JP2006271237A - Method for cultivating vegetable reduced in content of nitrate nitrogen - Google Patents
Method for cultivating vegetable reduced in content of nitrate nitrogen Download PDFInfo
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- 235000013311 vegetables Nutrition 0.000 title claims abstract description 50
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000002689 soil Substances 0.000 claims abstract description 33
- 239000003337 fertilizer Substances 0.000 claims abstract description 28
- 239000000126 substance Substances 0.000 claims abstract description 28
- 239000002023 wood Substances 0.000 claims abstract description 9
- 238000000855 fermentation Methods 0.000 claims abstract description 8
- 230000004151 fermentation Effects 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000003516 soil conditioner Substances 0.000 claims description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 235000021384 green leafy vegetables Nutrition 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 238000012364 cultivation method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000035784 germination Effects 0.000 description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000002361 compost Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 4
- 238000003306 harvesting Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 244000300264 Spinacia oleracea Species 0.000 description 3
- 235000009337 Spinacia oleracea Nutrition 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241000218645 Cedrus Species 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000012228 culture supernatant Substances 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000010871 livestock manure Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000013138 pruning Methods 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 235000020083 shōchū Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 244000291564 Allium cepa Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 240000002234 Allium sativum Species 0.000 description 1
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 1
- 235000000536 Brassica rapa subsp pekinensis Nutrition 0.000 description 1
- 241000499436 Brassica rapa subsp. pekinensis Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000235646 Cyberlindnera jadinii Species 0.000 description 1
- 244000017020 Ipomoea batatas Species 0.000 description 1
- 235000002678 Ipomoea batatas Nutrition 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 244000088415 Raphanus sativus Species 0.000 description 1
- 235000006140 Raphanus sativus var sativus Nutrition 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 241000006364 Torula Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
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- 230000002411 adverse Effects 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 235000004611 garlic Nutrition 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
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- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本発明は、化学肥料を施肥して栽培した野菜中に多く含有される硝酸態窒素を、収穫期に、顕著に低減させる、野菜類の栽培方法に関する。 The present invention relates to a method for cultivating vegetables that significantly reduces nitrate nitrogen contained in a large amount of vegetables cultivated by applying chemical fertilizer during the harvest period.
麦藁、稲藁、木質、木皮の繊維を利用した堆肥は、穀物、野菜を栽培する際に生育を良くし、病虫害や気候の変化に強くする為に昔から広く使用されてきた。しかしながら 最近は堆肥の生産に時間を要すること、農業に携わる人の高齢化に伴ないその堆肥を田畑に敷きこむ煩雑さ等から、堆肥の使用が少なくなり、変わって化学肥料が多用される傾向にある。 Compost using wheat straw, rice straw, wood, and bark fibers has been widely used for a long time in order to improve the growth of crops and vegetables and to be resistant to pest damage and climate change. Recently, however, compost production takes time, and due to the aging of the people involved in agriculture, compost is less frequently used. It is in.
ところで、化学肥料を多用すると収穫量は増大するものの、野菜類は一般に窒素源として硝酸塩を好むため、野菜中の硝酸根濃度も、野菜の種類、生育ステージ、生育環境等によって異なるが、他の農作物に比較しても高くなると言われている。これら硝酸根濃度の高い野菜を摂取すると、例えば、生体内で亜硝酸に返還され悪影響を及ぼす等、人体に有害であるとの報告がなされている。かかる観点から、野菜類の硝酸根濃度を減少させるため、化学肥料の使用量を低減させる方法、硝酸態窒素にかえてアンモニア態窒素を使用する方法、等が検討されているが、生育に限度がでる、あるいは成長不良を招きやすい、ことから、収穫量の低下をまねき、現実的な方法とは言い難い。 By the way, although a large amount of chemical fertilizer increases the yield, vegetables generally prefer nitrate as a nitrogen source, so the nitrate root concentration in vegetables also varies depending on the type of vegetables, growth stage, growth environment, etc. It is said that it will be higher than crops. It has been reported that ingestion of these vegetables with a high nitrate root concentration is harmful to the human body, for example, it is returned to nitrous acid in vivo and has an adverse effect. From this point of view, methods to reduce the amount of chemical fertilizer used to reduce the concentration of nitrate in vegetables and methods using ammonia nitrogen instead of nitrate nitrogen have been studied. It is difficult to say that it is a realistic method because it causes a decrease in the yield, because it is likely to cause a growth or poor growth.
そこで、栽培の少なくとも末期に酢酸あるいは酢酸塩を施用する方法（特許文献１）、水溶性チタンを葉面散布あるいは施用する方法（特許文献２）等が報告されている。しかしながら、これらの方法によっても、野菜中の硝酸態窒素の含有量の低減は十分とはいえず、また、場合によっては酢酸、酸化チタン等により野菜類の生育障害がでる、という欠点もあった。
本発明の目的は、化学肥料を施肥して野菜類を栽培する方法において、野菜類の品質、収穫量を落とすことなく、収穫時の野菜中の硝酸態窒素の含有量を低減させる栽培方法を提供することにある。 The object of the present invention is to cultivate vegetables by fertilizing chemical fertilizers, and to reduce the quality of vegetables and the amount of nitrate nitrogen in the vegetables at the time of harvest without reducing the yield. It is to provide.
本発明者らは、特定の土壌改良剤を土壌中に配合することにより、かかる課題を解決できることを見いだし、本発明に到達した。
すなわち本発明は、
（１）化学肥料を施肥する野菜類の栽培において、木質及び／又はバークを主原料とし発酵助剤を加えて発酵させて得られた木質系土壌改良剤を、栽培土壌中に配合することを特徴とする、硝酸態窒素の含有量が低減された野菜類の栽培方法、
（２）発酵助剤が、窒素、リン酸、カリウムを含むものである、上記（１）記載の硝酸態窒素の含有量が低減された野菜類の栽培方法、
（３）土壌改良剤の配合割合が、１０ａ当たり１〜５０ｔである、上記（１）乃至（２）記載の硝酸態窒素の含有量が低減された野菜類の栽培方法、
（４）野菜類が、葉菜類又は根菜類である、上記（１）乃至（３）のいずれか一に記載の硝酸態窒素の含有量が低減された野菜類の栽培方法、
を提供するものである。
The present inventors have found that such a problem can be solved by blending a specific soil conditioner into the soil, and have reached the present invention.
That is, the present invention
(1) In the cultivation of vegetables fertilized with chemical fertilizer, adding wood-based soil conditioner obtained by fermenting wood and / or bark as a main raw material and adding a fermentation aid to the cultivation soil A vegetable cultivation method with reduced nitrate nitrogen content,
(2) The method for cultivating vegetables with reduced content of nitrate nitrogen as described in (1) above, wherein the fermentation aid contains nitrogen, phosphoric acid, and potassium,
(3) The method for cultivating vegetables with a reduced content of nitrate nitrogen according to (1) to (2) above, wherein the blending ratio of the soil conditioner is 1 to 50 t per 10a,
(4) The method for cultivating vegetables with reduced nitrate nitrogen content according to any one of (1) to (3), wherein the vegetables are leaf vegetables or root vegetables,
Is to provide.
本発明の栽培方法は、従来、野菜の生育を促進させ収穫時期を速め、更に収穫増量を目的に化学肥料を単独で多量施肥していたのと異なり、特定の土壌改善剤を化学肥料と併用することにより、また、栽培途中で化学肥料を追肥しても、野菜の品質・収穫量を落とすことなく、硝酸態窒素の含有量を著しく低減できる為、自然環境や人体にやさしい野菜を提供することが可能となる。 The cultivation method of the present invention is conventionally used in combination with a chemical fertilizer to promote the growth of vegetables, accelerate the harvesting time, and, unlike the conventional method of applying a large amount of chemical fertilizer alone for the purpose of increasing the yield. In addition, even if additional fertilizer is added during cultivation, the content of nitrate nitrogen can be significantly reduced without reducing the quality and yield of vegetables, providing vegetables that are friendly to the natural environment and the human body. It becomes possible.
以下、本発明を詳細に説明する。
本発明は、化学肥料を施肥して野菜類を栽培する方法に関し、木質系土壌改善剤を、栽培土壌中に配合して栽培するものである。
本発明に用いられる木質系土壌改良剤は、木質あるいはバークを主原料とし、これに発酵助剤を混合し、堆積・切替しを繰り返し６ヶ月以上、好ましくは１０ヶ月から１５ヶ月間発酵させて得られるものであり、具体的には、バーク堆肥、木質系の堆肥等を例示することができる。
Hereinafter, the present invention will be described in detail.
The present invention relates to a method for cultivating vegetables by fertilizing a chemical fertilizer, and cultivates a woody soil improver in a cultivated soil.
The woody soil improver used in the present invention is mainly made of wood or bark, mixed with a fermentation aid, and repeatedly deposited and switched for 6 months or more, preferably 10 to 15 months. Specifically, examples include bark compost and wood compost.
発酵助剤としては、公知のものが用いられるが、窒素、リン酸、カリウムを含むものが好ましく、具体的には、鶏糞、バイオスラリー、焼酎粕、等が好ましい。ここで、バイオスラリーとは、酵母、特にキャンディダ・ユティリス、培養上澄液に水酸化カルシウム、凝集剤を添加し得られるスラリーである。
発酵助剤は単独で、あるいは混合して用いることができ、木質あるいはバーク（乾燥重量）に対して、１０〜５０重量％（乾燥重量）添加される。
As the fermentation aid, known ones are used, but those containing nitrogen, phosphoric acid and potassium are preferred, and specifically, chicken manure, bioslurry, shochu and the like are preferred. Here, the bio-slurry is a slurry obtained by adding calcium hydroxide and a flocculant to yeast, particularly Candida utilis, and culture supernatant.
Fermentation aids can be used alone or in combination, and are added in an amount of 10 to 50% by weight (dry weight) based on wood or bark (dry weight).
木質系土壌改良剤の土壌への配合は、土壌と混ぜ合わせることにより実施されるが、特に、野菜類の根部の周辺にそのまま固形で配合・被覆することが望ましく、又液状（懸濁状）にして散布することもできる。
木質系土壌改良剤は、土壌１０ａ（１反）に対して好ましくは１〜５０ｔ、更に好ましくは５〜２０ｔ添加される。添加量がこれ未満では本発明の効果が発現しにくく、一方、添加量がこれを超えても効果の発現が更に増加するわけでなく、コストアップを招く。
The mixing of the woody soil conditioner into the soil is carried out by mixing it with the soil. In particular, it is desirable to mix and cover the vegetable root as it is in solid form, and it is also liquid (suspended). Can be sprayed.
The woody soil improver is preferably added in an amount of 1 to 50 t, and more preferably 5 to 20 t, with respect to the soil 10a (one layer). If the addition amount is less than this, the effect of the present invention is hardly exhibited. On the other hand, if the addition amount exceeds this amount, the effect is not further increased, resulting in an increase in cost.
用いられる化学肥料は、通常、野菜類を栽培する時に用いられるものであれば特に制限はない。
化学肥料は、栽培期間の当初から土壌に施肥してもよく、追肥することもできるが、好ましくは、栽培前に土壌に木質系土壌改良剤と共に施肥し、その後、追肥すること、例えば収穫１〜３週間前、が望ましい。
If the chemical fertilizer used is normally used when growing vegetables, there will be no restriction | limiting in particular.
The chemical fertilizer may be fertilized on the soil from the beginning of the cultivation period, or may be supplemented, but preferably, the soil is fertilized with a woody soil conditioner before cultivation, and then supplemented, for example, harvest 1 ~ 3 weeks ago is desirable.
栽培できる野菜類は、葉菜類、根菜類のいずれでも良く、例えば、葉菜類としては、ホウレンソウ、チンゲンサイ、コマツナ、シュンギク、ハクサイ等を、根菜類としては、大根、サツマイモ、タマネギ等を例示することができる。これら野菜類では、硝酸態窒素の蓄積が過剰に認められる葉菜類が特に好ましい。
野菜の栽培は、野菜の種類の応じて、公知の方法に準じて行うことができる。
Vegetables that can be cultivated may be either leaf vegetables or root vegetables. Examples of leaf vegetables include spinach, chinensai, komatsuna, garlic, Chinese cabbage, etc., and examples of root vegetables include radish, sweet potato, onion and the like. . Among these vegetables, leaf vegetables with excessive accumulation of nitrate nitrogen are particularly preferable.
Cultivation of vegetables can be performed according to a known method according to the type of vegetables.
以下、実施例を挙げて本発明を詳細に説明する。
なお、実施例における測定は、以下の方法によった。
１．野菜中の硝酸態窒素測定法
野菜の１／２株または１株を秤量後、小型ミキサ−で切り刻み、これを濾布で搾り取り、絞り汁を試料液とした。
試料液をリフレクトクァント試験紙（硝酸テスト用Ｎｏ３標準試験紙）に浸し、 関東化学社製ＲＱフレックスプラス（高感度反射式光度計）測定器により、硝酸態窒素を測定した。
２．野菜の重量及び草丈の測定法
（１）重量は、根部を切除した葉部を秤量した。
（２）草丈は、根部を切除した葉部を測定した。
Hereinafter, the present invention will be described in detail with reference to examples.
In addition, the measurement in an Example was based on the following method.
1. Method of measuring nitrate nitrogen in vegetables After weighing 1/2 or 1 vegetable, it was chopped with a small mixer, squeezed with a filter cloth, and juice was used as a sample solution.
The sample solution was immersed in a reflective quant test paper (No. 3 standard test paper for nitric acid test), and nitrate nitrogen was measured with an RQ flex plus (high sensitivity reflection photometer) measuring instrument manufactured by Kanto Chemical.
2. Measuring method of vegetable weight and plant height (1) The weight was obtained by weighing the leaf part from which the root part was excised.
(2) The plant height was measured on the leaf part from which the root part was excised.
製造例
トルラ酵母培養液を遠心分離で菌体を除去し、得られた上澄液（ＣＯＤ：２８０ｐｐｍ、ＰＯ４−Ｐ：６９ｐｐｍ、ＮＨ４−Ｎ：３４ｐｐｍ、ｐＨ４．９）１３４ｋＬに、水酸化カルシウムを添加してｐＨ１２．２とした後、凝集剤としてモスナイト（クラスター社製）を対液１８２ｐｐｍ添加し、沈降槽で沈降させることによりスラリー４．８ｋＬを得た。これを、タンクに静置後上排し、培養液上澄中の固形分を含むバイオスラリー２．０４ｋＬを得た（固形分含量（絶乾％）、炭素：２２．１％、Ｔ−Ｎ：３％、Ｔ−Ｐ：６％、Ｔ−Ｃａ：３８％、Ｔ−Ｋ：０．８％）。
杉バーク３３００ｋｇ（乾燥重量１２００ｋｇ）又は庭木の剪定材をチップ化したもの２８００ｋｇ（乾燥重量１２００ｋｇ）に、それぞれ、鶏糞６８４ｋｇ（乾燥重量３４０ｋｇ）、焼酎滓１７１ｋｇ（乾燥重量１２ｋｇ）及びバイオスラリー６００ｋｇ（乾燥重量２４ｋｇ）を添加し堆積した。堆積後約１ヶ月ごとに切り返し９ヶ月堆積した後、そのまま約３ヶ月堆積し、木質系土壌改良剤を得た。
杉バークを使用したものをバイオミクスＢ、剪定材を使用したものをバイオミクスＷとした。
バイオミクスＢ…窒素全量：１．６４％、石灰全量：４．２２％、有機炭素：４５．１％、有機物：８７．２％、リン酸：１．０８％、カリウム：０．７７％、（以上、乾物）、Ｃ／Ｎ：２７．５
バイオミクスＷ…窒素全量：１．８７％、石灰全量：５．１１％、有機炭素：４４．２％、有機物：８５．４％、リン酸：１．６０％、カリウム：０．９０％、（以上、乾物）、Ｃ／Ｎ：２３．６
Production Example Centrifugation of Torula yeast culture broth was carried out to remove cells, and the obtained supernatant (COD: 280 ppm, PO 4 -P: 69 ppm, NH 4 -N: 34 ppm, pH 4.9) was then hydroxylated to 134 kL. After adding calcium to pH 12.2, 182 ppm of mosnite (manufactured by Cluster Co., Ltd.) as an aggregating agent was added and precipitated in a settling tank to obtain 4.8 kL of slurry. This was left to stand in a tank and then drained to obtain 2.04 kL of bioslurry containing solid content in the culture supernatant (solid content (absolutely dry%), carbon: 22.1%, TN) : 3%, TP: 6%, T-Ca: 38%, TK: 0.8%).
Cedar bark 3300 kg (dry weight 1200 kg) or garden tree pruning 2800 kg (dry weight 1200 kg), chicken manure 684 kg (dry weight 340 kg), shochu 171 kg (dry weight 12 kg) and bioslurry 600 kg (dry) 24 kg) was added and deposited. After depositing, the deposit was turned over every month for about 9 months, and then deposited for about 3 months to obtain a woody soil conditioner.
The one using cedar bark was designated Biomix B and the one using pruning material was designated Biomix W.
Biomix B: total nitrogen: 1.64%, total lime: 4.22%, organic carbon: 45.1%, organic matter: 87.2%, phosphoric acid: 1.08%, potassium: 0.77%, (Above, dry matter), C / N: 27.5
Biomix W: total nitrogen: 1.87%, total lime: 5.11%, organic carbon: 44.2%, organic matter: 85.4%, phosphoric acid: 1.60%, potassium: 0.90%, (Above, dry matter), C / N: 23.6
実施例１
木質系土壌改良剤として、製造例で製造したバイオミクスＢ及びバイオミクスＷを使用した。
４個の１５Ｌ容プランター（横５８ｃｍ×タテ１８ｃｍ×高さ１５ｃｍ）に、基本土壌（グリーンファーム社製、花と野菜の土）、木質系土壌改良剤及び化学肥料（日産アグリ社製、みずほ８・８・８）を下記に示す混合比で調整した。
（Ａ）基本土壌１１．７Ｌ：バイオミクスＢ１．３Ｌ：化学肥料３０ｇ
（Ｂ）基本土壌１１．７Ｌ：バイオミクスＷ１．３Ｌ：化学肥料３０ｇ
（Ｃ）基本土壌１３Ｌ：木質系土壌改良剤なし：化学肥料３０ｇ
（Ｄ）基本土壌１３Ｌ：木質系土壌改良剤なし：化学肥料なし
各プランターに小松菜の種を播種し、発芽後に生育の揃った８株を選抜し、他は間引いた。
発芽後３３日目に、前記化学肥料３００ｇを１０Ｌの水に溶解し、各プランターに各１Ｌを追肥した。その後、発芽後４５、５４、５７、６４日目に各２株ずつ採取し、重量、草丈、硝酸態窒素を測定した。（栽培時期：平成１６年７月２４日〜９月１０日、場所：興人佐伯工場内）
結果を表１に示す。
Example 1
Biomix B and Biomix W produced in Production Examples were used as the woody soil conditioner.
Four 15L planters (width 58cm x length 18cm x height 15cm), basic soil (green farm, flower and vegetable soil), woody soil conditioner and chemical fertilizer (Nissan Agri, Mizuho 8) · 8.8) was adjusted with the mixing ratio shown below.
(A) Basic soil 11.7L: Biomix B1.3L: Chemical fertilizer 30g
(B) Basic soil 11.7L: Biomix W1.3L: Chemical fertilizer 30g
(C) Basic soil 13L: No woody soil improver: 30 g of chemical fertilizer
(D) Basic soil 13L: No woody soil improver: No chemical fertilizer Each planter was sown with komatsuna seeds, 8 strains that had grown after germination were selected, and the others were thinned out.
On day 33 after germination, 300 g of the chemical fertilizer was dissolved in 10 L of water, and 1 L of each planter was additionally fertilized. Thereafter, two strains were collected at 45, 54, 57, and 64 days after germination, and the weight, plant height, and nitrate nitrogen were measured. (Cultivation period: July 24-September 10, 2004, location: inside the Sajin factory of Kojin)
The results are shown in Table 1.
表１に示されるように、木質系土壌改良剤配合区（Ａ、Ｂ）は化学肥料区（Ｃ）と同様の生育状況を示した。硝酸態窒素の蓄積については、化学肥料区（Ｃ）が高位で横ばいであるのに対して木質系土壌改良剤配合区（Ａ、Ｂ）では、栽培後半に激減する事が分かる。なお、小松菜の出荷サイズは、通常、８０〜１００ｇ程度であり、栽培に数は５０〜６０日である。 As shown in Table 1, the woody soil improver-blended section (A, B) showed the same growth situation as the chemical fertilizer section (C). Regarding the accumulation of nitrate nitrogen, it can be seen that the chemical fertilizer section (C) is high and leveling, while the woody soil conditioner combination section (A, B) decreases sharply in the latter half of cultivation. In addition, the delivery size of Komatsuna is about 80-100g normally, and the number for cultivation is 50-60 days.
実施例２
実施例１において、基本土壌として畑土（大分県佐伯市で採取）を用い、下記配合で、実施例１と同様にして小松菜を栽培した。
（Ａ）基本土壌１１．７Ｌ：バイオミクスＢ１．３Ｌ：化学肥料３０ｇ
（Ｂ）基本土壌１１．７Ｌ：バイオミクスＷ１．３Ｌ：化学肥料３０ｇ
（Ｃ）基本土壌１１．７Ｌ：木質系土壌改良剤なし：化学肥料３０ｇ
各プランターに小松菜の種を播種し、発芽後に生育の揃った８株を選抜し、他は間引いた。
発芽後１５日目に、前記化学肥料３００ｇを１０Ｌの水に溶解し、各プランターに各１Ｌを追肥した。その後、発芽後３０、３５、４０、４５日目に各２株ずつ採取し、重量、硝酸態窒素を測定した。（栽培時期：平成１６年１１月１９日〜平成１７年１月７日、場所：興人佐伯工場内ハウス棟）
結果を表２に示す。
Example 2
In Example 1, komatsuna was cultivated in the same manner as in Example 1 using upland soil (collected in Saiki City, Oita Prefecture) as basic soil.
(A) Basic soil 11.7L: Biomix B1.3L: Chemical fertilizer 30g
(B) Basic soil 11.7L: Biomix W1.3L: Chemical fertilizer 30g
(C) Basic soil 11.7L: No woody soil improver: Chemical fertilizer 30g
Each planter was sown with komatsuna seeds, 8 strains that had grown after germination were selected, and the others were thinned out.
On the 15th day after germination, 300 g of the chemical fertilizer was dissolved in 10 L of water, and 1 L of each planter was additionally fertilized. Thereafter, two strains were collected at 30, 35, 40, and 45 days after germination, and the weight and nitrate nitrogen were measured. (Cultivation time: November 19, 2004-January 7, 2005, location: House building in Kojin Saeki factory)
The results are shown in Table 2.
表２に示されるように、畑土を用いても同様に硝酸態窒素の蓄積が栽培後半に激減することが分かる。 As shown in Table 2, it can be seen that even when using upland soil, the accumulation of nitrate nitrogen is drastically reduced in the latter half of cultivation.
実施例３
実施例２において、小松菜の他にチンゲンサイ、ほうれん草を用い、下記配合で、実施例２と同様に栽培した。
・基本土壌１１．７Ｌ：バイオミクスＷ１．３Ｌ：化学肥料３０ｇ
各プランターに小松菜、チンゲンサイ、ほうれん草の種をそれぞれ播種し、発芽後に生育の揃った８株を選抜し、他は間引いた。
発芽後２０日目に、前記化学肥料３００ｇを１０Ｌの水に溶解し、各プランターに各１Ｌを追肥した。その後、発芽後３４、４１、４９日目に各２株ずつ採取し、重量、草丈、硝酸態窒素を測定した。（栽培時期：平成１７年１月６日〜平成１７年２月２８日、場所：興人佐伯工場内ハウス棟）
結果を表３に示す。
Example 3
In Example 2, it was cultivated in the same manner as in Example 2 with the following composition using Chingensai and spinach in addition to Komatsuna.
・ Basic soil 11.7L: Biomix W1.3L: Chemical fertilizer 30g
Each planter was sown with seeds of Komatsuna, Chingensai, and spinach, and eight strains that had grown after germination were selected, and the others were thinned out.
On the 20th day after germination, 300 g of the chemical fertilizer was dissolved in 10 L of water, and 1 L of each planter was additionally fertilized. Thereafter, two strains were collected on days 34, 41, and 49 after germination, and the weight, plant height, and nitrate nitrogen were measured. (Cultivation time: January 6, 2005 to February 28, 2005, location: House building in Kojin Saeki factory)
The results are shown in Table 3.
表３に示されるように、栽培時期によるものか、全体に硝酸態窒素の蓄積量は低いものの、チンゲンサイ、ほうれん草においても硝酸態窒素は栽培後半に減少することが分かる。 As shown in Table 3, it can be seen that nitrate nitrogen decreases in the latter half of cultivation even though it depends on the cultivation time or the accumulation amount of nitrate nitrogen is low as a whole.
実施例４
実施例２の配合（Ａ）において、バイオミクスＢの配合を基本土壌の２％〜２０％にかえて、実施例２と同様に栽培した。
すなわち、各プランターに小松菜の種を播種し、発芽後に生育の揃った８株を選抜し、他は間引いた。
発芽後２０日目に、前記化学肥料３００ｇを１０Ｌの水に溶解し、各プランターに各１Ｌを追肥した。その後、発芽後３１、３６、４３、５０日目に各２株ずつ採取し、重量、硝酸態窒素を測定した。（栽培時期：平成１６年１２月１４日〜平成１７年１月３１日、場所：興人佐伯工場内ハウス棟）
結果を表４に示す。
Example 4
In the mixing | blending (A) of Example 2, the mixing | blending of biomix B was changed to 2 to 20% of basic soil, and it cultivated similarly to Example 2. FIG.
That is, Komatsuna seeds were sown on each planter, 8 strains that had grown after germination were selected, and the others were thinned out.
On the 20th day after germination, 300 g of the chemical fertilizer was dissolved in 10 L of water, and 1 L of each planter was additionally fertilized. Thereafter, two strains were collected on days 31, 36, 43, and 50 after germination, and the weight and nitrate nitrogen were measured. (Cultivation time: December 14, 2004-January 31, 2005, location: House building in Kojin Saeki factory)
The results are shown in Table 4.
表４に示されるように、木質系土壌改質剤の配合比が２〜２０％の範囲では、野菜類の生育状況に大きな差はみられず、かつ、硝酸態窒素の蓄積量は大きく減少することが分かる。 As shown in Table 4, when the mixing ratio of the woody soil modifier is in the range of 2 to 20%, there is no significant difference in the growth of vegetables, and the amount of nitrate nitrogen accumulated is greatly reduced. I understand that
以上述べてきたように、本発明によると、木質あるいはバークを主原料とし発酵させた木質系土壌改良剤を用いるため、品質・収穫量を落とすことなく、硝酸態窒素の含有量を著しく低減できる為、自然環境や人体にやさしい野菜類を提供する事が可能となる。 As described above, according to the present invention, since a woody soil conditioner fermented using wood or bark as the main raw material is used, the content of nitrate nitrogen can be significantly reduced without reducing the quality and yield. Therefore, it is possible to provide vegetables that are kind to the natural environment and human body.
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| JP2011036226A (en) * | 2009-08-18 | 2011-02-24 | Akita Prefectural Univ | Low potassium-containing leaf vegetable and method for cultivating the same |
| JP2013132257A (en) * | 2011-12-27 | 2013-07-08 | Kyosen Sangyo Kk | Method of cultivating black ginger |
| JP2013220089A (en) * | 2012-04-19 | 2013-10-28 | Masami Tanabe | Plant cultivation method for understanding principle of raising of organism, and plant cultivation kit |
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