JPH03130021A - Coating film for culturing crop and culturing method using the same film - Google Patents
Coating film for culturing crop and culturing method using the same filmInfo
- Publication number
- JPH03130021A JPH03130021A JP1268235A JP26823589A JPH03130021A JP H03130021 A JPH03130021 A JP H03130021A JP 1268235 A JP1268235 A JP 1268235A JP 26823589 A JP26823589 A JP 26823589A JP H03130021 A JPH03130021 A JP H03130021A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- film
- wavelength
- light
- average transmittance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 20
- 238000000576 coating method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 7
- 238000012258 culturing Methods 0.000 title 2
- 238000002834 transmittance Methods 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- SODJJEXAWOSSON-UHFFFAOYSA-N bis(2-hydroxy-4-methoxyphenyl)methanone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=C(OC)C=C1O SODJJEXAWOSSON-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims description 10
- 241000219315 Spinacia Species 0.000 claims description 8
- 235000009337 Spinacia oleracea Nutrition 0.000 claims description 8
- 238000009331 sowing Methods 0.000 claims description 8
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 4
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- XJHABGPPCLHLLV-UHFFFAOYSA-N benzo[de]isoquinoline-1,3-dione Chemical compound C1=CC(C(=O)NC2=O)=C3C2=CC=CC3=C1 XJHABGPPCLHLLV-UHFFFAOYSA-N 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000002401 inhibitory effect Effects 0.000 abstract description 2
- 239000012801 ultraviolet ray absorbent Substances 0.000 abstract 2
- 241001674044 Blattodea Species 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 description 5
- 238000003306 harvesting Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- POLSVAXEEHDBMJ-UHFFFAOYSA-N (2-hydroxy-4-octadecoxyphenyl)-phenylmethanone Chemical compound OC1=CC(OCCCCCCCCCCCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 POLSVAXEEHDBMJ-UHFFFAOYSA-N 0.000 description 1
- CSUUDNFYSFENAE-UHFFFAOYSA-N (2-methoxyphenyl)-phenylmethanone Chemical compound COC1=CC=CC=C1C(=O)C1=CC=CC=C1 CSUUDNFYSFENAE-UHFFFAOYSA-N 0.000 description 1
- LHPPDQUVECZQSW-UHFFFAOYSA-N 2-(benzotriazol-2-yl)-4,6-ditert-butylphenol Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=CC=CC3=N2)=C1O LHPPDQUVECZQSW-UHFFFAOYSA-N 0.000 description 1
- UWSMKYBKUPAEJQ-UHFFFAOYSA-N 5-Chloro-2-(3,5-di-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O UWSMKYBKUPAEJQ-UHFFFAOYSA-N 0.000 description 1
- 241001124076 Aphididae Species 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- OCWYEMOEOGEQAN-UHFFFAOYSA-N bumetrizole Chemical compound CC(C)(C)C1=CC(C)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O OCWYEMOEOGEQAN-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004856 soil analysis Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Greenhouses (AREA)
- Protection Of Plants (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、作物栽培用の被覆フィルム、さらに詳しくい
えば、特定の光透過率を有し、作物の伸長を阻害する紫
外線の透過を抑制しうる作物栽培用被覆フィルム及びそ
の被覆フィルムを用いてほうれん草を高収量で栽培する
方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 coating film for crop cultivation, more specifically, a coating film having a specific light transmittance and capable of suppressing the transmission of ultraviolet rays that inhibit the elongation of crops. The present invention relates to a covering film for crop cultivation and a method for cultivating spinach in high yield using the covering film.
従来の技術
これまで露地で栽培されていた野菜は、ビニルハウスな
どの雨よけハウスの普及により著しく作柄が安定するよ
うになった。Conventional technology Vegetables, which were previously grown in the open, have become significantly more stable due to the spread of rain shelters such as vinyl greenhouses.
ところで、この雨よけハウスには、ポリ塩化ビニル、ポ
リオレフィンを基材とし、これに使用目的に応じ、耐候
性、保温性、防塵性、耐光性などを付与するための添加
剤を配合した農業用被覆フィルムが用いられているが、
最近紫外線が作物の伸長を阻害する原因となると考えら
れ、紫外線吸収量を配合したいわゆる紫外線除去フィル
ムが提案され、ある程度の効果が認められている。By the way, this rain shelter is made of agricultural covering made of polyvinyl chloride or polyolefin as a base material and containing additives to impart weather resistance, heat retention, dust resistance, light resistance, etc. depending on the purpose of use. Although film is used,
Recently, it has been thought that ultraviolet rays are a cause of inhibiting the growth of crops, so a so-called ultraviolet ray removal film containing a UV absorbing amount has been proposed, and has been found to be effective to some extent.
しかしながら、この紫外線除去フィルムにおいて、紫外
線の除去率があまり大きくなると、今度は日照不足を生
じ、かえって収穫量の減少をもたらす。However, if the ultraviolet ray removal rate of this ultraviolet ray removal film becomes too high, a lack of sunlight will occur, resulting in a decrease in yield.
したがって、紫外線の透過を適度に抑制し、作物の収穫
量を増大しうる農業用被覆フィルムの開発が要望されて
いる。Therefore, there is a need for the development of an agricultural coating film that can moderately suppress the transmission of ultraviolet rays and increase the yield of crops.
発明が解決しようとする課題
本発明は、紫外線の透過を適当にカントすると同時にそ
の過度のカットにより日照不足を生じないような農業用
被覆フィルムを提供し、かつそれを用いて高い収穫量で
作物を栽培することを目的としてなされたものである。Problems to be Solved by the Invention The present invention provides an agricultural covering film that can properly cut the transmission of ultraviolet rays and at the same time does not cause insufficient sunlight due to excessive cutting, and can be used to grow crops with high yields. It was created for the purpose of cultivating.
課題を解決するための手段
本発明者らは、農業用被覆フィルムについて種々研究を
重ねた結果、基材樹脂に対し、波長３５０〜３７０ｎｍ
の光の平均透過率が１５％未満、好ましくは１０％以下
で、波長３００〜３３０ｎｍの光の平均透過率が１５〜
４０％になるように、紫外線吸収剤の種類及び含有量を
選択して配合した素材で形成されたフィルムを用いると
、作物特にほうれん草やトマトの品質、収量を向上させ
ることを見出し、この知見に基づいて本発明をなすに至
った。Means for Solving the Problems As a result of various studies on agricultural coating films, the present inventors found that a wavelength of 350 to 370 nm for base resin.
The average transmittance of light with a wavelength of 300 to 330 nm is less than 15%, preferably 10% or less, and the average transmittance of light with a wavelength of 300 to 330 nm is 15 to 330 nm.
We discovered that using a film made of a material with a selected type and content of UV absorbers such that the UV absorber content is 40% can improve the quality and yield of crops, especially spinach and tomatoes. Based on these findings, the present invention has been completed.
すなわち、本発明は、紫外線吸収剤を含む基材樹脂から
成り、波長３５０〜３７０ｎｍの光の平均透過率２０％
未満、波長３００〜３３０ｎｍの光の平均透過率ｉ０〜
４０％を有し、かつ後者が前者よりも大きいことを特徴
とする作物栽培用被覆フィルム及びそれで被覆されたハ
ウス内でほうれん草を栽培する方法を提供するものであ
る。That is, the present invention is made of a base resin containing an ultraviolet absorber, and has an average transmittance of 20% for light with a wavelength of 350 to 370 nm.
average transmittance of light with a wavelength of 300 to 330 nm i0~
40%, and the latter is larger than the former, and a method for cultivating spinach in a greenhouse covered with the film.
本発明において用いられる基材樹脂は、一般に農業用被
覆フィルムの基材として用いられている合成樹脂の中か
ら任意に選ぶことができる。このような合成樹脂として
は、例えばポリ塩化ビニル、ポリエチレン、ポリプロピ
レン、ポリブテン、ポリ塩化ビニリデン又はこれらの混
合物などを挙げることができる。The base resin used in the present invention can be arbitrarily selected from synthetic resins commonly used as base materials for agricultural coating films. Examples of such synthetic resins include polyvinyl chloride, polyethylene, polypropylene, polybutene, polyvinylidene chloride, and mixtures thereof.
本発明の被覆フィルムには紫外線吸収剤を含有させるこ
とが必要であるが、この紫外線吸収剤としては、ベンゾ
フェノン系又はベンゾトリアゾール系紫外線吸収剤が好
適である。このベンゾフェノン系紫外線吸収剤の例とし
ては、２，２′−ジヒドロキシ−４，４１−ジメトキシ
ベンゾフェノン、２−ヒドロキシ−４−ｎ−オクトキシ
ベンゾフェノン、２−ヒドロキシ−４−オクタデシロキ
シベンゾフェノン、２．２’、４．４’−テトラヒドロ
キシベンゾフェノンなどを、またベンゾトリアゾール系
紫外線吸収剤の例としては、２−（２’−ヒドロキシ−
３’、５’ −ジ第三ブチルフェニル）ベンゾトリアゾ
ール、２−（２′−ヒドロキシ−３′−第三ブチル−５
′−メチルフェニル）−５−クロロベンゾトリアゾール
、２−（２’−ヒドロキシ−３’ 、５’−ジ第三ブチ
ルフェニル）−５−クロロベンゾトリアゾールなどを、
さらにナフタリミド系紫外線吸収剤としては市販されて
いるバイオレット５７０ （ＢＡＳＦジャパン社）をそ
れぞれ挙げることができるが、特に好ましいのは２．２
’ −ジヒドロキシ−４，４′−ジメトキシベンゾフェ
ノンである。The coated film of the present invention needs to contain an ultraviolet absorber, and as this ultraviolet absorber, benzophenone-based or benzotriazole-based ultraviolet absorbers are suitable. Examples of the benzophenone ultraviolet absorber include 2,2'-dihydroxy-4,41-dimethoxybenzophenone, 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-octadecyloxybenzophenone, 2. Examples of benzotriazole ultraviolet absorbers include 2',4,4'-tetrahydroxybenzophenone and 2-(2'-hydroxy-
3',5'-di-tert-butylphenyl)benzotriazole, 2-(2'-hydroxy-3'-tert-butyl-5
'-methylphenyl)-5-chlorobenzotriazole, 2-(2'-hydroxy-3',5'-di-tert-butylphenyl)-5-chlorobenzotriazole, etc.
Furthermore, commercially available Violet 570 (BASF Japan) can be mentioned as a naphthalimide ultraviolet absorber, but 2.2 is particularly preferable.
'-dihydroxy-4,4'-dimethoxybenzophenone.
これらの紫外線吸収剤は単独で用いてもよいし、また２
種以上組み合わせて用いてもよい。含有量はフィルム厚
に応じて増減されるが、通常は基材樹脂に基づきＯ３ｌ
〜１．５重量％の範囲が適当である。These ultraviolet absorbers may be used alone or in combination with
You may use it in combination of more than one kind. The content is increased or decreased depending on the film thickness, but it is usually O3L based on the base resin.
A range of 1.5% by weight is suitable.
本発明の被覆フィルムには、所望に応じ通常の農業用被
覆フィルムに慣用されている添加剤、例えば可塑剤、安
定剤、酸化防止剤、難燃剤、帯電防止剤、滑剤、防霧剤
、防滴剤、ブロッキング防止剤、保温剤、防かび剤、着
色剤などを配合することができる。The coated film of the present invention may optionally contain additives conventionally used in conventional agricultural coated films, such as plasticizers, stabilizers, antioxidants, flame retardants, antistatic agents, lubricants, antifogging agents, and antifogging agents. Drops, anti-blocking agents, heat insulating agents, fungicides, coloring agents, etc. can be added.
本発明の被覆フィルムは、常法に従って製造することが
できるが、膜厚としては、０．０３〜０ 、２ｍｍの範
囲が適当である。The coated film of the present invention can be manufactured according to a conventional method, but the film thickness is suitably in the range of 0.03 to 0.2 mm.
本発明の被覆フィルムは、製膜後において、波長３５０
〜３７０ｎｍの光の平均透過率が２０％未満、好ましく
は１５％未満で、かつ波長３００〜３３０ｎｍの光の平
均透過率が１０〜４０％、好ましくは１５〜４０％の範
囲にあることが必要である。ここで光の平均透過率とは
、入射光量Ｔ１に対する全光線透過量Ｔ！の百分比Ｔｚ
／ ’ｒ、 Ｘ １００を各波長にわたって求め３５０
〜３７０ｎｍの範囲の平均値、又は３００〜３３０ｎｍ
の範囲の平均値として計算したものである。The coated film of the present invention has a wavelength of 350 after film formation.
It is necessary that the average transmittance of light with a wavelength of ~370 nm is less than 20%, preferably less than 15%, and the average transmittance of light with a wavelength of 300 to 330 nm is in the range of 10 to 40%, preferably 15 to 40%. It is. Here, the average transmittance of light means the total light transmission amount T! with respect to the incident light amount T1! Percentage of Tz
/ 'r, X 100 over each wavelength and 350
Average value in the range ~370 nm, or 300-330 nm
It is calculated as the average value of the range.
この本発明の被覆フィルムには、所望に応じ公知の方法
に従って、防塵処理を施すことができる。The coated film of the present invention can be subjected to dustproof treatment according to a known method, if desired.
次に、本発明の被覆フィルムを用いて作物を栽培する方
法について説明する。Next, a method for cultivating crops using the coating film of the present invention will be explained.
通常の雨よけハウスの天井面及び側壁面にわたってこの
被覆フィルムを張設し、内部の土壌面に所要の作物を播
種する。このようにして作物が発芽し、所要の大きさに
生育するまで栽培し、収穫する。栽培期間はほうれん草
を例にとると、播種から収穫まで、時期により若干異な
るが２７〜４０日程度である。This covering film is stretched over the ceiling and side walls of a conventional rain shelter, and desired crops are sown on the soil surface inside. In this way, the crops are cultivated until they germinate, grow to the desired size, and are harvested. Taking spinach as an example, the cultivation period from sowing to harvest is approximately 27 to 40 days, although it varies slightly depending on the season.
発明の効果
本発明の被覆フィルムを用いて形成されたノ１ウス内で
作物栽培を行うとこれまで知られていた農業用被覆フィ
ルムを用いた場合に比べ、収穫量は１．２〜１．６倍に
なる上に、害虫例えばアブラムシの防除にも有効である
という予想外の効果が得られる。Effects of the Invention When crops are cultivated in a cage formed using the coating film of the present invention, the yield is 1.2 to 1.5% higher than when using conventionally known agricultural coating films. In addition to being 6 times more effective, it also has the unexpected effect of being effective in controlling pests such as aphids.
実施例 次に、実施例により本発明をさらに詳細に説明する。Example Next, the present invention will be explained in more detail with reference to Examples.
実施例１ 被覆用フィルムの製造
ポリ塩化ビニル１００重量部に、紫外線吸収剤として２
．２′−ジヒドロキシ−４，４′−ジメトキシベンゾフ
ェノン０．３重量部を加え、十分に混練したのちＴダイ
法により厚さ０−０７５ｍｍのフィルムに加工し ｔこ
。Example 1 Production of coating film 100 parts by weight of polyvinyl chloride was added with 2 parts as an ultraviolet absorber.
．． After adding 0.3 parts by weight of 2'-dihydroxy-4,4'-dimethoxybenzophenone and thoroughly kneading, the mixture was processed into a film having a thickness of 0 to 075 mm by the T-die method.
このものについて、光の透過率変化を測定した結果を図
面に曲線Ａとして示す。なお比較のために、厚さ０．０
７５ｍｍの市販農業用被覆フィルムＢ（塩化ビニル樹脂
１００重量部当り紫外線吸収剤として２−ヒドロキシ−
メトキシベンゾフェノン０．１重量部を配合）及び厚さ
０−０７５ｍｍの市販農業用被覆フィルムＣ（塩化ビニ
ル樹脂１００重量部当り紫外線吸収剤として２−（２’
−ヒドロキシ−３’ 、５’−ジ第三ブチルフェニル）
−５−クロロベンゾトリアソール１重量部と紫系色素少
量を配合）についての透過率変化を曲線Ｂ及び曲線Ｃと
して併記した。The results of measuring changes in light transmittance for this product are shown as curve A in the drawing. For comparison, the thickness is 0.0
75 mm commercially available agricultural coating film B (2-hydroxy-
0.1 part by weight of methoxybenzophenone) and a commercially available agricultural coating film C having a thickness of 0 to 075 mm (2-(2'
-hydroxy-3',5'-di-tert-butylphenyl)
The changes in transmittance for the mixture containing 1 part by weight of -5-chlorobenzotriazole and a small amount of violet dye are also shown as curves B and C.
実施例２ はうれん草栽培
実施例１で得た被覆フィルムを用いて雨よけハウスを形
成し、その中でほうれん草の栽培を行っＩこ。Example 2 Spinach Cultivation In Example 1, the coating film obtained in Example 1 was used to form a rain shelter, and spinach was cultivated in the house.
このハウス内の土壌分析値を法要に示す。The soil analysis values in this greenhouse will be shown in the memorial service.
本発明の被覆フィルムと市販品２種を用い、気温上昇期
、梅雨期及び秋雨期の年間３回にわたって栽培試験を行
った結果を以下に示す。Using the coating film of the present invention and two commercially available products, cultivation tests were conducted three times a year during the temperature rise season, the rainy season, and the autumn rainy season, and the results are shown below.
（１） 気温上昇期播種の場合 ■品 種：サンライト ■播 種：４月２０日 ■収 穫＝５月３１日 ■生育日数＝４１日 （２） 梅雨期播種の場合 ■品 種：に−５０００ ■播 種：６月１７日 ■収 穫ニア月１４日 ■生育日数：２７日 （３） 秋雨期播種の場合 ■品 種：バロック ■播 種：９月４日 ■収 穫：１０月１１日 ■生育日数：３７日(1) For sowing during rising temperatures ■Product species: Sunlight ■Sowing seeds: April 20th ■Harvest = May 31st ■Number of growing days = 41 days (2) For rainy season sowing ■Product species: Ni-5000 ■Sowing seeds: June 17th ■Harvesting 14th day of the month ■Number of growing days: 27 days (3) For autumn rainy season sowing ■Product species: Baroque ■Sowing seeds: September 4th ■Harvest: October 11th ■Number of growing days: 37 days
図面は、 本発明の被覆フィルム及び市販品２種 の波長に対する光透過率の変化を示すグラフである。 The drawing is Coated film of the present invention and two commercially available products 3 is a graph showing changes in light transmittance with respect to wavelength.
Claims (1)
〜３７０ｎｍの光の平均透過率２０％未満、波長３００
〜３３０ｎｍの光の平均透過率１０〜４０％を有し、か
つ後者が前者よりも大きいことを特徴とする作物栽培用
被覆フィルム。 ２ 波長３５０〜３７０ｎｍの光の平均透過率が１５％
未満、波長３００〜３３０ｎｍの光の平均透過率が１５
〜４０％である請求項１記載の作物栽培用被覆フィルム
。 ３ 紫外線吸収剤がベンゾフェノン系、ベンゾトリアゾ
ール系又はナフタリミド系紫外線吸収剤である請求項１
記載の作物栽培用被覆フィルム。 ４ ベンゾフェノン系紫外線吸収剤が２，２′−ジヒド
ロキシ−４，４′−ジメトキシベンゾフェノンである請
求項３記載の作物栽培用被覆フィルム。 ５ 請求項１記載の被覆フィルムで被覆されたハウス内
においてほうれん草を播種し、育成することを特徴とす
るほうれん草の栽培方法。[Claims] 1. Made of a base resin containing an ultraviolet absorber, with a wavelength of 350
Average transmittance of ~370nm light less than 20%, wavelength 300
A covering film for crop cultivation, characterized in that it has an average transmittance of 10 to 40% for light of ~330 nm, the latter being larger than the former. 2 Average transmittance of light with a wavelength of 350 to 370 nm is 15%
The average transmittance of light with a wavelength of 300 to 330 nm is less than 15
The coating film for crop cultivation according to claim 1, wherein the coating film has a content of 40%. 3.Claim 1, wherein the ultraviolet absorber is a benzophenone-based, benzotriazole-based, or naphthalimide-based ultraviolet absorber.
A covering film for growing crops as described. 4. The coating film for crop cultivation according to claim 3, wherein the benzophenone ultraviolet absorber is 2,2'-dihydroxy-4,4'-dimethoxybenzophenone. 5. A method for cultivating spinach, which comprises sowing and growing spinach in a greenhouse covered with the coating film according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1268235A JP2771637B2 (en) | 1989-10-17 | 1989-10-17 | Crop cultivation coated film and cultivation method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1268235A JP2771637B2 (en) | 1989-10-17 | 1989-10-17 | Crop cultivation coated film and cultivation method using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03130021A true JPH03130021A (en) | 1991-06-03 |
| JP2771637B2 JP2771637B2 (en) | 1998-07-02 |
Family
ID=17455784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1268235A Expired - Lifetime JP2771637B2 (en) | 1989-10-17 | 1989-10-17 | Crop cultivation coated film and cultivation method using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2771637B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011092058A (en) * | 2009-10-28 | 2011-05-12 | Okamoto Kk | Agricultural polyolefin-based resin film, and method for cultivating tomato |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157881A (en) * | 1982-03-15 | 1983-09-20 | Showa Kagaku Kogyo Kk | Ultraviolet light absorber composition in form of aqueous dispersion |
| JPS6425779A (en) * | 1987-04-11 | 1989-01-27 | Lederle Japan Ltd | (1r,5s,6s)-2-substituted-thio-6-((r)-1-hydroxyethyl)-1-methyl -carbapenem-3-carboxylic acid derivative |
| JPS6432202A (en) * | 1987-07-29 | 1989-02-02 | Fujitsu Ltd | Dimming transparent material |
-
1989
- 1989-10-17 JP JP1268235A patent/JP2771637B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58157881A (en) * | 1982-03-15 | 1983-09-20 | Showa Kagaku Kogyo Kk | Ultraviolet light absorber composition in form of aqueous dispersion |
| JPS6425779A (en) * | 1987-04-11 | 1989-01-27 | Lederle Japan Ltd | (1r,5s,6s)-2-substituted-thio-6-((r)-1-hydroxyethyl)-1-methyl -carbapenem-3-carboxylic acid derivative |
| JPS6432202A (en) * | 1987-07-29 | 1989-02-02 | Fujitsu Ltd | Dimming transparent material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011092058A (en) * | 2009-10-28 | 2011-05-12 | Okamoto Kk | Agricultural polyolefin-based resin film, and method for cultivating tomato |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2771637B2 (en) | 1998-07-02 |
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