JPH01171425A - Soil disinfection method - Google Patents
Soil disinfection methodInfo
- Publication number
- JPH01171425A JPH01171425A JP32923487A JP32923487A JPH01171425A JP H01171425 A JPH01171425 A JP H01171425A JP 32923487 A JP32923487 A JP 32923487A JP 32923487 A JP32923487 A JP 32923487A JP H01171425 A JPH01171425 A JP H01171425A
- Authority
- JP
- Japan
- Prior art keywords
- soil
- chlorine dioxide
- dioxide gas
- sheet
- air
- 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.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 34
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 15
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 30
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 30
- 230000001954 sterilising effect Effects 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 8
- 239000007864 aqueous solution Substances 0.000 abstract description 7
- 241000894006 Bacteria Species 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 4
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 abstract description 4
- 229960002218 sodium chlorite Drugs 0.000 abstract description 4
- 238000005422 blasting Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 26
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000006227 byproduct Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 239000002362 mulch Substances 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 1
- 241000308375 Graminicola Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000011260 aqueous acid Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- LFHISGNCFUNFFM-UHFFFAOYSA-N chloropicrin Chemical compound [O-][N+](=O)C(Cl)(Cl)Cl LFHISGNCFUNFFM-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000006783 corn meal agar Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、細菌に汚染された土壌、特にハウス内で使用
した土壌の殺菌消毒法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for sterilizing soil contaminated with bacteria, particularly soil used in greenhouses.
ハウス内土壌は細菌が繁殖しやすく、そのまま使用を続
けると２作目からは減収が著しい。Bacteria breed easily in the soil in greenhouses, and if the soil is continued to be used as it is, the yield will drop significantly from the second crop onwards.
そこで、減収の予防と作業者の健康対策のため、次の作
付けに先立って土壌の殺菌を行う必要がある。Therefore, it is necessary to sterilize the soil before the next planting in order to prevent a decrease in yield and to protect the health of workers.
土壌殺菌法の一つに太陽熱による予防がある。One of the soil sterilization methods is prevention using solar heat.
これは、作物のない状態でハウス内土壌を耕しておき、
ハウスを密閉して放置するものである。This is done by cultivating the soil inside the greenhouse without crops.
The house is closed and left alone.
地表温度が６０℃に達した場合は、温度による殺菌が行
われる。しかしながら、この方法は東海近畿以南でない
と所要地表温度に到達するのが難しく、また殺菌可能な
範囲も地表近くに限定される。If the ground temperature reaches 60°C, thermal sterilization will be carried out. However, with this method, it is difficult to reach the required ground temperature unless the area is south of the Tokai-Kinki region, and the area that can be sterilized is limited to areas near the ground surface.
これに対し殺菌性薬剤で土壌を処理する方法がある。即
ち、臭化メチルやクロルピクリンによる方法があるが、
これらは強い毒性があり、作業時に作業者並びに付近住
民が薬害を受けないように注意を払わなければならない
ことは勿論であるが、約２週間待機した後、土壌を耕起
して残留薬品のガスを消散させてからでないと農作業が
行えないので大要不便である。さらにこれらの薬剤が河
川や地下水に流入することによる薬害の問題も発生する
上に、繰り返し使用することにより耐性菌の出現もみら
れるようになってきている。On the other hand, there is a method of treating the soil with fungicidal chemicals. That is, there are methods using methyl bromide and chloropicrin, but
These are highly toxic, and of course care must be taken to avoid chemical damage to workers and nearby residents during work, but after waiting for about two weeks, the soil must be tilled to remove any remaining chemicals. This is a major inconvenience because agricultural work cannot be done until the gas has dissipated. Furthermore, there is the problem of drug damage due to the inflow of these drugs into rivers and groundwater, and the emergence of resistant bacteria is also observed due to repeated use.
本発明者等は鋭意検討の結果、二酸化塩素ガスで土壌を
処理することにより、短時間の作業で確実に殺菌が行え
ることを認めた。As a result of intensive studies, the inventors of the present invention have found that by treating soil with chlorine dioxide gas, sterilization can be reliably performed in a short time.
即ち本発明は、土壌表面を非通気性シートで覆い、シー
トと土壌の間に二酸化塩素ガス含有空気を吹き込むこと
を特徴とする土壌殺菌法に関するものである。That is, the present invention relates to a soil sterilization method characterized by covering the soil surface with an air-impermeable sheet and blowing air containing chlorine dioxide gas between the sheet and the soil.
二酸化塩素は、水溶液或いはこれを担持させた粉体を用
いた収穫農作物の殺菌やハウス内作物の除去、殺菌を行
うことが知られている（特開昭６０〜５８９０４号公報
、特開昭６２−４０５号公報）が、土壌を処理すること
については未だ報告されていない。It is known that chlorine dioxide can be used to sterilize harvested crops and to remove and sterilize crops in greenhouses using an aqueous solution or a powder supported with chlorine dioxide (Japanese Unexamined Patent Publication No. 60-58904, No. 62 -405 Publication), but there has been no report yet on treating soil.
二酸化塩素ガスを用いた場合の特徴は、非常に速効性で
あり、速やかに殺菌を行った後、二酸化塩素ガスは分解
して無害の塩化ナトリウム等に変化することである。The feature of using chlorine dioxide gas is that it is extremely fast-acting, and after rapid sterilization, chlorine dioxide gas decomposes and changes into harmless sodium chloride and the like.
二酸化塩素ガスは種々の方法で製造することができる。Chlorine dioxide gas can be produced in various ways.
即ち、塩素酸塩又は亜塩素酸塩の水溶液に酸、酸化剤、
或いは還元剤等を作用させると二酸化塩素ガスが発生す
る。反応試薬、反応条件によっては塩素、塩化水素等を
副生ずる場合もあるが、条件を選択することによって略
純粋に二酸化塩素ガスだけを発生させることが可能であ
る。That is, an acid, an oxidizing agent,
Alternatively, when a reducing agent or the like is applied, chlorine dioxide gas is generated. Depending on the reaction reagents and reaction conditions, chlorine, hydrogen chloride, etc. may be produced as by-products, but by selecting the conditions it is possible to generate almost pure chlorine dioxide gas.
例えば、亜塩素酸ナトリウムに対して、水溶液中で酸を
当量以下添加する方法で容易に二酸化塩素ガスを得るこ
とができる。酸としては硫酸、リン酸、又はクエン酸が
適当である。この反応を水溶液中で行い、発生する二酸
化塩素ガスを空気で希釈すれば二酸化塩素ガス含有空気
が得られる。反応試薬及び反応条件によっては、塩素、
塩化水素等を副生ずる場合もあるが、上記の方法によれ
ば副生物を抑え二酸化塩素ガスのみを略定量的に発生さ
せることが可能である。For example, chlorine dioxide gas can be easily obtained by adding an equivalent or less amount of acid to sodium chlorite in an aqueous solution. Suitable acids are sulfuric acid, phosphoric acid, or citric acid. If this reaction is carried out in an aqueous solution and the generated chlorine dioxide gas is diluted with air, air containing chlorine dioxide gas can be obtained. Depending on the reaction reagent and reaction conditions, chlorine,
Although hydrogen chloride and the like may be produced as by-products, the above method makes it possible to suppress by-products and generate only chlorine dioxide gas substantially quantitatively.
亜塩素酸す） ＋Ｊウムの水溶液と酸の水溶液を一定速
度でそれぞれ反応フラスコに仕込むことにより、略一定
量の二酸化塩素ガスを発生させることができるので、こ
れを所定の流量の空気で希釈して使用する。By charging an aqueous solution of +Jum and an aqueous acid solution into a reaction flask at a constant rate, it is possible to generate an approximately constant amount of chlorine dioxide gas, which is then diluted with air at a predetermined flow rate. and use it.
発生する二酸化塩素ガスの定量法としては、北用式検知
管を用いて測定する方法と、発生ガスを蒸溜水に吸収さ
せ、ＵＶ分光光度計で２５８ｎｍの吸収強度から求める
方法があり、両者はよく一致する。There are two methods for quantifying the generated chlorine dioxide gas: one is to measure it using a kita-type detection tube, and the other is to absorb the generated gas in distilled water and determine it from the absorption intensity at 258 nm using a UV spectrophotometer. Matches well.
二酸化塩素ガス処理に先立って、土壌は深さ約２０ｃｍ
を耕起しておくことが望ましい。Prior to chlorine dioxide gas treatment, the soil was reduced to a depth of approximately 20 cm.
It is desirable to cultivate the area.
土壌表面を覆うための非通気性シートは、通常、農業に
使用するマルチングシートの孔のないものがよい。例え
ば厚み０．０２ｍｍ〜０．３ｍｍのポリエチレンシート
、ポリ塩化ビニルシートなどを使用することができる。The non-porous sheet for covering the soil surface is normally a mulching sheet used in agriculture, but without holes. For example, a polyethylene sheet, a polyvinyl chloride sheet, etc. having a thickness of 0.02 mm to 0.3 mm can be used.
二酸化塩素ガス含有空気中の二酸化塩素ガス濃度は１Ｑ
ｐｐｂ 〜１１００ｐｐが適当である。１０ｐｐｂより
低濃度では効果が低く、１０（ｌｐｐｍより濃いと無駄
に消費される率が高くなり不経済であると共に、作業者
等が呼吸すると危険な濃度であるので取り扱いに注意す
る必要があり、実際的でなくなる。上記ガス単位時間あ
たりの吹込量は１１／分〜１００ ｎ ／分が適当であ
る。ＬＡ／分より低いと土壌表面の拡散が不十分になり
、１００１／分より多すぎると覆ったシートの隙間から
ガスが漏れるおそれがあり、この場合も危険である。全
吹込量としてｍ２当たり２０〜３００β程度が適当であ
るので、処理時間としては３分〜２０分で作業は完了す
る。作業完了は約２４時間シートをかけたまま放置し、
その後シート覆いを除くと殺菌は完了しており、且つ二
酸化塩素も殆ど残留していないので、直ちに次期作付け
のだめの農作業を開始することができる。The concentration of chlorine dioxide gas in air containing chlorine dioxide gas is 1Q
ppb to 1100 pp is suitable. Concentrations lower than 10 ppb are less effective, and concentrations higher than 10 lppm are uneconomical as the rate of wasted consumption increases, and the concentration is dangerous if breathed by workers, so care must be taken when handling. It becomes impractical.The appropriate gas injection rate per unit time is 11/min to 100 n/min.If it is lower than LA/min, the diffusion on the soil surface will be insufficient, and if it is more than 1001/min. There is a risk of gas leaking from the gaps between the covered sheets, which is also dangerous.The appropriate total blowing amount is about 20 to 300 β per m2, so the process can be completed in 3 to 20 minutes. .To complete the work, leave the sheet on for about 24 hours.
When the sheet cover is then removed, sterilization has been completed and there is almost no chlorine dioxide left, so agricultural work for the next crop can be started immediately.
本発明の土壌処理法は処理に要する薬剤費用が低度であ
ると共に、処理時間が短く、処理後のガス抜き作業など
も不必要、且つ薬品の蓄積、地下水、河川の汚染などの
影響もなく、極めて合理的な方法である。また、本処理
によって同時に土壌中の有害、上類なども駆除できる。The soil treatment method of the present invention requires low chemical costs for treatment, has a short treatment time, does not require degassing work after treatment, and has no effects such as accumulation of chemicals or contamination of groundwater or rivers. , is an extremely rational method. In addition, this treatment can simultaneously exterminate harmful substances in the soil.
以下に実施例を挙げて本発明を説明するが、本発明はこ
れらの実施例に限定されるものではない。The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples.
実施例１
１．５ｍ２の畑地を深さ２０ｃｍ耕した後、厚さ０４０
２ｍｍの黒マルチフィルムで覆った。Example 1 After plowing a 1.5 m2 field to a depth of 20 cm, the thickness was 040 cm.
Covered with 2mm black mulch film.
三日丸底フラスコの第１の口に２．０２％亜塩素酸ナト
リウム水溶液及び０．００８％硫酸水溶液を各々２ｒｄ
！／分で仕込み、第２の口に空気を２１／分で仕込んだ
。空気仕込口は三ロ丸底フラスコ内の液面下になるよう
調整した。第３の口部より二酸化塩素ガス含有空気を塩
ビチューブにより取り出した。本条件で二酸化塩素ガス
濃度１０ｐｐｍの空気を２β／分で１時間黒マルチフィ
ルムの下に敷き込んだ塩ビチューブから吹き込んだ。Add 2.02% sodium chlorite aqueous solution and 0.008% sulfuric acid aqueous solution to the first neck of the Mikka round bottom flask.
! /min, and air was charged into the second port at 21/min. The air inlet was adjusted so that it was below the liquid level in the three-way round bottom flask. Air containing chlorine dioxide gas was taken out from the third opening using a PVC tube. Under these conditions, air with a chlorine dioxide gas concentration of 10 ppm was blown at 2β/min for 1 hour through a PVC tube placed under the black mulch film.
翌日、凡用式検知管をシート内に挿入し、地表近くの残
留ガスの検出を行ったが、検出限界（０，１ｐｐｍ）以
下であった。シートを除去し、地表から１０ｃｍ部の土
壌１ｇを滅菌生理食塩水５０ｍ１ｉ！で３分振盪した後
、５００ ｐＨを採取し、Ｂａｃｔｏ−ＣｏｒｎＭｅａ
ｌ Ａｇａｒ培地上に接種し、２２℃で４日間静置培養
したが、菌コロニーの生成は認められなかった。The next day, a general-purpose detector tube was inserted into the sheet to detect residual gas near the surface, but it was below the detection limit (0.1 ppm). Remove the sheet and add 1 g of soil 10 cm from the ground surface to 50 m1 of sterile physiological saline! After shaking for 3 minutes at
The cells were inoculated onto 1 Agar medium and cultured stationary at 22° C. for 4 days, but no bacterial colonies were observed.
−ブランクとして上記と同じ土質の畑地で二酸化塩素ガ
ス含有空気での処理を行わなかった部分の土壌でも同様
の検定を行ったところ、４日後１０７個／ｇ（土）の菌
が認められた。- As a blank, a similar assay was performed on soil from a field with the same soil quality as above that was not treated with air containing chlorine dioxide gas, and 107 bacteria/g (soil) were observed after 4 days.
く参考実験例〉
Ｂａｃｔｏ−Ｃｏｒｎ Ｍｅａｌ Ａｇａｒ 培地にＰ
ｙｔｈｉｕｍ ｇｒａｍｉ−ｎｉｃｏｌａ及び５ｏｌｅ
ｒｏｔｉｎｉａ ｓｃｌｅｒｏｔｉｏｒｕｍの胞子を接
種し、２２℃下菌糸をｌ Ｑｍｎ＋まで成長させたベト
リ皿を６．５ｊ！の通気孔、排気孔を有するデシケータ
−に入れた。Reference experiment example> Add P to Bacto-Corn Meal Agar medium.
Ythium grami-nicola and 5ole
6.5j! Vetri dishes inoculated with rotinia sclerotiorum spores and grown to 1 Qmn+ at 22°C! The sample was placed in a desiccator with ventilation holes and exhaust holes.
一方、三ロフラスコに０．０１％亜塩素酸ナトリウムを
０．５ｍｌ！／分、０．００４％硫酸を０．５ｍｆ／分
の割合で仕込み、さらにその上に空気を５００ｒｎＩｌ
／分で流入させ三ロフラスコ出口より４ｐｐｍの二酸化
塩素ガスを含む空気を５００−／分て導き上記デシケー
タ−中に導入し通過させた。Meanwhile, add 0.5 ml of 0.01% sodium chlorite to the three-loaf flask! 0.004% sulfuric acid was charged at a rate of 0.5 mf/min, and then air was added at a rate of 500 rnIl.
Air containing 4 ppm of chlorine dioxide gas was introduced from the outlet of the three-loaf flask at a rate of 500 min, and was introduced into the desiccator and passed through.
二酸化塩素ガス含有空気の通過は２４時間行い、シャー
レを取り出し２２℃の保温庫に入れ、さらに４日間保持
した。菌糸は依然ＩＱｍｍで成長が認められなかった。The air containing chlorine dioxide gas was allowed to pass through for 24 hours, and then the Petri dish was taken out and placed in a 22°C heat-insulating chamber, where it was kept for an additional 4 days. No growth of hyphae was still observed at IQmm.
一方、上記通気処理を行わないまま保持させたベトリ皿
では菌糸は４３ｍｍまで成長した。On the other hand, mycelium grew to 43 mm in the vetri dish that was kept without performing the aeration treatment.
出願人代理人 古 谷 馨Applicant's agent Kaoru Furutani
Claims (1)
間に二酸化塩素ガス含有空気を吹き込むことを特徴とす
る土壌殺菌法。 ２ 二酸化塩素ガス含有空気の二酸化塩素ガス濃度が１
０ｐｐｂ〜１００ｐｐｍであり、吹込量がｍ＾２当たり
２０〜３００ｌであることを特徴とする特許請求の範囲
第１項記載の土壌殺菌法。[Claims] 1. A soil sterilization method characterized by covering the soil surface with an air-impermeable sheet and blowing air containing chlorine dioxide gas between the sheet and the soil. 2 The chlorine dioxide gas concentration of the air containing chlorine dioxide gas is 1
2. The soil sterilization method according to claim 1, wherein the soil sterilization method is 0 ppb to 100 ppm and the blown amount is 20 to 300 liters per m^2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32923487A JPH01171425A (en) | 1987-12-25 | 1987-12-25 | Soil disinfection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32923487A JPH01171425A (en) | 1987-12-25 | 1987-12-25 | Soil disinfection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171425A true JPH01171425A (en) | 1989-07-06 |
Family
ID=18219149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32923487A Pending JPH01171425A (en) | 1987-12-25 | 1987-12-25 | Soil disinfection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171425A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990014004A1 (en) * | 1989-05-16 | 1990-11-29 | Chemical Enterprises (Aust) Pty. Limited | Pesticidal blanket |
| US5324477A (en) * | 1989-08-30 | 1994-06-28 | Henkel Komnmanditgesellschaft Auf Aktien | Process for disinfecting hard surfaces with chlorine dioxide |
| JPH07179315A (en) * | 1993-12-21 | 1995-07-18 | Minoru Toyoshima | Soil-activating microbicide |
| WO2001058265A2 (en) * | 2000-02-10 | 2001-08-16 | Caffaro S.P.A. | Method for controlling parasites present in soils |
-
1987
- 1987-12-25 JP JP32923487A patent/JPH01171425A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990014004A1 (en) * | 1989-05-16 | 1990-11-29 | Chemical Enterprises (Aust) Pty. Limited | Pesticidal blanket |
| US5324477A (en) * | 1989-08-30 | 1994-06-28 | Henkel Komnmanditgesellschaft Auf Aktien | Process for disinfecting hard surfaces with chlorine dioxide |
| JPH07179315A (en) * | 1993-12-21 | 1995-07-18 | Minoru Toyoshima | Soil-activating microbicide |
| WO2001058265A2 (en) * | 2000-02-10 | 2001-08-16 | Caffaro S.P.A. | Method for controlling parasites present in soils |
| WO2001058265A3 (en) * | 2000-02-10 | 2002-03-07 | Caffaro Spa Ind Chim | Method for controlling parasites present in soils |
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