JPS6231037B2 - - Google Patents
Info
- Publication number
- JPS6231037B2 JPS6231037B2 JP55131404A JP13140480A JPS6231037B2 JP S6231037 B2 JPS6231037 B2 JP S6231037B2 JP 55131404 A JP55131404 A JP 55131404A JP 13140480 A JP13140480 A JP 13140480A JP S6231037 B2 JPS6231037 B2 JP S6231037B2
- Authority
- JP
- Japan
- Prior art keywords
- soil
- zeolite
- useful microorganisms
- useful
- water
- 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.)
- Expired
Links
- 239000002689 soil Substances 0.000 claims description 20
- 229910021536 Zeolite Inorganic materials 0.000 claims description 17
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 17
- 239000010457 zeolite Substances 0.000 claims description 17
- 235000015097 nutrients Nutrition 0.000 claims description 14
- 244000005700 microbiome Species 0.000 claims description 12
- 239000003516 soil conditioner Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 5
- 238000000855 fermentation Methods 0.000 claims description 3
- 230000004151 fermentation Effects 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000012258 culturing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 239000003337 fertilizer Substances 0.000 description 9
- 239000003864 humus Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 3
- 210000003608 fece Anatomy 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 239000010871 livestock manure Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000002374 bone meal Substances 0.000 description 2
- 229940036811 bone meal Drugs 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 240000008067 Cucumis sativus Species 0.000 description 1
- 235000009849 Cucumis sativus Nutrition 0.000 description 1
- 235000019733 Fish meal Nutrition 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000004467 fishmeal Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 230000002062 proliferating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Description
本発明は、ゼオライトを使用した肥料効果を有
する土壌改良剤に関するものである。
ゼオライトは、イオン交換能、ガス吸着性等に
優れ、しかも多くの有用ミネラルを含む交換性塩
基含量が高いため、有用な土壌改良剤の一つであ
ることが知られている。そして、近年、化学肥料
に対して所謂有機肥料が再認識されてきているこ
とから、ゼオライトと有機肥料とを混在させた肥
料効果を有する土壌改良剤が提案されている。し
かしながら、従来、この種土壌改良剤は、単にゼ
オライトに鶏糞等の有機質栄養源を混在せしめた
にすぎないものであつたため、有機質栄養源が土
壌中の有用微生物の作用で腐植し、有用肥料とな
るまでに時間がかかつてしまい、このため、今日
の様に極めて集約された農業事情からは未だ充分
な肥料効果を有する土壌改良剤とは言えないのが
実情であつた。
そこで、ゼオライトに有機質栄養源を混在せし
めたものに有用微生物を接種し、これを施肥した
土壌において有機質栄養源の腐植を促進せしめる
ようにすることが試みられている。このものは、
接種有用微生物による腐植促進効果はそれなりに
認められるが、施肥した土壌中で有機質栄養源を
腐植せしめようとするものであり依然として即効
性に劣り、しかもこの腐植時間が気温によつて左
右され易く四季を通じて安定した土壌改良剤とし
て使用することができなかつた。
本発明は、上記の如き実状に鑑みこれらの欠点
を一掃すべく創案されたものであつて、ゼオライ
トに有機質栄養源を混在せしめたものでありなが
ら、即効性に優れ、しかも四季を通じて安定であ
つて、これを土壌に混入することにより、土壌の
活性度を高め、作物の根圏環境を良好ならしめ
て、高収穫を得ることができる土壌改良剤を提供
することを目的としたものである。
本発明を以下説明すると、本発明の土壌改良剤
は、イオン交換能、ガス吸着性、交換性塩基含量
等が高い大谷石等のゼオライトの粉粒を培養基体
とし、これに炭素源に富む糖蜜、米糖、窒素源に
富む豆清、有用ミネラル源に富む骨粉、鶏糞等の
易分解性の有機質栄養源を付加し、さらにこれに
純粋培養した繊維素分解力、有機酸成産力に富む
糸状菌類、酵母菌類、細菌類等の有用微生物の菌
体あるいは胞子等を適宜に選択・混合して接種培
養し、また水分を適宜量加え、これを加熱室等の
適当な加熱手段下で適温で加熱処理することによ
つて醗酵腐熱させて得ることを特徴とするもので
ある。
本発明に用いるゼオライトは、天然のままでも
よいが、これを高温焼成して得た焼成ゼオライト
とすれば、ゼオライト自身の吸着能が一段と高ま
る許りでなく、表面の清浄化、単体強度の増大等
が図られ、商品化適性が一層具わるに至る。
次に、本発明の実施例について述べる。
培養基体
a 大谷石から生成した焼成ゼオライト粉粒
400Kg
b 森林表層土(黒土) 80Kg
有機質栄養源
a 米糖 15Kg
b 豆清 20Kg
c 骨粉 30Kg
d 魚粕 15Kg
e 鶏糞 25Kg
f 油カス 30Kg
有用微生物 ZS42 2Kg
水分 含水比 50%
これらの各要素を前述したように、ゼオライト
と森林表層土とを培養基体としてこれに各種有
機質栄養源を付加し、さらにこれに有用微生物
を接種培養し、水分を含水比50%に保持した
うえ、加熱室に入れて60℃で夏期においては50〜
70時間、冬期においては200〜250時間加熱処理し
て醗酵腐熟させ、本発明による土壌改良剤を得
る。
以上によつて得られた土壌改良剤を、本発明の
発明者がキユウリ裁培用土壌に適用した結果、次
表のような対比成果を確証することができた。
The present invention relates to a soil conditioner that uses zeolite and has a fertilizer effect. Zeolite is known to be a useful soil conditioner because it has excellent ion exchange ability, gas adsorption, etc., and has a high content of exchangeable bases containing many useful minerals. In recent years, so-called organic fertilizers have been reacknowledged as opposed to chemical fertilizers, so soil conditioners that have a fertilizer effect that contain a mixture of zeolite and organic fertilizers have been proposed. However, in the past, this type of soil conditioner was simply a mixture of zeolite and an organic nutrient source such as chicken manure, so the organic nutrient source became humus due to the action of useful microorganisms in the soil and became a useful fertilizer. It took a long time for this to occur, and for this reason, in today's extremely intensive agricultural situation, it cannot be said that it is a soil conditioner with sufficient fertilizer effects. Therefore, attempts have been made to inoculate useful microorganisms into a mixture of zeolite and organic nutrients to promote humus of the organic nutrients in the fertilized soil. This thing is
Although the effect of promoting humus by inoculating useful microorganisms has been recognized to some extent, it is still inferior to the immediate effect as it attempts to humus the organic nutrient sources in the fertilized soil, and furthermore, the humus time is easily influenced by temperature and does not change from season to season. It could not be used as a stable soil conditioner. The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned circumstances, and although it is a product in which zeolite is mixed with an organic nutrient source, it has excellent immediate effect and is stable throughout the seasons. The purpose of the present invention is to provide a soil improvement agent that can be mixed into soil to increase the activity of the soil, improve the rhizosphere environment of crops, and obtain high yields. To explain the present invention below, the soil conditioner of the present invention uses zeolite powder such as Oya stone, which has high ion exchange ability, gas adsorption property, and exchangeable base content, as a culture substrate, and molasses rich in carbon source. , rice sugar, soybean liquid rich in nitrogen sources, bone meal rich in useful mineral sources, poultry manure, and other easily decomposable organic nutrients are added, and to this, pure cultured ingredients rich in fiber decomposition power and organic acid production power are added. Cells or spores of useful microorganisms such as filamentous fungi, yeast fungi, and bacteria are appropriately selected and mixed, inoculated and cultured, an appropriate amount of water is added, and the mixture is heated to an appropriate temperature under an appropriate heating means such as a heating chamber. It is characterized by being obtained by fermentation and heat treatment by heat treatment. The zeolite used in the present invention may be natural, but if it is a calcined zeolite obtained by firing at a high temperature, the adsorption capacity of the zeolite itself will not only further increase, but also the surface will be cleaned and the strength of the unit will increase. etc., and the suitability for commercialization is further enhanced. Next, examples of the present invention will be described. Culture substrate a Calcined zeolite powder produced from Oya stone
400Kg b Forest surface soil (black soil) 80Kg Organic nutrient source a Rice sugar 15Kg b Soybean serum 20Kg c Bone meal 30Kg d Fish meal 15Kg e Poultry manure 25Kg f Oil scum 30Kg Useful microorganisms ZS 42 2Kg Water Water content ratio 50% Each of these elements is described above As described above, zeolite and forest surface soil are used as a culture substrate, various organic nutrients are added to this, useful microorganisms are inoculated and cultured, the water content is maintained at 50%, and the mixture is placed in a heating chamber. 50~ in summer at 60℃
The soil conditioner according to the present invention is obtained by heat treatment for 70 hours and for 200 to 250 hours in winter to ferment and ripen. The inventor of the present invention applied the soil conditioner obtained above to soil for cultivating cucumbers, and as a result, was able to confirm the comparative results shown in the following table.
【表】
この様に、本発明の土壌改良剤は、イオン交換
能、交換性塩基含量の優れたゼオライトを培養基
体として用いたから、作物の主要な栄養源である
窒素(アンモニアとして)やカリウム等を多量に
吸着すると共に多量の水分を保持する。しかも、
適温条件下での加熱処理によつて、有用微生物に
よる有機質栄養源の醗酵腐熱を行なわしめたか
ら、土壌改良剤には、有用微生物が大量に増殖
し、しかも醗酵腐熱に伴う有機質栄養源の分解作
用によつて即効性のある有機質肥料養分が多量に
存在するうえ各種微量有用元素が活性化して有効
度が高まり植物の吸収しやすい状態で保持される
ことになる。従つて、この土壌改良剤を耕土や苗
床土等の土壌に適宜量混合することにより、土壌
の悪環境(例えば残留農薬に汚染された土壌)
を、増殖した有用微生物とゼオライトとの相互作
用で有機的、生物学的に改良して、残留農薬の分
解を促進し、植物有害菌類等の抑制、細菌斑点病
の予防、各種塩類による濃度障害の軽減、酸性土
壌の中性化をもたらし、しかも、すでに分解され
た即効性のある有用な各種成分、肥料分を直ちに
放出供給することになり、もつて季節にかかわり
なく土壌改良効果と肥料効果とが相俟つた相乗的
な作用効果を奏し得て、作物の著しい高収穫を得
ることができる。しかも、水分がゼオライトに吸
水保持されることになるため、作物を早害から有
効に守ることができる許りか、増殖微生物による
発生熱が吸水保持されたゼオライトに作用して蓄
熱される結果、地温が高められ、土壌の凍結を防
止して作物を冷害から守り、又これをハウス裁培
等に使用した場合には暖房費の節約ができて省エ
ネルギーに貢献するなど幾多の作用効果をもたら
すことができるものである。[Table] As described above, the soil conditioner of the present invention uses zeolite, which has excellent ion exchange ability and exchangeable base content, as a culture substrate. It adsorbs a large amount of water and retains a large amount of water. Moreover,
By heat treatment under suitable temperature conditions, useful microorganisms are used to ferment and rot the organic nutrient source, so the soil conditioner has a large amount of useful microorganisms that grow, and the organic nutrient source due to the fermentation rot. Due to the decomposition action, a large amount of quickly-acting organic fertilizer nutrients are present, and various trace amounts of useful elements are activated, increasing their effectiveness and being retained in a state that is easily absorbed by plants. Therefore, by mixing an appropriate amount of this soil conditioner into soil such as cultivated soil or nursery soil, it is possible to improve the soil environment (for example, soil contaminated with residual pesticides).
is improved organically and biologically through the interaction of grown useful microorganisms and zeolite, promoting the decomposition of residual pesticides, suppressing fungi that are harmful to plants, preventing bacterial spot disease, and preventing concentration disturbances caused by various salts. In addition, various quickly-acting and useful components and fertilizers that have already been decomposed are immediately released and supplied, resulting in soil improvement and fertilizer effects regardless of the season. These can have a synergistic effect, resulting in extremely high crop yields. Moreover, since water is absorbed and retained by the zeolite, it is possible to effectively protect crops from early damage.As a result, the heat generated by the proliferating microorganisms acts on the zeolite, which absorbs and retains water, and is stored, causing the soil temperature to rise. It has many effects, such as preventing soil from freezing and protecting crops from cold damage, and when used for cultivation in greenhouses, reduces heating costs and contributes to energy conservation. It is possible.
Claims (1)
む易分解性の有機質栄養源を付加するとともに有
用微生物を接種培養し、さらに水分を適宜量加
え、これを所要時間適温で加熱処理して醗酵腐熱
させて得たことを特徴とする土壌改良剤。 2 有用微生物はZS42とし、含水比50%、温度60
℃で夏季においては50〜70時間、冬季においては
200〜250時間に相当する加熱処理で得た特許請求
の範囲第1項記載の土壌改良剤。[Scope of Claims] 1 Adding a nutrient-rich and easily degradable organic nutrient source to a culture substrate made of zeolite, inoculating and culturing useful microorganisms, adding an appropriate amount of water, and heat-treating this at an appropriate temperature for a required period of time. A soil improvement agent characterized by being obtained by fermentation and rotting. 2 Useful microorganisms are ZS 42 , water content 50%, temperature 60
°C for 50 to 70 hours in summer and in winter
The soil conditioner according to claim 1 obtained by heat treatment corresponding to 200 to 250 hours.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55131404A JPS5755986A (en) | 1980-09-19 | 1980-09-19 | Manufacture of soil conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55131404A JPS5755986A (en) | 1980-09-19 | 1980-09-19 | Manufacture of soil conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5755986A JPS5755986A (en) | 1982-04-03 |
JPS6231037B2 true JPS6231037B2 (en) | 1987-07-06 |
Family
ID=15057176
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55131404A Granted JPS5755986A (en) | 1980-09-19 | 1980-09-19 | Manufacture of soil conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5755986A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006143974A (en) * | 2004-11-25 | 2006-06-08 | Akita Univ | Environmental cleaning material and method for producing the same |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61281190A (en) * | 1985-02-25 | 1986-12-11 | Kimura:Kk | Production of inorganic soil conditioning material |
JPS61195186A (en) * | 1985-02-25 | 1986-08-29 | Kimura:Kk | Production of inorganic soil-improver |
JPS61221285A (en) * | 1985-03-26 | 1986-10-01 | Yamagami Honsha:Kk | Preparation of multi-functional soil conditioner |
JPS61235490A (en) * | 1985-04-11 | 1986-10-20 | Oriental Kagaku Sangyo Kk | Production of inorganic ion exchange soil conditioner |
US4985060A (en) * | 1985-07-04 | 1991-01-15 | Saken Corporation | Soil conditioners |
JPS627787A (en) * | 1985-07-05 | 1987-01-14 | Sunaken Kk | Soil amending agent |
US5549729A (en) * | 1988-09-09 | 1996-08-27 | Yamashita; Thomas T. | Method and composition for promoting and controlling growth of plants |
US5797976A (en) * | 1988-09-09 | 1998-08-25 | Yamashita; Thomas T. | Method and composition for promoting and controlling growth of plants |
US5582627A (en) * | 1988-09-09 | 1996-12-10 | Yamashita; Thomas T. | Detoxification of soil |
DE19807406C2 (en) * | 1998-02-21 | 2001-08-23 | Heinzel Klaus | Bioactive composite product based on zeolite flour, its production and use for wastewater treatment |
CN106903161B (en) * | 2017-03-16 | 2019-12-31 | 中国科学院沈阳应用生态研究所 | Comprehensive conditioner for promoting degradation of mesophilic aerobic microorganisms and preparation and use methods thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS499499A (en) * | 1972-05-25 | 1974-01-28 | ||
JPS51124581A (en) * | 1975-04-17 | 1976-10-30 | Tokikazu Emoto | Soil conditioning organiccinorganic compound fertilizer |
JPS5265078A (en) * | 1975-11-20 | 1977-05-30 | Masanori Shinozaki | Process for producing fermentation base of compost |
JPS5466259A (en) * | 1977-10-25 | 1979-05-28 | Chuo Shizai Kk | Soil improving material adsorbed with water soluble fertilizer effect promotor and production thereof |
JPS54111461A (en) * | 1978-02-17 | 1979-08-31 | Hiromichi Nakatsu | Soil improver and production thereof |
-
1980
- 1980-09-19 JP JP55131404A patent/JPS5755986A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS499499A (en) * | 1972-05-25 | 1974-01-28 | ||
JPS51124581A (en) * | 1975-04-17 | 1976-10-30 | Tokikazu Emoto | Soil conditioning organiccinorganic compound fertilizer |
JPS5265078A (en) * | 1975-11-20 | 1977-05-30 | Masanori Shinozaki | Process for producing fermentation base of compost |
JPS5466259A (en) * | 1977-10-25 | 1979-05-28 | Chuo Shizai Kk | Soil improving material adsorbed with water soluble fertilizer effect promotor and production thereof |
JPS54111461A (en) * | 1978-02-17 | 1979-08-31 | Hiromichi Nakatsu | Soil improver and production thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006143974A (en) * | 2004-11-25 | 2006-06-08 | Akita Univ | Environmental cleaning material and method for producing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS5755986A (en) | 1982-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4952229A (en) | Plant supplement and method for increasing plant productivity and quality | |
US20180065896A1 (en) | Nitrifying micro-organisms for fertilization | |
CN104447040B (en) | A kind of three sour mixed fermentation biological organic fertilizers and preparation method thereof and the application in tobacco planting | |
CN107162816A (en) | A kind of stalk semi-decomposed alkaline land improving fertilizer | |
CN101525254A (en) | Multifunctional biological compound fertilizer as well as preparation method and application thereof | |
KR100378667B1 (en) | Orderlessfying and converting method into compost of excreta and composition thereof | |
CN109762765B (en) | Decomposed solid fermentation microbial inoculum and application thereof in agricultural wastes | |
CN111792970A (en) | Organic fertilizer prepared from cow dung and straw and preparation method thereof | |
JPS6231037B2 (en) | ||
CN107512974A (en) | A kind of charcoal base manure preparation method for material and its application | |
JP2638399B2 (en) | Edible mushroom cultivation method and medium | |
EP2828225B1 (en) | Method for composting spent mushroom compost | |
KR100965631B1 (en) | Bed-soil composition comprising bacillus sp. microbe and preparation method thereof | |
CN104909949A (en) | Special compound biological organic fertilizer for peanuts and preparation method thereof | |
GB2037730A (en) | Fertilizer from fermented organic residues, manure, and peat | |
CN108887139A (en) | A kind of safe and environment-friendly, economizing type greengrocery hole plate seedling growth dedicated substrate compounded using cow manure | |
CN109438079B (en) | Soluble biological organic fertilizer and production method thereof | |
CN111492940A (en) | Special substrate for soilless culture of tomatoes and preparation method thereof | |
BR112015025912B1 (en) | Immobilization process to obtain a plant growth stimulating biological inoculant, teak support, and biological inoculant | |
JPH02108609A (en) | Soil blight controlling and plant growth promoting agent | |
CN108675894A (en) | A kind of microbial organic fertilizer containing bacillus cereus | |
CN107602278A (en) | The preparation method of tobacco breeding and seedling nursing with equipment matrix | |
JP2000192038A (en) | Soil conditioner, seedling medium, and their preparation | |
JPH05207816A (en) | Production of gradated culture soil of microorganism treatment of water cleaning cake | |
JPH01264986A (en) | Plant growing agent |