JPH0431382A - Utilizing agent for phosphoric acid compound immobilized in soil - Google Patents
Utilizing agent for phosphoric acid compound immobilized in soilInfo
- Publication number
- JPH0431382A JPH0431382A JP2134576A JP13457690A JPH0431382A JP H0431382 A JPH0431382 A JP H0431382A JP 2134576 A JP2134576 A JP 2134576A JP 13457690 A JP13457690 A JP 13457690A JP H0431382 A JPH0431382 A JP H0431382A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- soil
- phosphoric acid
- water
- salts
- 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 26
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract description 39
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract description 23
- -1 phosphoric acid compound Chemical class 0.000 title abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 11
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000004480 active ingredient Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 150000007513 acids Chemical class 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 10
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims 1
- 239000003337 fertilizer Substances 0.000 abstract description 14
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract description 12
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 abstract description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract description 6
- 235000019260 propionic acid Nutrition 0.000 abstract description 6
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 abstract description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007864 aqueous solution Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 abstract description 4
- 150000003863 ammonium salts Chemical class 0.000 abstract description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 abstract description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 abstract description 2
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 abstract description 2
- 235000015165 citric acid Nutrition 0.000 abstract description 2
- 239000000174 gluconic acid Substances 0.000 abstract description 2
- 235000012208 gluconic acid Nutrition 0.000 abstract description 2
- 239000004021 humic acid Substances 0.000 abstract description 2
- 235000006408 oxalic acid Nutrition 0.000 abstract description 2
- 159000000001 potassium salts Chemical class 0.000 abstract description 2
- 159000000000 sodium salts Chemical class 0.000 abstract description 2
- 239000011975 tartaric acid Substances 0.000 abstract description 2
- 235000002906 tartaric acid Nutrition 0.000 abstract description 2
- 230000010736 Chelating Activity Effects 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 4
- 150000003016 phosphoric acids Chemical class 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000007922 dissolution test Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 150000003018 phosphorus compounds Chemical class 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000004720 fertilization Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WDJHALXBUFZDSR-UHFFFAOYSA-N acetoacetic acid Chemical compound CC(=O)CC(O)=O WDJHALXBUFZDSR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は土壌に存在する固定化されたリン酸を水溶性リ
ン酸として活用する活用剤に関するもので、詳しくは、
土壌中に存在するリン成分を有効に肥効成分として活用
し、リン酸の吸収効果を高めることにより植物の生長を
促進する方法に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an agent for utilizing immobilized phosphoric acid present in soil as water-soluble phosphoric acid.
The present invention relates to a method for promoting plant growth by effectively utilizing phosphorus components present in soil as fertilizer components and increasing the absorption effect of phosphoric acid.
［従来技術とその問題点］
植物の成長にとってチッソ、リン酸、カリは必要不可欠
なものであり、これら栄養素の供給は一般的に化学肥料
によって行われている。、特に農作物の場合、１シーズ
ンのうちでも元肥及び追肥と数回に亘る施肥が行われ、
そして、この施肥は毎年繰り返される。従って、単位面
積当りの農地には極めて多量の肥料が投入されている。[Prior art and its problems] Nitrogen, phosphoric acid, and potassium are essential for plant growth, and these nutrients are generally supplied by chemical fertilizers. In particular, in the case of agricultural crops, fertilization is carried out several times during one season, including base fertilizer and top dressing.
This fertilization is then repeated every year. Therefore, an extremely large amount of fertilizer is applied to farmland per unit area.
ところが、農地に施用された肥れは全てが農作物の栄養
源として吸収される訳ではないので、利用されないまま
土壌中に残留したり、また、流亡するものも相当にある
。例えば、土壌中に残留する場合でも、肥効成分が植物
に吸収可能な状態で存在していれば、いずれ栄養源とな
り得るが、長時間、肥効成分か土壌中に保持された場合
には、その形態が変化する。例えば、チッソ成分はアン
モニア態として吸収されるか、土壌中において次第に酸
化され硝酸態チッソに変化する。そして、この形態で流
亡するか、又は流亡しない場合には、時として土壌の酸
性化障害を招く。一方、リン酸成分は土壌中において多
量に存在する鉄、アルミニウム、カルシウムなどの金属
成分と結合し、難溶性リン酸化合物を生成する。ここで
生成した難溶性リン酸化合物は農作物に吸収されず、そ
のまま土壌中に残留することとなる。従って、農地には
不溶化し土壌中に固定化されたリン酸成分が相当量存在
しているのである。However, not all of the fertilizer applied to farmland is absorbed as a nutrient source for crops, so a considerable amount remains unused in the soil or is washed away. For example, even if fertilizer ingredients remain in the soil, if they are present in a state that can be absorbed by plants, they can eventually become a source of nutrients, but if fertilizer ingredients are retained in the soil for a long time, , its form changes. For example, nitrogen is absorbed in the form of ammonia, or gradually oxidized in the soil and converted to nitrogen in the form of nitrate. If the soil is washed away in this form, or if it is not washed away, it sometimes causes soil acidification problems. On the other hand, phosphoric acid components combine with metal components such as iron, aluminum, and calcium, which are present in large amounts in soil, to produce sparingly soluble phosphoric acid compounds. The poorly soluble phosphoric acid compounds produced here are not absorbed by agricultural crops and remain as they are in the soil. Therefore, a considerable amount of phosphoric acid components that have been insolubilized and fixed in the soil are present in farmland.
し発明の課題と解決手段〕
本発明者は上記実情に鑑み、土壌中に存在する難溶性リ
ン酸成分を肥効成分として有効に活用することかできな
いかと考え鋭意検討した結果、土壌中にある特定の化合
物を施用することにより、リン酸成分が植物に吸収され
得る水溶性リン酸に変化し、植物の成長が促進されるこ
とを見い出し本発明を完成するに至った。[Problems to be solved by the invention and means for solving the problem] In view of the above-mentioned circumstances, the inventors of the present invention have considered whether it is possible to effectively utilize the sparingly soluble phosphoric acid component present in soil as a fertilizing ingredient, and as a result of intensive study, We have completed the present invention by discovering that by applying a specific compound, the phosphoric acid component is changed to water-soluble phosphoric acid that can be absorbed by plants, promoting the growth of plants.
すなわち、本発明の要旨は、水溶性のポリカルボン酸並
びにこれらの塩の内キレート作用のあるものから選ばれ
た少なくとも１種の又は２種以上の混合物を有効成分と
する土壌に固定化されたリン酸化合物の活用剤に存する
。That is, the gist of the present invention is to provide a water-soluble polycarboxylic acid and at least one kind or a mixture of two or more kinds selected from among these salts having a chelating action as an active ingredient, which is immobilized in soil. It is an agent for utilizing phosphoric acid compounds.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明においては、水溶性のポリカルボン酸並びにこれ
らの塩の内キレート作用のあるものを土壌中に施用する
ことにより、土壌中に存在する難溶性リン酸化合物を植
物に吸収可能な水溶性リン酸に変化させようとするもの
である。In the present invention, by applying water-soluble polycarboxylic acids and salts thereof that have a chelating effect to the soil, hardly soluble phosphoric acid compounds present in the soil can be converted into water-soluble phosphorus that can be absorbed by plants. It is intended to be converted into an acid.
要するに、水溶性のポリカルボン酸並びにこれらの塩の
うち■キレート作用のあるものは、難溶性リン酸化合物
中の金属をキレート化し、その結果、難溶性リン酸化合
物を水溶性リン酸に変化させる作用がある。−使用でき
る具体例としては、例えばクエン酸、グルコン酸、酒石
酸、蓚酸、エチレンジアミン四酢酸（ＥＤＡＴ） 、ニ
トリロ三酢酸（ＮＴＡ） 、ウラミルニ酢酸（ＶＤＡ）
、フミン酸、プロピオン酸等を挙げることができる。In short, among water-soluble polycarboxylic acids and their salts, those with a chelating effect chelate the metal in the poorly soluble phosphoric acid compound, and as a result, change the poorly soluble phosphoric acid compound to water-soluble phosphoric acid. It has an effect. - Specific examples that can be used include citric acid, gluconic acid, tartaric acid, oxalic acid, ethylenediaminetetraacetic acid (EDAT), nitrilotriacetic acid (NTA), uramyl diacetic acid (VDA)
, humic acid, propionic acid and the like.
そして、特にプロピオン酸を用いた場合には、難溶性リ
ン酸化合物の溶解作用があるのみならずプロピオン酸菌
の増殖効果もあると推定され、−段と優れた効果が発揮
されるので好ましい。プロピオン酸又はクエン酸を多量
に施用すると土壌が酸性化し植物の根に影響をあたえる
などの弊害が発生することがあるので、通常、アンモニ
ウム塩、カリウム塩、ナトリウム塩などが挙げられ、−
船釣にアンモニウム塩が好ましい。In particular, when propionic acid is used, it is estimated that it not only has the effect of dissolving the poorly soluble phosphoric acid compound but also has the effect of propionic acid bacteria growing, and is therefore preferable because it exhibits an even more excellent effect. Applying large amounts of propionic acid or citric acid can cause harmful effects such as acidifying the soil and affecting plant roots, so ammonium salts, potassium salts, sodium salts, etc.
Ammonium salts are preferred for boat fishing.
上述のような本発明の土壌改良剤は、通常、水溶液とし
て土壌に施用するが、その濃度としては、例えば、０．
０１〜５重量％、好ましくは０．０５〜１重量％である
。また、この水溶液のｐＨは、通常、５〜７程度に調整
することが望ましい。本発明においては、固定リン酸活
用剤として２種の化合物を併用することが特に効果的で
あり、例えば、プロピオン酸く塩）又はクエン酸（塩）
とＥＤＴＡの併用などが好ましい。なお、本発明の活用
剤と種々の肥料成分を混合して使用することもできる。The soil conditioner of the present invention as described above is usually applied to soil as an aqueous solution, and its concentration may be, for example, 0.
01 to 5% by weight, preferably 0.05 to 1% by weight. Further, it is desirable that the pH of this aqueous solution is usually adjusted to about 5 to 7. In the present invention, it is particularly effective to use two types of compounds together as fixed phosphoric acid utilization agents, for example, propionic acid (salt) or citric acid (salt).
A combination of EDTA and EDTA is preferred. In addition, it is also possible to use a mixture of the conjugate of the present invention and various fertilizer components.
又本則を水溶液として土壌に施用した場合は、速効的で
はあるが、流口するなどのおそれがあるために担体に吸
着させて持続性を考慮し施用することが好ましい。In addition, when the main rule is applied to soil as an aqueous solution, it is fast-acting, but since there is a risk of run-off, it is preferable to adsorb it on a carrier and apply it in consideration of sustainability.
本発明の活用剤の施用量は特に限定されるものではない
が、通常、農地１尻当り、有効成分として１００〜１ｏ
ｏｏｙ、好ましくは３００〜５００ｇである。施用量か
あまり少量の場合、土壌中の難溶性リン化合物を十分に
水溶化することがてきず、逆にあまり多量でも、害はな
いが効果にも変りはないので経済的でない。The application amount of the active ingredient of the present invention is not particularly limited, but usually 10 to 1 oz of the active ingredient per farmland.
ooy, preferably 300 to 500 g. If the application amount is too small, the hardly soluble phosphorus compounds in the soil cannot be sufficiently water-solubilized, and on the other hand, if the application amount is too large, there will be no harm, but the effect will remain the same, making it uneconomical.
本発明で対象とする土壌は、肥料としてリン酸の施用さ
れている農地全般かあげられる。The soil targeted by the present invention includes all farmland to which phosphoric acid is applied as fertilizer.
Ｆ実施例］
次に、本発明を実施例によって更に具体的に説明するが
、本発明はその要旨を超えない限り、以下の実施例の記
述に制約されるものではない。Example F] Next, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to the description of the Examples below unless it exceeds the gist thereof.
溶解試験例１
煮沸水道水中にリン酸アルミニウムを１％の割合で加え
、そこに本発明の各種活用剤を０．０１％と０．１％の
濃度で添加し、４日間放置し、その後のリン酸溶出量を
測定した。その結果を第１表に示す。いずれも無添加に
比ベリン酸が多く溶出した。Dissolution test example 1 Aluminum phosphate was added to boiled tap water at a rate of 1%, various conjugates of the present invention were added thereto at concentrations of 0.01% and 0.1%, and the mixture was left for 4 days. The amount of phosphoric acid eluted was measured. The results are shown in Table 1. In both cases, a large amount of beric acid was eluted even when no additive was added.
第１表
第２表
溶解試験例２
煮沸水道水中にリンＭ第２鉄を１％の３１７合で加え、
そこに本発明の各種活用剤を０．０１％と０゜１％の濃
度で添加し、４日間放置し、その復のリン酸溶出量を測
定した。その結果を第２表に示す。Table 1 Table 2 Dissolution test example 2 Ferric phosphorus M was added to boiled tap water at 317 g of 1%,
Various conjugates of the present invention were added thereto at concentrations of 0.01% and 0.1%, left for 4 days, and the amount of phosphoric acid eluted was measured. The results are shown in Table 2.
いずれも無添加に比ベリン酸が多く溶出した。In both cases, a large amount of beric acid was eluted even when no additive was added.
溶解試験例３
煮沸水道水中にリン酸カルシウムを１％のｇｔＪ合で加
え、そこに本発明の各種活用剤を０．０１％と０．１％
の濃度で添加し、４日間放置し、その後のリン酸溶出量
を測定した。その結果を第３表に示す。いずれも無添加
に比ベリン酸が多く溶出した。Dissolution test example 3 Calcium phosphate was added to boiled tap water at a gtJ concentration of 1%, and various conjugates of the present invention were added at 0.01% and 0.1%.
The amount of phosphoric acid eluted was measured after leaving it for 4 days. The results are shown in Table 3. In both cases, a large amount of beric acid was eluted even when no additive was added.
第３表 て植物を良好に育成することができる。Table 3 This allows plants to grow well.
従って、本発明では土壌中の難溶性リン化合物を肥効成
分として、再び有効に活用することかできるのみならず
施されたリン酸肥料の固定化を防ぐため、本発明は単な
る肥料のコスｉ〜ダウンのみならず、資源の有効利用が
でき、農業及び産業の両面において多大な意義を有する
。Therefore, in the present invention, the hardly soluble phosphorus compound in the soil can be effectively used again as a fertilizer ingredient, and in order to prevent the applied phosphorus fertilizer from being immobilized, the present invention is a simple fertilizer cost effective solution. - Not only down, but also resources can be used effectively, and it has great significance in both agriculture and industry.
代理人 弁理士 足 立 勉
［発明の効果］
本発明ではリン酸系又はリン女系肥料の施肥によって、
長年の闇にＭ溶性リン化合物となって土壌中に固定され
ているリン成分を植物か吸収可能な水溶性リン化合物に
変化させることができる。Agent Patent Attorney Tsutomu Adachi [Effects of the Invention] In the present invention, by applying phosphoric acid-based or phosphorus-based fertilizer,
Phosphorus components that have been fixed in the soil as M-soluble phosphorus compounds over many years can be changed into water-soluble phosphorus compounds that can be absorbed by plants.
そして、この水溶化したリン化合物の働きによつ手続補
正書
手続補正書And, due to the action of this water-solubilized phosphorus compound, the procedural amendment
Claims (1)
レート作用のあるものから選ばれた少なくとも１種又は
２種以上の混合物を有効成分とすることを特徴とする土
壌に固定化されたリン酸化合物の活用剤。(1) Phosphorous immobilized in soil, characterized by containing as an active ingredient at least one or a mixture of two or more selected from water-soluble polycarboxylic acids and salts of these that have a chelating effect. Utilization agent for acid compounds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134576A JPH0431382A (en) | 1990-05-24 | 1990-05-24 | Utilizing agent for phosphoric acid compound immobilized in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2134576A JPH0431382A (en) | 1990-05-24 | 1990-05-24 | Utilizing agent for phosphoric acid compound immobilized in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431382A true JPH0431382A (en) | 1992-02-03 |
Family
ID=15131586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2134576A Pending JPH0431382A (en) | 1990-05-24 | 1990-05-24 | Utilizing agent for phosphoric acid compound immobilized in soil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431382A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7829500B2 (en) | 2000-04-28 | 2010-11-09 | Kao Corporation | Plant-activating agent |
| CN102640647A (en) * | 2012-05-04 | 2012-08-22 | 天津师范大学 | Method adopting ammonia carboxy chelating agent and festuca arundinacea to restore compost matrix heavy metals |
| CN103964945A (en) * | 2014-04-19 | 2014-08-06 | 中农舜天生态肥业有限公司 | Method for preparing water-soluble fertilizer containing humic acid |
| CN104109052A (en) * | 2014-07-08 | 2014-10-22 | 深圳市芭田生态工程股份有限公司 | High-activity humic acid microelement fertilizer and preparation method thereof |
| CN109265286A (en) * | 2018-09-29 | 2019-01-25 | 中国农业大学 | A kind of bio-stimulant and its preparation method and application for improving soil phophorus and utilizing |
| CN110511073A (en) * | 2019-09-11 | 2019-11-29 | 东北农业大学 | A kind of method of indissoluble phosphor effectuation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5338222A (en) * | 1976-09-20 | 1978-04-08 | Sanyo Electric Co Ltd | Braun tube for projection television |
-
1990
- 1990-05-24 JP JP2134576A patent/JPH0431382A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5338222A (en) * | 1976-09-20 | 1978-04-08 | Sanyo Electric Co Ltd | Braun tube for projection television |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7829500B2 (en) | 2000-04-28 | 2010-11-09 | Kao Corporation | Plant-activating agent |
| CN102640647A (en) * | 2012-05-04 | 2012-08-22 | 天津师范大学 | Method adopting ammonia carboxy chelating agent and festuca arundinacea to restore compost matrix heavy metals |
| CN103964945A (en) * | 2014-04-19 | 2014-08-06 | 中农舜天生态肥业有限公司 | Method for preparing water-soluble fertilizer containing humic acid |
| CN104109052A (en) * | 2014-07-08 | 2014-10-22 | 深圳市芭田生态工程股份有限公司 | High-activity humic acid microelement fertilizer and preparation method thereof |
| CN109265286A (en) * | 2018-09-29 | 2019-01-25 | 中国农业大学 | A kind of bio-stimulant and its preparation method and application for improving soil phophorus and utilizing |
| CN109265286B (en) * | 2018-09-29 | 2021-09-10 | 中国农业大学 | Biological activator for improving soil phosphorus utilization and preparation method and application thereof |
| CN110511073A (en) * | 2019-09-11 | 2019-11-29 | 东北农业大学 | A kind of method of indissoluble phosphor effectuation |
| CN110511073B (en) * | 2019-09-11 | 2021-11-30 | 东北农业大学 | Method for effectively dissolving insoluble phosphorus |
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