accumulated thatch layer is, the lower the oxygen state, the lower the activity of the soil bacteria, and the lower the level, the more the above-mentioned various problems occur. Spraying fungicides and insecticides as a measure against pests can temporarily suppress pests and insects, but the use of these agents further reduces the number of useful soil bacteria and makes them farther from soil soundness, cutting off a vicious cycle. It is not possible.

[0005] Further, if chemicals and chemical fertilizers are continuously used, they accumulate in the soil, which hinders the growth of other plants such as trees. In addition, if chemicals and fertilizers that flow on the surface or penetrate the soil flow into rivers, ponds, and groundwater, or if undegraded thatch flows into rivers and ponds and decay, the water will lose transparency and the odor of putrefaction will increase. It can cause outbreaks and adversely affect the aquatic animal ecosystem.

[0006] In recent years, organic farming methods using compost instead of chemical fertilizers have been actively practiced for the purpose of improving crops and improving the soil environment. However, merely supplying compost to the lawn, even if it is a nutrient source for the turfgrass, cannot decompose the deposited thatch and cannot solve the above-mentioned problems caused by the undecomposed thatch. Also, in the case of lawn, the soil cannot be tilled, so it is impossible to perform large-scale aeration by tilling, and soil improvement is not achieved only by changing chemical fertilizer to compost.

[0007] Therefore, in order to remove the thatch, it must be removed by a machine such as a sweeper, and at present, it takes a great deal of time to maintain and manage the lawn.

SUMMARY OF THE INVENTION In view of the foregoing, the present invention provides a lawn cultivation and management method that prevents disease and insect damage to turf and grows healthy turfgrass, maintains the soil environment, and enables labor saving of maintenance and management. Aim.

[0009]

Means for Solving the Problems The turf grass growing management method of the present invention, in order to achieve the above object, basically, as development management agents, lawn 1 m ² per by aerobic fermentation (1) organic material An aerobic fertilizer obtained by decomposition and an anaerobic fertilizer obtained by decomposing organic matter by anaerobic fermentation are used in a weight ratio of 90: 1.
100 to 500 g of a mixture obtained by mixing the mixture at a ratio of 0 to 50:50 and 100 to 500 parts by weight of charcoal powder to 5 to 30 parts by weight per 100 parts by weight of the mixture;
It is characterized by spraying 1 to 5 liters of a wood vinegar solution diluted to 500 times. As a growth control agent, 100 to 400 g of granulated slag and / or 50 g of coal ash are added to the mixed fertilizer and the diluted wood vinegar solution.
~ 300 g is sprayed.

[0010] In the method of the present invention, the growth control agent sprayed on the lawn is a three-component mixed fertilizer comprising an aerobic fertilizer, an anaerobic fertilizer and a charcoal powder, and a wood vinegar solution as a basic component.
There are four types that combine this with granulated slag and / or coal ash.

The aerobic fertilizer is a so-called compost obtained by aerobic fermentation of an organic substance using an aerobic bacterium that works actively in the presence of oxygen and decomposing the organic substance. Contained and decomposed organic matter promotes growth as a nutrient source for turfgrass. Decomposed organic matter not used for turfgrass nutrition returns to the soil, and aerobic bacteria act as useful soil bacteria in the soil.

[0012] Such an aerobic fertilizer may be in accordance with a known method of producing compost, and aerobic bacteria are added to various organic substances to ripen them, and the organic substances are fermented and decomposed while culturing the aerobic bacteria in an aerated environment. I do. Examples of the organic substance include soybean curd, rapeseed meal, straw, chaff, grass, rice bran, waste oil of edible oil, animal excrement, and the like. preferable. The type of the aerobic bacteria is not particularly limited as long as the organic matter can be decomposed by aerobic fermentation, and Bacillus subtilis group, acetic acid group, true yeast group, breathable lactic acid bacteria group, hydrogen bacteria group, normal line Various bacteria such as a fungus group and a filamentous fungus group can be exemplified.

It is preferable to use a mature aerobic fertilizer which is fully matured in that an excellent fertilizing effect can be obtained quickly. For example, about 10 kg of an aerobic bacterium is mixed with 10 tons of organic matter, and the mixture is aged at 40 to 80 ° C. for several months. In addition, even if some immature organic matter remains in the aerobic fertilizer, aerobic bacteria are decomposed in the surface layer of the soil, and even if they enter deeper parts, the anaerobic bacteria described below are decomposed and decomposed. Will return to the soil.

On the other hand, anaerobic fertilizers are fertilizers obtained by decomposing organic substances by anaerobic fermentation using anaerobic bacteria which actively work in the presence or absence of trace amounts of oxygen. Rather than aiming mainly at the fertilizer effect of decomposed products, by supplying anaerobic bacteria grown as a culture place to organic matter into the soil, it decomposes the undegraded thatch and generates antibacterial substances and organic acids. The main purpose is to In other words, the main purpose is to suppress the disease and pest by quickly decomposing the undegraded thatch which becomes the habitat of the pathogenic bacteria and pests, and to form a sterilized soil in which the disease and pest are hardly generated by the produced antibacterial substance. . Further, the organic acid promotes activation of useful soil bacteria. Anaerobic bacteria operate with little consumption of oxygen in the soil, decompose undegraded thatch, and the degraded products return to the soil. The anaerobic bacteria themselves continue to be useful soil bacteria.

[0015] Such an anaerobic fertilizer is produced by adding an anaerobic bacterium to an organic substance and maturing the same, and anaerobically fermenting and decomposing the organic substance while cultivating the anaerobic bacterium, similarly to the aerobic fertilizer. As the organic matter, the same materials as those used for the above-mentioned aerobic fertilizer can be used.However, among these, germs are already heated and germs are removed. Okara is particularly preferred because it is easy to adjust the fermentation. In addition, in order to produce a medium-ripened fertilizer described below, an organic substance having a high water content such as okara and easily fermented and decomposed, and an organic substance having a low water content such as rapeseed meal and a long fermentation decomposition time are used in combination. It is also preferable that the anaerobic bacteria can be sufficiently propagated and the activity of the bacteria after spraying can be maintained for a long time. In addition, the anaerobic bacteria can be used as long as they do not harm vegetation. Facultative anaerobic bacteria that are active in the presence of a small amount of oxygen are easy to handle, and there are many species useful for vegetation. Examples include lactic acid bacteria, lactobacilli, Escherichia coli, and actinomycetes. Also, photosynthetic bacteria which do not harm vegetation even with obligate anaerobic bacteria can be used. Among these anaerobic bacteria, Lactobacillus is particularly preferred in that it produces many antibacterial substances and organic acids by fermentation.

When the anaerobic fertilizer is matured, the fermentation effect of the fermentation decomposed product increases when the fermentation is completed. However, since the anaerobic bacteria feed is consumed, the anaerobic fertilizer is not allowed to grow. In the direction of death, the activity of the bacterium decreases. In the present invention, fertilizer effect is entrusted to the aerobic fertilizer, and anaerobic fertilizer has a main purpose of forming a sterilized soil by decomposition of thatch and generation of an antibacterial substance, rather than fertilizer effect. It is preferable to use it in a high state. In the case of a medium-ripening fertilizer in which immature organic matter remains, even after spraying, the immature organic matter becomes a feed for anaerobic bacteria, activates the bacteria, and promotes the degradation of thatch and the production of antibacterial substances. In addition, even if anaerobic bacteria are sprayed alone without mixing with organic substances, or even when organic substances are used and fermentation is not so much promoted, the degradation of thatch is also delayed due to the low activity of the bacteria, and antibacterial substances And so on. In such an effect, the most efficient degree of fermentation is a state in which organic matter is fermented and decomposed by about 5 to 30%. The time required for fermentation varies depending on the type of organic matter and bacteria, the amount of bacteria to be initially charged, the fermentation environment, and the like. In the case of using okara and rapeseed meal as an organic matter, for example, these organic substances are 10 tons. 10 anaerobic bacteria
and fermentation at a low temperature of 20 to 50 ° C.
In 20 days, the above-mentioned medium fertilizer can be obtained. In addition, 2
By aging at a low temperature of 0 to 50 ° C., almost no rotten odor is generated and there is no discomfort after spraying.

The mixing ratio of the aerobic fertilizer and the anaerobic fertilizer is 90:10 to 50:50 by weight. If the amount of the aerobic fertilizer is less than this range, the fertilizer effect is poor and a sufficient turfgrass growth effect cannot be obtained. On the other hand, when the amount of the anaerobic fertilizer decreases, the degradation of the satch is delayed, and the amount of the antibacterial substance produced is decreased. Also, the preferred compounding ratio varies depending on the type of turfgrass, and 90:10 for western turf such as bent turf.
60:40 is preferable, and 8 is used for Japanese turf such as wild turf and Koryo turf.
0:20 to 50:50 is preferred.

The charcoal powder is rich in alkali, promotes the metabolism of turfgrass, increases the resistance to pathogenic bacteria and pests, suppresses pests and insects, and prevents soil acidification to improve soil health. In addition, since charcoal is porous and has an effect of promoting the growth of bacteria by forming a nest of useful soil bacteria, the charcoal powder is mixed with organic substances and bacteria in the aforementioned aerobic and anaerobic fertilizer production stages. You can keep it.

The amount of such charcoal powder is based on 100 parts by weight of the mixture of the aerobic fertilizer and the anaerobic fertilizer.
It must be 5 to 30 parts by weight. If the amount is less than 5 parts by weight, the effect is poor, and even if the amount is more than 30 parts by weight, the effect is saturated. Particularly preferred ingredients are 10 to 15 parts by weight. In addition, the particle size of the charcoal powder is such that even if the fine powder has poor water permeability and the diluted wood vinegar liquid described later is sprayed, the mixed fertilizer does not sufficiently penetrate and the anaerobic bacteria can be supplied into the undecomposed thatch deposited. Can not. The preferred particle size of the charcoal powder is 2 to 8 mm.

The mixed fertilizer obtained by mixing the aerobic fertilizer, the anaerobic fertilizer and the charcoal powder is 100 per m ^{2 of} lawn.
Spray ~ 500g. If the amount is less than 100 g / m ² , the fertilizing effect is poor and the decomposition of thatch is slow. ^{On the other hand} , if it exceeds 500 g / m ² , the fertilizing effect is saturated and it is economically wasteful. A preferred application rate is 150 to 300 g / m ² , and a particularly preferred application rate is 200 to 250 g / m ² .

Wood vinegar is a black-brown liquid product obtained by carbonizing wood, and contains organic acids such as acetic acid, propionic acid and butyric acid, and is useful soil bacteria and aerobic bacteria and anaerobic bacteria used in the present invention. It promotes the growth of turfgrass and suppresses pests and insects by promoting the growth of bacterium. Further, by spraying the liquid, it is possible to obtain an effect that the solid mixed fertilizer is penetrated into the deposition thatch or the soil, and the activity range of the fungus is expanded to a deep portion. The spraying amount may be ² to 100 ml / m ² in terms of a stock solution in order to promote turfgrass growth and control pests and insects. However, if the stock solution is sprayed as it is, it will be too small to make uniform spraying. It cannot be sufficiently penetrated. Also, depending on the temperature, turfgrass burns leaves, making it worse. On the other hand, if the amount of liquid is too large, it will not permeate the soil and will flow on the ground surface, resulting in waste. Therefore, in the present invention, the wood vinegar is diluted 50 to 500 times with water to make the volume 1 to 5 liters and sprayed. The preferred application rate is
One to two liters of a 100- to 300-fold dilution is used.

Granulated slag is a by-product of metal refining and production, and is rich in silicic acid and minerals.
Alkaline around H9. And dissolved in wood vinegar,
Minerals are supplied to the soil to improve the soundness of the soil and to increase the resistance of turfgrass to pests.
In addition, it is a fine grain and can be used as a grain sand of the three-type mixed fertilizer. The application amount of such granulated slag is 1
If it is less than 00 g / m ² , the above effect is poor, and
^If it exceeds ² , the soil is too alkaline and unfavorable for vegetation. Therefore, the application amount of granulated slag is 100 to
400 g / m ² , especially 150-250
g / m ² is preferred.

Coal ash is a thermal decomposition or oxidation product of the inorganic components of coal, and includes Si, Fe, Ca, Mg, K, P,
Contains oxides such as Al, Ti, S, etc., is neutral to alkaline at pH 7 to 9, and forms clinker. Then, the activity of the anaerobic bacteria described above is activated to increase the decomposition rate of thatch, and the soil is made alkaline by making the soil alkaline. Also, coal ash has the effect of dwarfing plants.
When the grass is dwarfed and the plant height is shortened, the stems are not cut off and only the leaves are cut off even when cutting at the same cutting height, so that the grass becomes lush and beautiful immediately after cutting. Cutting down the stalks not only makes the lawn white and unsightly, but also damages the grass and withers. Turfgrass dwarfing improves this. In addition, dwarfing of turfgrass increases the number of buds, resulting in a beautiful lawn. On the other hand, when the weeds dwarf, they do not come out of the ground surface even when they germinate, and eventually die while buried in the soil, the same as when weeds are fermented and decomposed by the aforementioned anaerobic bacteria and weeded. State. If the coal ash is less than 50 g / m ² , the above effect is poor. If the coal ash is more than 300 g / m ² , the degree of dwarfing may be excessively increased and turfgrass may be removed. Therefore, the spray amount of coal ash is 50 to 300 g.
/ M ² and should be, in particular 80 to 200 g / m ² is preferred.

The minerals contained in the granulated slag and coal ash form organic acid calcium, organic acid magnesium and the like together with the organic acid in the wood vinegar solution, and the soil of the soil is absorbed by the diluted wood vinegar solution. It is also supplied to deep parts and promotes the propagation of useful soil bacteria, especially the anaerobic bacteria. As a result, the decomposition of dead grass and the roots of weeds and the like are promoted, and disease and insect damage is suppressed, and healthy grass is grown.

The method of spraying the lawn growth management agent is not particularly limited, but is preferably sprayed by the following method to obtain the maximum effect.

(1) Coring the soil. Coring promotes ventilation to the root area of the turfgrass and ensures that growth management agents, especially anaerobic bacteria, are also provided deep into the soil.

(2) Among the lawn growth management agents mixed at a predetermined ratio, three types of mixed fertilizers, which are solid components, or a mixture of granulated slag and coal ash are sprayed. At this time, if the solid component is only a mixture of three kinds of fertilizers, it is easier to mix the sand as appropriate when the sand is mixed, and the effect of the sand as a sand for protecting turf grass and the like can be obtained. When granulated slag and coal ash are also sprayed, this may be used as mesh sand, or mesh sand may be added separately. Of course, spraying aerobic fertilizers, anaerobic fertilizers, charcoal powder, granulated slag, and coal ash alone does not change the lawn growth effect, but spraying them as a mixture increases the amount. This facilitates uniform spraying and saves time and labor for spraying.

(3) Next, rub the grass surface with a mat or the like,
The core is filled with a solid component of the growth controlling agent. By this operation, solid components, particularly anaerobic fertilizers, can be reliably supplied to the deep part.

(4) Spray the diluted wood vinegar solution. By spraying the liquid, the solid component can be penetrated into the deposition thatch or the soil. Also, since it is sprayed as a diluent, it also serves as irrigation. In addition, if the solid component can be sufficiently penetrated, the effect is not changed even if the solid component and the diluted wood vinegar are mixed and sprayed simultaneously. However, at present, it is difficult to uniformly spray a mixture of a solid and a liquid over a large area such as a lawn. Therefore, it is preferable to spray them separately.

[0030]

Next, a specific embodiment of the lawn growing management method of the present invention will be described.

As a material for the growth management agent sprayed on the lawn,
I prepared the following:

[Aerobic ripe compost (aerobic fertilizer and charcoal powder)] Commercially available composite aerobic fertilizer (trade name "Hybrid", Fukunaga 10 tons was added and mixed well, and the temperature in the tank was maintained at 60 to 80 ° C. while supplying air into the fermenter, and the mixture was aged for 2 months to obtain an aerobic fertilizer. Further, 15 g of charcoal powder was added to 100 g of the aerobic fertilizer to obtain an aerobic ripe compost.

[Anaerobic Medium-Rich Compost (Anaerobic Fertilizer and Charcoal Powder)] A commercially available complex anaerobic bacterium mainly composed of lactic acid bacteria, lactobacilli, and true yeast (trade name "Lacto. Bacillus ", manufactured by Caltech Co., Ltd.), 10 kg of charcoal powder and 1 ton of charcoal powder were added and mixed well.
Primary fermentation was carried out at 24 ° C. for 24 hours. Next, 5 tons of rapeseed meal was added to the primary fermented product, and the temperature in the tank was adjusted to 20 to 5 minutes.
After aging for 24 hours at 0 ° C, sealed and packaged for 15 hours
It was allowed to stand in the dark for two days, and was subjected to secondary fermentation. By this fermentation, about 10% of the mixed organic matter of okara and rapeseed meal was decomposed, and a mature anaerobic compost was obtained. The anaerobic medium-ripened compost substantially contains 15 g of charcoal powder for 100 g of the anaerobic fertilizer according to the present invention due to weight change accompanying anaerobic fermentation.

(Wood vinegar) Each of the components shown in Table 1 was diluted with water each time it was used.

[0035]

[Table 1]

(Granulated slag) The slag having the component composition shown in Table 2 was used.

[0037]

[Table 2]

(Coal ash) The component composition shown in Table 3 was used, and the particle size was 5
mm clinker was used.

[0039]

[Table 3]

Then, in each of the examples, a lawn growth management agent was added in the proportions shown in Table 4, and the mixture was prepared as in Examples 1 to 4.
Was sprayed on bent grass, and Examples 5 to 8 and Comparative Examples 1 and 2 were sprayed on Koryo grass. The lawns used in these experiments have been fed with chemical fertilizers and chemicals for a long time, and although the usual usual care such as aeration, graining, and mechanical removal of thatch has been performed, the leftover thatch has been removed. It accumulates undegraded and the soil is solidified and slightly acidified.

In the above-mentioned growth management agent, the charcoal powder is mixed at the time of production of the aerobic fully mature compost and the anaerobic medium mature compost, and Table 4 shows the use of the aerobic fully mature compost and the anaerobic medium mature compost. Amount of aerobic and anaerobic fertilizers in the form corresponding to the claims, together with the amount, the total amount of
The blended parts by weight of the charcoal powder and the converted value of the amount of the mixed fertilizer obtained by mixing these three types with respect to 0 parts by weight are also shown.

[0042]

[Table 4]

The method of spraying the growth control agent is as follows.

Prior to spraying the lawn growth controlling agent, a core having a diameter of 2.5 cm and a depth of 8 cm was applied to the surface of the lawn soil for 1 m ^2.
25 pieces were formed.

Next, a predetermined amount of aerobic fertilizer, anaerobic fertilizer,
Charcoal powder, or granulated slag and coal ash were mixed with the sand and sprayed on the grass surface. After spraying, the mat was rubbed against the grass surface to drop solid components into the core. Then, a predetermined amount of diluted wood vinegar was sprayed on the lawn surface.

In each of the examples, the first application of the growth management agent was carried out in the middle of May by the method described above, and the second application was carried out in the same manner in the middle of September. After the passage and one year later, the condition of the lawn and soil was observed. During this time, the pruning, irrigation, etc. were performed as usual, and the mechanical removal of the Thatch was not performed.

In Comparative Examples 1 and 2, based on the conventional lawn growth management method, aeration by coring was performed, and the first application of chemical fertilizer was performed in mid-May, and thereafter, approximately once every three months. Of chemical fertilizer was sprayed four times a year. Further, in Comparative Example 2, the herbicide was sprayed appropriately in the spot twice during the period immediately before the emergence and emergence of the seeds of the weeds in the spring and autumn, and during the infancy of the weeds. The agent was sprayed. In addition, in both Comparative Examples 1 and 2, mesh sand was appropriately sprayed.
Then, as in the example, the pruning, irrigation, etc. were performed as usual for one year, the mechanical thatch was not removed, the grass and the grass were removed three weeks after the first chemical fertilizer application and one year later. The condition of the soil was observed. The chemical fertilizers used in Comparative Examples 1 and 2 were trade names such as “Arrow Kasei” (manufactured by Toa Kasei Co., Ltd.), and the insecticides were trade names “Darthban Emulsion” (manufactured by Dow Chemical Japan Co., Ltd.) and trade names “ Miminzu wettable powder (manufactured by Tomo Green Chemical Co., Ltd.), fungicide trade name "Monceren wettable powder" (manufactured by Nippon Bayer Agrochem Co., Ltd.) and trade name "Glancer wettable powder" (Sumitomo Chemical Co., Ltd. The herbicides manufactured by the company are trade name “Banafin Granule Wettable Powder” (Shionogi Co., Ltd.) and trade name “Ranley Emulsion” (Kumiai Chemical Industry Co., Ltd.).

As a result of observing the lawn after three weeks and one year, all the lawn grass of the examples had beautiful green leaves and fast growth after cutting. In addition, the roots improved and the stems became thick and durable, making it hard to fall down when stepping on it. Such growth was remarkable when granulated slag was sprayed (Examples 2, 4, 6, and 8).

The cut was decomposed until the next pruning even if it was left without being removed after pruning, and there was no accumulation of undecomposed thatch even after one year. In particular, when coal ash was sprayed (Examples 3, 4, 7, and 8), the decomposition rate was increased. In addition, the turfgrass has become tougher and the turfgrass itself has increased resistance to pests and insects.In addition, since thatch has not been accumulated and remains undecomposed, large patches and nematodes do not occur, and earthworms also decrease. did. Especially,
When the granulated slag was sprayed, these pests were significantly suppressed (Examples 2, 4, 6, and 8). In addition, by spraying fertilizers rich in aerobic and anaerobic bacteria and quickly decomposing thatch, the soil that was weakly acidic turned to neutral and adapted to vegetation and solidified hard. The soil that had been softened.

Further, by spraying coal ash (Example 3,
4, 7, 8), since the turfgrass was dwarfed and the plant height was shortened to about 60%, the damage to the stem due to pruning was reduced, which also had a favorable effect on the growth of the turfgrass. Also,
Due to the dwarfing of turfgrass, the generation of thatch itself was reduced, and the decomposition of thatch was completed in a short time. In addition, the weeds gradually became dwarf and did not germinate on the ground.

On the other hand, in Comparative Examples 1 and 2 in which the chemical fertilizer was sprayed, although the growth of turfgrass was maintained to some extent by the fertilizer effect of the chemical fertilizer, disease and insect damage occurred and the soil environment was not improved. In Comparative Example 2, insecticides, fungicides, and herbicides were sprayed, so that pests and insects were suppressed and weeds decreased, but soil acidification and solidification proceeded, and the soil environment deteriorated. ing.

Table 5 summarizes the observation results.

[0053]

[Table 5]

[0054]

Depending the foregoing, development management method lawn of the first invention, as the development management agents, lawn 1 m ² per
(1) a mixture obtained by mixing an aerobic fertilizer obtained by decomposing organic substances by aerobic fermentation and an anaerobic fertilizer obtained by decomposing organic substances by anaerobic fermentation in a weight ratio of 90:10 to 50:50; , 5 to 30 parts by weight per 100 parts by weight of the mixture
100 to 5 mixed fertilizers containing 3 parts by weight of charcoal powder
Since 1 to 5 liters of 00g, (2) and 50 to 500-fold diluted wood vinegar are sprayed, healthy turfgrass that is strong against pests and insects is grown and thatch is quickly decomposed. Therefore, the number of pathogenic bacteria and pests that live in the undegraded thatch is reduced, and the turfgrass itself is more resistant to pests and insects, thereby reducing the damage caused by the pests. In addition, since useful soil bacteria are abundant, the amount of antibacterial substances generated increases, the soil becomes a sterilized soil, further suppressing pests and insects, and maintaining a pH suitable for vegetation and a healthy soil that is difficult to solidify It becomes soil. Further, the activity of the useful soil bacteria is promoted by the organic acid generated by the useful soil bacteria, resulting in a virtuous cycle.

Further, in the second invention, by adding 100-400 g / m ² of granulated slag as a growth control agent, in addition to the effect of the first invention, the growth of turfgrass is further promoted, and Is also remarkably suppressed.

Further, in the third invention, by adding 50 to 300 g / m ² of coal ash as a growth control agent, in addition to the effect of the first invention, turfgrass is dwarfed and stalk cutting by cutting is performed. It is beautiful even immediately after mowing, and turfgrass is not damaged. Also, the weeds are dwarfed and no longer germinate on the ground, and are weeded. In addition, the speed of disassembly of the satch is increased.

Further, in the fourth invention, by adding both granulated slag and coal ash as growth management agents, in addition to the effects of the first invention, further promotion of turfgrass growth and suppression of disease and pests can be achieved. In addition, dwarfing of turfgrass makes the lawn sounder, weeding by weeding, and accelerating the degradation of thatch.

The aerobic fertilizer used in the first to fourth inventions is a mature fertilizer in which organic substances are completely decomposed by aerobic fermentation. Is promoted. In addition, anaerobic fertilizer is a medium fertilizer in which immature organic matter remains during the decomposition reaction by anaerobic fermentation, especially since the activity of anaerobic bacteria is high, so that the degradation of thatch and the generation of antibacterial substances and organic acids Promoted.

In these inventions, since the hatch is disassembled by spraying the growth management agent, it is not necessary to remove the hatch mechanically after cutting, and labor for grass maintenance can be greatly reduced. In addition, since weeding is performed when coal ash is used, labor can be saved in this respect as well. In addition, since the sprayed growth management agent and the decomposed thatch return to the soil, they do not destroy the natural environment.

Claims (6)

[Claims] (1) An aerobic fertilizer obtained by decomposing organic substances by aerobic fermentation and an anaerobic fertilizer obtained by decomposing organic substances by anaerobic fermentation per 1 m ^{2 of} lawn as a growth control agent in a weight ratio of 90: A mixture obtained by mixing the mixture at a ratio of 10 to 50:50, and a mixed fertilizer of three kinds in which 5 to 30 parts by weight of charcoal powder are blended with respect to 100 parts by weight of the mixture, for 100 to 50 parts
0 g, (2) and 1 to 5 liters of a 50- to 500-fold diluted wood vinegar solution are sprayed on the lawn for growing and controlling. As wherein development management agents, lawn 1 m ² per (1) anaerobic fertilizer made by decomposed by anaerobic fermentation aerobic manure and organic made by decomposed by aerobic fermentation organics in a weight ratio 90: A mixture obtained by mixing the mixture at a ratio of 10 to 50:50, and a mixed fertilizer of three kinds in which 5 to 30 parts by weight of charcoal powder are blended with respect to 100 parts by weight of the mixture, for 100 to 50 parts
0 g, (2) 100 to 400 g of granulated slag, (3) and 1 to 5 liters of a wood vinegar solution diluted 50 to 500-fold are sprayed. 3. A growth control agent per 1 m ^{2 of} lawn: (1) an aerobic fertilizer obtained by decomposing organic substances by aerobic fermentation and an anaerobic fertilizer obtained by decomposing organic substances by anaerobic fermentation in a weight ratio of 90: A mixture obtained by mixing the mixture at a ratio of 10 to 50:50, and a mixed fertilizer of three kinds in which 5 to 30 parts by weight of charcoal powder are blended with respect to 100 parts by weight of the mixture, for 100 to 50 parts
0 g, (2) 50 to 300 g of coal ash, and (3) 1 to 5 liters of a 50- to 500-fold diluted wood vinegar solution. As wherein development management agents, lawn 1 m ² per (1) anaerobic fertilizer made by decomposed by anaerobic fermentation aerobic manure and organic made by decomposed by aerobic fermentation organics in a weight ratio 90: A mixture obtained by mixing the mixture at a ratio of 10 to 50:50, and a mixed fertilizer of three kinds in which 5 to 30 parts by weight of charcoal powder are blended with respect to 100 parts by weight of the mixture, for 100 to 50 parts
0g, (2) 100-400g of granulated slag, (3) 50-300g of coal ash, (4) and 1-5 liters of wood vinegar diluted 50-500 times Upbringing management method. 5. The method according to claim 1, wherein the aerobic fertilizer is a mature fertilizer in which the organic matter is completely decomposed by aerobic fermentation. 6. The method according to claim 1, wherein the anaerobic fertilizer is a medium-ripening fertilizer in which immature organic matter remains during a decomposition reaction by anaerobic fermentation.