JPS63146723A - Soil conditioning method - Google Patents
Soil conditioning methodInfo
- Publication number
- JPS63146723A JPS63146723A JP61290534A JP29053486A JPS63146723A JP S63146723 A JPS63146723 A JP S63146723A JP 61290534 A JP61290534 A JP 61290534A JP 29053486 A JP29053486 A JP 29053486A JP S63146723 A JPS63146723 A JP S63146723A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- actinomycetes
- value
- filamentous fungi
- conditioning method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims description 44
- 238000000034 method Methods 0.000 title claims description 7
- 230000003750 conditioning effect Effects 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 230000003113 alkalizing effect Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 5
- 241000186361 Actinobacteria <class> Species 0.000 description 17
- 241000233866 Fungi Species 0.000 description 16
- 230000035755 proliferation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000021962 pH elevation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、土壌改良方法に関するもので、更に詳しくは
、土壌中の生態系を整えることによって土壌改良を行う
方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a soil improvement method, and more particularly to a method for soil improvement by adjusting the ecosystem in the soil.
［従来の技術］
従来、農地の土壌は、一般に中性から弱酸性であること
が好ましいとされており、このような観点から土壌の状
態を適正に保つことが行われている０例えば、肥料とし
ての硫酸アンモニウムの使用による土壌ＰＨ値の偏りを
防止するため、炭酸カルシウムを散布して中和を図るこ
と等が行われている。[Prior Art] Conventionally, it has been said that it is generally preferable for farmland soil to be neutral to slightly acidic, and from this point of view, soil conditions have been maintained appropriately. In order to prevent the soil PH value from becoming unbalanced due to the use of ammonium sulfate, methods such as spraying calcium carbonate to neutralize the soil have been carried out.
一方、土壌の良否は土壌中の生態系によって大きな影響
を受けると言われており、特に土壌中に生存する放線菌
と糸状菌の割合がほぼ７：３のときが良い状態であると
されている。On the other hand, the quality of soil is said to be greatly influenced by the ecosystem within the soil, and it is said that soil is in particularly good condition when the ratio of actinomycetes to filamentous fungi living in the soil is approximately 7:3. There is.
［発明が解決しようとする問題点］
しかしながら、上記従来のｐＨ値に基づく土壌改良では
、仮にｐＨ値を好ましい範囲に２１！Ｈ１ても、思うよ
うな結果に結び付かないことが度々生じている。即ち、
土壌のｐＨ値は適正であるとされている中性もしくは弱
酸性であるにも拘らず、生育不良や収穫量の減少を招い
てしまっている。[Problems to be Solved by the Invention] However, in the conventional soil improvement based on the above-mentioned pH value, if the pH value is set to a preferable range of 21! Even with H1, it often happens that the desired results are not achieved. That is,
Although the pH value of the soil is neutral or slightly acidic, which is considered to be appropriate, this results in poor growth and reduced yields.
また、土壌中の放線菌と糸状菌の生存割合の調整は、具
体的な調整手段がないためにほとんど行われていないの
が現状である。Furthermore, the survival ratio of actinomycetes and filamentous fungi in soil is hardly adjusted at present because there is no specific adjustment method.
［問題点を解決するための手段］
ところで、本発明者が各地の土壌を採取して培養を行っ
た結果、ｐＨ値を適正な範囲に調整しているにも拘らず
良い結果の得られていない地域では、放線菌に比して糸
状菌が異常に多くなっていることか判明した。[Means for solving the problem] By the way, as a result of the present inventor collecting soil from various places and culturing it, it was found that good results were not obtained even though the pH value was adjusted to an appropriate range. It was found that filamentous fungi were abnormally more abundant than actinomycetes in areas where there were no.
本発明は、上記本発明者が見出した事実に基づき、放線
菌と糸状菌の割合を適切に調整できるようにすることに
よって前記問題点の解決を図ったもので、土壌に、散布
直後の土壌のｐＨが９〜１３となるようアルカリ化剤を
散布して放置期間を設けるという手段を講じているもの
である。The present invention aims to solve the above-mentioned problems by making it possible to appropriately adjust the ratio of actinomycetes and filamentous fungi, based on the fact discovered by the inventor. In this method, an alkalizing agent is sprayed and a period of time is set so that the pH becomes 9 to 13.
本発明で用いるアルカリ化剤としては、作物に対して悪
影テを与えることなく土壌をアルカリ化し得るものであ
ればよいが、入手容易性、無害性等の理由から、水酸化
カルシウム、酸化カルシウム等が好ましい。これらのア
ルカリ化剤は、通常粉粒状のものをそのまま散布するが
、水懸濁液として散布してもよい。The alkalizing agent used in the present invention may be any agent that can alkalinize soil without adversely affecting crops, but calcium hydroxide, calcium oxide, etc. etc. are preferred. These alkalizing agents are usually sprayed as they are in the form of powder, but they may also be sprayed as an aqueous suspension.
上記アルカリ化剤は、散布直後の土壌のｐＨ値が９〜１
３となるよう散布されるものであるが、このｐＨ値は１
０〜１２であることが好ましい。アルカリ化剤による土
壌のアルカリ化は、糸状菌の繁殖抑制によって放線菌の
繁殖を助長するもので、この散布直後の土壌のｐＨ値が
低過ぎると、糸状菌の繁殖を十分抑制できず、放線菌の
繁殖を効果的に促すことができなくなる。逆に土壌のｐ
Ｈを高くし過ぎると、放線菌の繁殖をも抑制してしまい
やすくなる。The above alkalizing agent has a soil pH value of 9 to 1 immediately after application.
3, but this pH value is 1
It is preferable that it is 0-12. Alkalinization of soil with an alkalizing agent promotes the proliferation of actinomycetes by inhibiting the proliferation of filamentous fungi.If the pH value of the soil immediately after application is too low, the proliferation of filamentous fungi cannot be sufficiently suppressed, resulting in actinomycetes. It becomes impossible to effectively promote the proliferation of bacteria. On the contrary, soil p
If H is made too high, the propagation of actinomycetes is also likely to be inhibited.
アルカリ化剤を散布した後にとる放置期間は、５〜ｌＯ
日、好ましくは７〜１０日である。この放置期間中に土
壌中で放線菌が繁殖して増大し、放線菌と糸状菌のバラ
ンスが適正に調整されることになる。また、アルカリ他
剤散布直後の土壌の高いｐＨ値は、この放置期間中に土
中の二酸化炭素によって自然と中和されて徐々に低下し
、作物の作付に支障のない値となる。従って、作物の作
付は、この期間の経過した後に行えばよい。The standing period after spraying the alkalizing agent is 5 to 10
days, preferably 7 to 10 days. During this standing period, actinomycetes multiply and increase in the soil, and the balance between actinomycetes and filamentous fungi is properly adjusted. In addition, the high pH value of the soil immediately after spraying alkaline chemicals is naturally neutralized by carbon dioxide in the soil during this period of time, and gradually decreases to a value that does not pose a problem for crop planting. Therefore, crops may be planted after this period has elapsed.
［作 用］
土壌を一時的ではあるが高いｐＨ値下におくことによっ
て放線菌と糸状菌のバランスが回復される理由は必ずし
も明らかではないが、本発明者は次のように推測してい
る。即ち、放線菌は比較的アルカリに強い菌が多いのに
対し、糸状菌は比較的アルカリに弱い菌が多いと考えら
れる。これは、培養した放線菌をアルカリ液に浸してお
いてもほとんど死滅するようなことはないが、培養した
糸状菌をアルカリ液に浸しておくとその多くが死減して
しまうことからもうかがえる。従って、土壌がある程度
の高いｐＨ値下におかれると、糸状菌の一部は死減し、
一部は活動が抑制されることになり、それまで活発な糸
状菌の繁殖によって押えられていた放線菌の繁殖が活発
化されて、両者のバランスが回復されるものと考えられ
る。[Function] The reason why the balance between actinomycetes and filamentous fungi is restored by temporarily exposing the soil to a high pH value is not necessarily clear, but the inventor speculates as follows. . That is, it is thought that many actinomycetes are relatively resistant to alkali, whereas many filamentous fungi are relatively weak to alkali. This can be seen from the fact that even if cultured actinomycetes are immersed in alkaline solution, they will hardly die, but if cultured filamentous fungi are immersed in alkaline solution, most of them will die. . Therefore, when the soil is exposed to a certain high pH value, some of the filamentous fungi die and decrease.
It is thought that the activity of some of them will be suppressed, and the reproduction of actinomycetes, which had been suppressed by the active reproduction of filamentous fungi, will be activated, and the balance between the two will be restored.
［実施例］
第１表に示される土壌Ａ、Ｂ、Ｃについて、寒天培地で
培養を行い、各々に含まれる放線菌と糸状菌の割合を測
定した。測定の基準は、肉眼で放線菌が繁殖していると
認められる領域と、糸状菌が繁殖していると認められる
領域の面積を各々算出し、その面積比をもっておおよそ
の両者の割合とした。また、各土壌のｐＨ値を測定した
。結果を第１表に示す。[Example] Soils A, B, and C shown in Table 1 were cultured on an agar medium, and the proportions of actinomycetes and filamentous fungi contained in each soil were measured. The standard of measurement was to calculate the area of the area where actinomycetes are seen to be breeding with the naked eye and the area where filamentous fungi are found to be breeding, and the area ratio was used as the approximate ratio of the two. Additionally, the pH value of each soil was measured. The results are shown in Table 1.
第１表
上記土壌Ａ及びＢについては水酸化カルシウムを散布し
、Ｃについては酸化カルシウムを散布して、土壌Ａにつ
いてはｐＨ１２，２、土ｔＪＨについてはｐＨ１１，５
、土壌ＣについてはｐＨ１０，１とした。この土壌Ａ、
Ｂ、Ｃを１０日間放置した後各々についてｐＨ値を測定
したところ、土壌ＡのｐＨ値は７、土壌ＢのｐＨ値は６
．８．土壌ＣのｐＨ値は７．３であった。また、前記と
同様にして各土壌について培養を行い、各々に含まれる
放線菌と糸状菌の割合を測定した。結果を第２表に示す
。Table 1: For soils A and B above, calcium hydroxide was sprayed, and for soil C, calcium oxide was sprayed. Soil A had a pH of 12.2, and soil tJH had a pH of 11.5.
, Soil C was set to pH 10.1. This soil A,
After leaving B and C for 10 days, we measured the pH value of each, and found that the pH value of soil A was 7, and the pH value of soil B was 6.
．． 8. The pH value of soil C was 7.3. In addition, each soil was cultured in the same manner as above, and the proportions of actinomycetes and filamentous fungi contained in each soil were measured. The results are shown in Table 2.
第２表
［発明の効果］
以上のように、本発明によれば、土壌中の放線菌と糸状
菌の割合を適正なバランスに調整することができ、この
生態系の乱れによる作物への悪影響を防止できるので、
作物の収穫量の増大を図ることができるものである。Table 2 [Effects of the Invention] As described above, according to the present invention, it is possible to adjust the ratio of actinomycetes and filamentous fungi in the soil to an appropriate balance, thereby reducing the adverse effects on crops caused by disturbance of this ecosystem. Because it can prevent
It is possible to increase the yield of crops.
Claims (1)
うアルカリ化剤を散布して放置期間を設けることを特徴
とする土壌改良方法。1) A soil improvement method characterized by spraying an alkalizing agent on the soil so that the pH of the soil immediately after spraying becomes 9 to 13, and then allowing it to stand for a period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61290534A JPS63146723A (en) | 1986-12-08 | 1986-12-08 | Soil conditioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61290534A JPS63146723A (en) | 1986-12-08 | 1986-12-08 | Soil conditioning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63146723A true JPS63146723A (en) | 1988-06-18 |
| JPH047646B2 JPH047646B2 (en) | 1992-02-12 |
Family
ID=17757269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61290534A Granted JPS63146723A (en) | 1986-12-08 | 1986-12-08 | Soil conditioning method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146723A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01277425A (en) * | 1988-04-28 | 1989-11-07 | Nisshoku Corp | Execution of bad soil |
| WO1996039840A3 (en) * | 1995-06-07 | 1997-01-30 | O Donnell Family Trust | Treatment of soil and plants with a composition containing bacillus laterosporus |
| WO2004056185A1 (en) * | 2002-12-19 | 2004-07-08 | Sargent, Karen | Controlling plant growth |
| JP2006067927A (en) * | 2004-09-03 | 2006-03-16 | Hoshizaki Electric Co Ltd | Method for improving soil |
-
1986
- 1986-12-08 JP JP61290534A patent/JPS63146723A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01277425A (en) * | 1988-04-28 | 1989-11-07 | Nisshoku Corp | Execution of bad soil |
| JPH0362372B2 (en) * | 1988-04-28 | 1991-09-25 | Nippon Shokusei Kk | |
| US5702701A (en) * | 1990-12-04 | 1997-12-30 | The O'donnell Family Investment Trust | Treatment of soil and plants with a composition containing Bacillus laterosporus |
| WO1996039840A3 (en) * | 1995-06-07 | 1997-01-30 | O Donnell Family Trust | Treatment of soil and plants with a composition containing bacillus laterosporus |
| WO2004056185A1 (en) * | 2002-12-19 | 2004-07-08 | Sargent, Karen | Controlling plant growth |
| JP2006067927A (en) * | 2004-09-03 | 2006-03-16 | Hoshizaki Electric Co Ltd | Method for improving soil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH047646B2 (en) | 1992-02-12 |
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