JP3577787B2 - How to increase potato sales - Google Patents
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- JP3577787B2 JP3577787B2 JP15795295A JP15795295A JP3577787B2 JP 3577787 B2 JP3577787 B2 JP 3577787B2 JP 15795295 A JP15795295 A JP 15795295A JP 15795295 A JP15795295 A JP 15795295A JP 3577787 B2 JP3577787 B2 JP 3577787B2
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- 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
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- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【0001】
【産業上の利用分野】
本発明はジャガイモの増収方法に関するものである。
【0002】
【従来の技術】
一般に、ジャガイモの収量を増加させる場合、窒素、燐酸、カリ等の肥料の施用、育種法による多収性優良品種の選抜が知られている。
【0003】
【発明が解決しようとする課題】
しかしながら、肥料の施用の場合、過度の施用によりジャガイモの収量が減少することがあり、肥料の効果を最大限発揮させるには栽培土壌に適合した適切な管理が必須である。また育種法による多収性優良品種の選抜の場合、年単位の時間、多くの労力を必要とするが、必ずしも飛躍的な増収は期待できない。仮に優良品種が出ても、栽培地域によって適応性が異なるため広範囲な地域において該品種を利用することは容易でない。
【0004】
【課題を解決するための手段】
このような状況下で、本発明者らは、鋭意検討を行った結果、ある種の植物生長調節剤を、特定な時期のジャガイモ植物に茎葉散布することによって、栽培地域に関係なくしかも容易にジャガイモの収量を著しく向上させることができることを見い出し本発明を完成させた。
すなわち、本発明は、非植物ホルモン型の植物生長調節剤を開花期又は塊茎肥大期にあるジャガイモ植物に茎葉散布することを特徴とするジャガイモの増収方法(以下、本発明方法と記す。)を提供するものである。
【0005】
以下、さらに詳細に本発明を説明する。
本発明の対象となる植物は、ジャガイモ植物である。ジャガイモ植物の代表的な品種としては、例えば、「男爵」、「メークイン」、「馬鈴薯農林1号」、「デジマ」、「ワセシロ」、「トヨシロ」、「ユキジロ(馬鈴薯農林13号)」、「ホッカイコガネ」、「メイホウ」、「ニシユタカ」、「紅丸」、「タチバナ(馬鈴薯農林7号)」、「シマバラ(馬鈴薯農林11号)」等をあげることができる。
【0006】
本発明で用いられる薬剤は、「非植物ホルモン型の植物生長調節剤」である。ここで、非植物ホルモン型の植物生長調節剤とは、オーキシン作用を示すようなフェノキシ酢酸、4−クロロ−2−ヒドロキシフェノキシ酢酸、インドール酢酸、インドール酪酸、ナフタリン酢酸及びエチクローゼ(フィガロン)、サイトカイニン作用を示すようなベンジルアデニン、タバコの腋芽発生抑制、ジャガイモの発芽防止、ダイコン等の抽だい防止等の作用を示すようなマレイン酸ヒドラジド、ブドウの果実着色増進、果実成熟促進等の作用を示すようなダミノジド(B−ナイン、B995)、開花促進、果実成熟促進等の作用を示すようなエセホン、野菜類の生長促進、花卉類の開花促進、ブドウの単為結実促進等の作用を示すようなジベレリン、花卉類の開花促進、ナシ、アーモンド、ブドウ、トマト等の着実促進等の作用を示すようなクロルメクアット(CCC)等の植物ホルモン作用を有するような化合物ではない植物生長調節剤のことを意味する。例えば、代表的な化合物としては、例えば、(E)−1−(4−クロロフェニル)−4,4−ジメチル−2−(1,2,4−トリアゾール−1−イル)−1−ペンテン−3−オール(特開昭56−25105号公報に記載される化合物)もしくはその塩、(2RS,3RS)−1−(4−クロロフェニル)−4,4−ジメチル−2−(1H−1,2,4−トリアゾール−1−イル)ペンタン−3−オール(特開昭53−28170号公報に記載される化合物)もしくはその塩、(E)−1−シクロヘキシル−4,4−ジメチル−2−(1H−1,2,4−トリアゾール−1−イル)−1−ペンテン−3−オール(特開昭55−111477号公報に記載される化合物)もしくはその塩、rel−(1R,2R,6S,7R,8R,11S)−5−(4−クロロフェニル)−3,4,5,9,10−ペンタアザテトラシクロ[5.4.1.O2,6 .O8,11]ドデカ−3,9−ジエン(Short Review of Herbicides & PGRs,1990,保土ケ谷化学(株)出版,第316頁に記載の化合物)もしくはその塩等のトリアゾール系化合物や4’−クロロ−2’−(α−ヒドロキシベンジル)イソニコチンアニリド(Short Review of Herbicides & PGRs,1990,保土ケ谷化学(株)出版,第306頁に記載の化合物)等のイソニコチンアニリド系化合物や(RS)−2−メチル−1−ピリミジン−5−イル−1−(4−トリフルオロメトキシフェニル)プロパン−1−オール(米国特許第4002628号及びShort Review of Herbicides & PGRs,1990,保土ケ谷化学(株)出版,第318頁に記載される化合物)もしくはその塩、α−シクロプロピル−4−メトキシ−α−(ピリミジン−5−イル)−ベンジルアルコール(英国特許第1218623号及びShort Review of Herbicides & PGRs,1990,保土ケ谷化学(株)出版,第318頁に記載される化合物)もしくはその塩等のピリミジン系化合物等があげられる。これら薬剤は一種単独でも二種以上の混合物であってもよい。もちろん、光学活性な異性体を有する化合物においては、植物生長調節活性を有する光学活性な異性体を用いることもできる。
【0007】
上記のような非植物ホルモン型の植物生長調節剤は、通常、液体担体、固体担体、界面活性剤、その他の製剤用補助剤を用いて乳剤、液剤、水和剤、懸濁剤等に製剤して用いられる。これらの製剤には、有効成分が重量比で、通常、約0.00001〜約99.9%含有される。
【0008】
用いられる液体担体としては、例えば、キシレン、メチルナフタレン等の芳香族炭化水素、イソプロパノール、エチレングリコール、セロソルブ等のアルコール類、アセトン、シクロヘキサノン、イソホロン等のケトン類、大豆油、綿実油等の植物油、ジメチルスオルホキシド、アセトニトリル、液状複合肥料、水等をあげることができる。
固体担体としては、例えば、カオリンクレー、アタパルジャイトクレー、ベントナイト、酸性白土、パイロフィライト、タルク、珪藻土、方解石、クルミ殻粉、尿素、硫酸アンモニウム、化成肥料、合成含水酸化珪素等の微粉末あるいは粒状物があげられる。
【0009】
乳化、分散、湿潤、展開、結合、崩壊性調節、有効成分安定化、流動性改良、防錆等の目的で使用される界面活性剤は、非イオン性、陰イオン性、陽イオン性および両性イオン性のいづれのものをも使用しうるが、通常は非イオン性および/または陰イオン性のものが使用される。代表的な非イオン性界面活性剤としては、例えば、ポリオキシエチレンアルキルエーテル、ポリオキシエチレンアルキルアリールエーテル、ポリオキシエチレンポリオキシプロピレンブロックコポリマー、ソルビタン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル等をあげることができる。また代表的な陰イオン性界面活性剤としては、例えば、アルキル硫酸エステル塩、アルキル(アリール)スルホン酸塩、ジアルキルスルホこはく酸塩、ポリオキシエチレンアルキルアリールエーテルリン酸エステル塩等があげられる。
【0010】
その他の製剤用補助剤としては、リグニンスルホン酸塩、アルギン酸塩、ポリビニールアルコール、アラビアガム、CMC(カルボキシメチルセルロース)、PAP(酸性リン酸イソプロピル)等をあげることができる。
【0011】
このようにして製剤された非植物ホルモン型の植物生長調節剤の処理濃度や処理量は、該植物生長調節剤の種類等によりことなるが、通常、有効成分が約0.01〜約1000ppmの溶液を、有効成分量として約0.1〜約50000g/ha、好ましくはトリアゾール系化合物の場合には、約0.1〜約5000g/ha、イソニコチンアニリド系化合物の場合には、約1〜約50000g/ha、ピリミジン系化合物の場合には、約0.1〜約5000g/haの割合で施用する。もちろん、非植物ホルモン型の植物生長調節剤を処理する場合には、本発明の効果を妨げない範囲において、肥料、殺虫剤、殺菌剤、除草剤、その他の植物生長調節剤との混合も可能である。
【0012】
つぎに、本発明における薬剤散布時期、すなわち「開花期又は塊茎肥大期」について説明する。
本発明では、上記のような植物生長調節剤を、開花期又は塊茎肥大期にあるジャガイモ植物に茎葉散布することが必須である。
ところで、ジャガイモ植物は栽培期間中に開花期を有する場合と有さない場合がある。栽培期間中に開花期を有する場合、本発明における薬剤散布時期は開花期である。なかでも開花初期及び開花盛期を好ましくあげることができる。ジャガイモの開花期の期間は、天候、品種、栽培条件等によって約7週間にわたるものもあるが、通常、約3週間から約4週間である。例えば、種イモ植付け後25日から75日が開花期に相当する場合、前半の約20日間が開花初期に相当し、次の約10日間が開花盛期に相当する。開花期を有さない場合、本発明における薬剤散布時期は塊茎肥大期である。なかでも塊茎肥大初期及び塊茎肥大中期を好ましくあげることができる。ジャガイモは、茎が塊状に肥大し、貯蔵組織として発達したものである。したがって、ジャガイモ植物は地上部の生育とともに茎の塊茎化過程が収量の決定に重要である。ジャガイモ植物の塊茎は種イモ植付け後、匐枝形成期、匐枝伸長期、塊茎形成期、塊茎肥大期(塊茎肥大初期、塊茎肥大中期、塊茎肥大後期)、塊茎完成期を経る。そして本発明でいう塊茎肥大期の期間は、天候、品種、栽培条件等によっても異なるが、一般的には種イモ植付け後約25〜75日の間である。例えば、種イモ植付け後25日から75日が塊茎肥大期に相当する場合、前半の約20日間が塊茎肥大初期に相当し、次に約10日間が塊茎肥大中期に相当する。
【0013】
本発明の薬剤処理方法は、噴霧、散粉等による茎葉散布である。
【0014】
【実施例】
以下、本発明を製剤例および試験例によっさらに詳しく説明するが、本発明はこれらに限定されるものではない。
まず、製剤例を示す。これらの製剤例中、部は重量部を表すものである。
【0015】
製剤例1 (乳剤)
(E)−1−(4−クロロフェニル)−4,4−ジメチル−2−(1,2,4−トリアゾール−1−イル)−1−ペンテン−3−オール(以下、化合物Aと記す。)5部、ポリオキシエチレンスチリルフェニルエーテル10部およびシクロヘキサノン50部にキシレンを加えて全体を100部とし、攪拌混合することにより乳剤を得る。
【0016】
製剤例2 (水和剤)
(2RS,3RS)−1−(4−クロロフェニル)−4,4−ジメチル−2−(1H−1,2,4−トリアゾール−1−イル)ペンタン−3−オール(以下、化合物Bと記す。)10部、ラウリル硫酸ナトリウム5部および芳香族スルホン酸塩のホルマリン縮合物2部にカオリンクレーを加えて全体を100部とし、ジュースミキサーでよく混合した後ジェットミルで微粉砕することにより水和剤を得る。
【0017】
製剤例3 (乳剤)
3,5−ジオキソ−4−プロピオニルシクロヘキサンカルボン酸(以下、化合物Cと記す。)5部、ポリオキシエチレンスチリルフェニルエーテル10部およびシクロヘキサノン50部にキシレンを加えて全体を100部とし、攪拌混合することにより乳剤を得る(なお、化合物Cは特開昭59−196840号公報に記載される。)。
【0018】
製剤例4 (水和剤)
4’−クロロ−2’−(α−ヒドロキシベンジル)イソニコチンアニリド(以下、化合物Dと記す。)10部、ラウリル硫酸ナトリウム5部および芳香族スルホン酸塩のホルマリン縮合物2部にカオリンクレーを加えて全体を100部とし、ジュースミキサーでよく混合した後ジェットミルで微粉砕することにより水和剤を得る。
【0019】
製剤例5 (水和剤)
α−シクロプロピル−4−メトキシ−α−(ピリミジン−5−イル)−ベンジルアルコール(以下、化合物Eと記す。)10部、ラウリル硫酸ナトリウム5部および芳香族スルホン酸塩のホルマリン縮合物2部にカオリンクレーを加えて全体を100部とし、ジュースミキサーでよく混合した後ジェットミルで微粉砕することにより水和剤を得る。
次に、試験例を示す。
【0020】
試験例1
圃場においてジャガイモ(品種、デジマ)を栽培し、塊茎肥大初期(種イモ植付け後35日)に、製剤例2に準じて水和剤に調製した化合物Aの10ppm溶液を、200L/haの薬剤処理量で茎葉散布した。種イモ植付け後から102日間栽培した後、収量を調査した。収量は一株当たりの上いも(1個重30g以上)数と上いも1個平均重の積で示した。
収量の調査結果を表1に示す。なお、収量は対照区(無処理区)を100%とした相対値で示した。
表1から明らかなように本発明区では対照区(無処理区)と比較して、高い増収効果を示した。
【0021】
【表1】
【0022】
試験例2
薬剤処理濃度10ppm溶液を用いる代わりに20ppm溶液を用いること以外は試験例1と同様な方法によって試験した。その結果を表2に示す。
表2から明らかなように本発明区では対照区(無処理区)と比較して、上記の試験例1と同様にきわめて高い増収効果を示した。
【0023】
【表2】
【0024】
試験例3
圃場においてジャガイモ(品種、メイクイーン)を栽培し、開花期(種イモ植付け後55日)に、製剤例2に準じて水和剤に調製した化合物Aの5ppm溶液を、200L/haの薬剤処理量で茎葉散布した。種イモ植付け後から119日間栽培した後、収量を調査した。収量は一株当たりの上いも(1個重30g以上)数と上いも1個平均重の積で示した。
収量の調査結果を表3に示す。なお、収量は対照区(無処理区)を100%とした相対値で示した。
表3から明らかなように本発明区では対照区(無処理区)と比較して、きわめて高い増収効果を示した。
【0025】
【表3】
【0026】
試験例4
薬剤処理濃度5ppm溶液を用いる代わりに10ppm溶液を用いること以外は試験例3と同様な方法によって試験した。その結果を表4に示す。
表4から明らかなように本発明区では対照区(無処理区)と比較して、上記の試験例3と同様にきわめて高い増収効果を示した。
【0027】
【表4】
【0028】
試験例5
化合物A[薬剤処理濃度(ppm):10]の代わりに化合物B[薬剤処理濃度(ppm):500]を用いること以外は試験例4と同様な方法によって試験した。その結果、同様な増収効果が認められた。
【0029】
試験例6
圃場においてジャガイモ(品種、メークイン)を栽培し、開花期(種イモ植付け後60日)に、製剤例2に準じて水和剤に調製した化合物Cの50ppm溶液、化合物Dの5000ppm溶液又は化合物Eの100ppm溶液を、200L/haの薬剤処理量で茎葉散布する。種イモ植付け後から110日間栽培した後、収量を調査する。収量は一株当たりの上いも(1個重30g以上)数と上いも1個平均重の積として表し、対照区(無処理区)を100%とした相対値を算出することにより、増収効果を確認する。
【0030】
【発明の効果】
本発明により、容易にジャガイモの収量を著しく向上させることが可能になった。[0001]
[Industrial applications]
The present invention relates to a method for increasing the yield of potato.
[0002]
[Prior art]
Generally, when increasing the yield of potatoes, it is known to apply fertilizers such as nitrogen, phosphoric acid and potassium, and to select high-yielding varieties by a breeding method.
[0003]
[Problems to be solved by the invention]
However, in the case of fertilizer application, potato yield may be reduced due to excessive application, and proper management appropriate to the cultivated soil is essential to maximize the effect of the fertilizer. Also, in the case of selecting high-yielding varieties by the breeding method, it takes a long time per year and a lot of labor, but a dramatic increase in the yield cannot always be expected. Even if a superior variety is produced, it is not easy to use the variety in a wide area because the adaptability differs depending on the cultivation area.
[0004]
[Means for Solving the Problems]
Under such circumstances, the present inventors have conducted intensive studies, and as a result, by spraying a certain type of plant growth regulator on foliage of potato plants at a specific time, regardless of the cultivation area and easily. It has been found that the yield of potatoes can be significantly improved, and the present invention has been completed.
That is, the present invention provides a method of increasing potato yield (hereinafter referred to as the method of the present invention), which comprises foliar application of a non-plant hormone type plant growth regulator to a potato plant in the flowering or tuber hypertrophy stage. To provide.
[0005]
Hereinafter, the present invention will be described in more detail.
The plants that are the subject of the present invention are potato plants. Representative varieties of potato plants include, for example, “Baron”, “Make-in”, “Potato Norin No. 1”, “Digima”, “Waseshiro”, “Toyoshiro”, “Yukijiro (Potato Norin No. 13)”, “ "Hokkaikogane", "Meihou", "Nishiyutaka", "Red Maru", "Tachibana (Potato Norin 7)", "Shimabara (Potato Norin 11)" and the like.
[0006]
The drug used in the present invention is a “non-plant hormone-type plant growth regulator”. Here, the non-phytohormone-type plant growth regulator refers to phenoxyacetic acid, 4-chloro-2-hydroxyphenoxyacetic acid, indoleacetic acid, indolebutyric acid, naphthaleneacetic acid and echicrose (figalon), which exhibit auxin action. Benzyladenine, which inhibits the development of axillary buds in tobacco, prevents germination of potatoes, prevents the extraction of radish, etc. Daminozide (B-Nine, B995), Ethephon which has the effect of promoting flowering, fruit maturation, etc., has the effect of promoting the growth of vegetables, the promotion of flowering of flowers, the promotion of parthenogenesis of grapes, etc. Gibberellin, promotes flowering of flowers, promotes steady growth of pears, almonds, grapes, tomatoes, etc. It means a plant growth regulator that is not a compound having a plant hormone action such Suyo a chlorine wound at (CCC). For example, typical compounds include, for example, (E) -1- (4-chlorophenyl) -4,4-dimethyl-2- (1,2,4-triazol-1-yl) -1-pentene-3 -Ol (a compound described in JP-A-56-25105) or a salt thereof, (2RS, 3RS) -1- (4-chlorophenyl) -4,4-dimethyl-2- (1H-1,2,2 4-triazol-1-yl) pentan-3-ol (compound described in JP-A-53-28170) or a salt thereof, (E) -1-cyclohexyl-4,4-dimethyl-2- (1H -1,2,4-triazol-1-yl) -1-penten-3-ol (a compound described in JP-A-51-111777) or a salt thereof, rel- (1R, 2R, 6S, 7R) , 8R, 11S)- - (4-chlorophenyl) -3,4,5,9,10- pentaaza tetracyclo [5.4.1. O 2,6 . O 8, 11] dodeca-3,9-diene (Short Review of Herbicides & PGRs, 1990, Hodogaya Chemical Co., publications, compounds listed in 316 pages) or triazole compound and 4'-chloro its salts Isonicotine anilide-based compounds such as -2 '-(α-hydroxybenzyl) isonicotinanilide (Short Review of Herbicides & PGRs, 1990, page 306, published by Hodogaya Chemical Co., Ltd.) and (RS)- 2-Methyl-1-pyrimidin-5-yl-1- (4-trifluoromethoxyphenyl) propan-1-ol (U.S. Pat. No. 4,002,628 and Short Review of Herbicides & PGRs, 1990, Hodogaya Chemical Co., Ltd., On page 318 Compound described above) or a salt thereof, α-cyclopropyl-4-methoxy-α- (pyrimidin-5-yl) -benzyl alcohol (British Patent No. 1218623 and Short Review of Herbicides & PGRs, 1990, Hodogaya Chemical Co., Ltd.) ), Page 318) or pyrimidine compounds such as salts thereof. These agents may be used alone or as a mixture of two or more. Of course, in the compound having an optically active isomer, an optically active isomer having a plant growth regulating activity can also be used.
[0007]
The non-plant hormone-type plant growth regulators as described above are usually formulated into emulsions, solutions, wettable powders, suspensions, etc. using liquid carriers, solid carriers, surfactants, and other formulation auxiliaries. Used as These preparations usually contain about 0.00001 to about 99.9% by weight of an active ingredient.
[0008]
Examples of the liquid carrier used include: aromatic hydrocarbons such as xylene and methylnaphthalene; alcohols such as isopropanol, ethylene glycol and cellosolve; ketones such as acetone, cyclohexanone and isophorone; vegetable oils such as soybean oil and cottonseed oil; and dimethyl. Examples include sulpoxide, acetonitrile, liquid compound fertilizer, water and the like.
As the solid carrier, for example, fine powder or granular material such as kaolin clay, attapulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, walnut shell powder, urea, ammonium sulfate, chemical fertilizer, synthetic hydrous silicon oxide, etc. Is raised.
[0009]
Surfactants used for the purpose of emulsification, dispersion, wetting, spreading, binding, disintegration control, active ingredient stabilization, fluidity improvement, rust prevention, etc. are nonionic, anionic, cationic and amphoteric. Any ionic one may be used, but usually non-ionic and / or anionic ones are used. Representative nonionic surfactants include, for example, polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene polyoxypropylene block copolymer, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, and the like. Can be. Typical anionic surfactants include, for example, alkyl sulfates, alkyl (aryl) sulfonates, dialkyl sulfosuccinates, and polyoxyethylene alkyl aryl ether phosphates.
[0010]
Other auxiliaries for preparations include ligninsulfonate, alginate, polyvinyl alcohol, gum arabic, CMC (carboxymethylcellulose), PAP (acidic isopropyl phosphate) and the like.
[0011]
The concentration and amount of treatment of the non-phytohormone-type plant growth regulator prepared as described above vary depending on the type of the plant growth regulator, etc., but usually the active ingredient is contained in an amount of about 0.01 to about 1000 ppm. The solution is used in an amount of about 0.1 to about 50,000 g / ha as an active ingredient, preferably about 0.1 to about 5000 g / ha in the case of a triazole compound, and about 1 to about 5000 g / ha in the case of an isonicotine anilide compound. About 50,000 g / ha, and in the case of a pyrimidine compound, about 0.1 to about 5000 g / ha. Of course, when a non-plant hormone type plant growth regulator is treated, it can be mixed with fertilizers, insecticides, fungicides, herbicides, and other plant growth regulators as long as the effects of the present invention are not impaired. It is.
[0012]
Next, the time of spraying the drug in the present invention, that is, the “flowering period or tuber hypertrophy period” will be described.
In the present invention, it is essential that the plant growth regulator as described above is foliage-sprayed on a potato plant in the flowering stage or the tuber hypertrophy stage.
By the way, a potato plant may or may not have a flowering period during the cultivation period. When there is a flowering period during the cultivation period, the time of spraying the agent in the present invention is the flowering period. In particular, the early flowering period and the flowering season can be preferably increased. The flowering period of a potato may be about 7 weeks depending on the weather, variety, cultivation conditions and the like, but is usually about 3 to 4 weeks. For example, when 25 to 75 days after planting the seed potato correspond to the flowering period, the first about 20 days correspond to the early flowering period, and the next about 10 days correspond to the flowering season. When there is no flowering period, the application time of the drug in the present invention is the tuber hypertrophy period. Among them, the early stage of tuber hypertrophy and the middle stage of tuber hypertrophy can be preferably mentioned. Potatoes have a large stalk and develop as storage tissue. Therefore, in the potato plant, the process of tuberization of the stem together with the growth of the above-ground part is important for determining the yield. After the seed potato planting, the tubers of the potato plant go through a stalk formation stage, a stalk elongation stage, a tuber formation stage, a tuber enlargement stage (early tuber enlargement stage, a middle tuber enlargement stage, a tuber enlargement late stage), and a tuber completion stage. The term of the tuber enlargement period referred to in the present invention varies depending on the weather, variety, cultivation conditions and the like, but is generally about 25 to 75 days after seed potato planting. For example, when 25 to 75 days after planting of a seed potato correspond to the tuber hypertrophy period, about 20 days in the first half correspond to the initial tuber hypertrophy period, and then about 10 days correspond to the middle tuber hypertrophy period.
[0013]
The chemical treatment method of the present invention is foliage application by spraying, dusting or the like.
[0014]
【Example】
Hereinafter, the present invention will be described in more detail with reference to Formulation Examples and Test Examples, but the present invention is not limited thereto.
First, formulation examples are shown. In these preparation examples, "part" represents "part by weight".
[0015]
Formulation Example 1 (emulsion)
(E) -1- (4-Chlorophenyl) -4,4-dimethyl-2- (1,2,4-triazol-1-yl) -1-penten-3-ol (hereinafter referred to as compound A) Xylene is added to 5 parts, 10 parts of polyoxyethylene styrylphenyl ether and 50 parts of cyclohexanone to make the whole 100 parts, and the mixture is stirred and mixed to obtain an emulsion.
[0016]
Formulation Example 2 (Wettable powder)
(2RS, 3RS) -1- (4-chlorophenyl) -4,4-dimethyl-2- (1H-1,2,4-triazol-1-yl) pentan-3-ol (hereinafter referred to as compound B). ) 10 parts, 5 parts of sodium lauryl sulfate and 2 parts of a formalin condensate of an aromatic sulfonate were mixed with kaolin clay to make the whole 100 parts, mixed well with a juice mixer, and then finely pulverized with a jet mill to hydrate. Get the agent.
[0017]
Formulation Example 3 (emulsion)
Xylene is added to 5 parts of 3,5-dioxo-4-propionylcyclohexanecarboxylic acid (hereinafter, referred to as compound C), 10 parts of polyoxyethylene styrylphenyl ether and 50 parts of cyclohexanone to make the whole 100 parts, and the mixture is stirred and mixed. Thus, an emulsion is obtained (compound C is described in JP-A-59-196840).
[0018]
Formulation Example 4 (Wettable powder)
Kaolin clay was added to 10 parts of 4'-chloro-2 '-(α-hydroxybenzyl) isonicotinanilide (hereinafter referred to as compound D), 5 parts of sodium lauryl sulfate and 2 parts of a formalin condensate of an aromatic sulfonate. In addition, the whole is adjusted to 100 parts, mixed well with a juice mixer and then finely pulverized with a jet mill to obtain a wettable powder.
[0019]
Formulation Example 5 (Wettable powder)
10 parts of α-cyclopropyl-4-methoxy-α- (pyrimidin-5-yl) -benzyl alcohol (hereinafter referred to as compound E), 5 parts of sodium lauryl sulfate and 2 parts of a formalin condensate of an aromatic sulfonate To 100 parts by adding kaolin clay to the mixture, mixed well with a juice mixer, and then finely pulverized with a jet mill to obtain a wettable powder.
Next, test examples will be described.
[0020]
Test example 1
Potatoes (cultivar, digima) are cultivated in a field, and a 10 ppm solution of Compound A prepared as a wettable powder according to Formulation Example 2 at an early stage of tuber hypertrophy (35 days after seeding of potatoes) was treated with 200 L / ha of a drug. The amount of foliage was sprayed. After cultivating for 102 days after planting the seed potato, the yield was investigated. The yield was shown as the product of the number of thighs (30 g or more per piece) and the average weight of one thigh per strain.
Table 1 shows the results of the yield investigation. In addition, the yield was shown as a relative value with the control group (untreated group) being 100%.
As is clear from Table 1, the present invention group showed a higher yield increase effect than the control group (untreated group).
[0021]
[Table 1]
[0022]
Test example 2
The test was performed in the same manner as in Test Example 1 except that a 20 ppm solution was used instead of the 10 ppm solution for chemical treatment. Table 2 shows the results.
As is clear from Table 2, the present invention group showed an extremely high yield increasing effect as compared with the control group (untreated group), similarly to Test Example 1 described above.
[0023]
[Table 2]
[0024]
Test example 3
Potatoes (cultivar, May Queen) are cultivated in a field, and a 5 ppm solution of Compound A prepared as a wettable powder according to Formulation Example 2 at the flowering period (55 days after seeding of potatoes) is treated with 200 L / ha of the drug. The amount of foliage was sprayed. After cultivation for 119 days after the seed potato planting, the yield was investigated. The yield was shown as the product of the number of thighs (30 g or more per piece) and the average weight of one thigh per strain.
Table 3 shows the results of the yield survey. In addition, the yield was shown as a relative value with the control group (untreated group) being 100%.
As is clear from Table 3, the plot of the present invention showed an extremely high effect of increasing the yield as compared with the control plot (untreated plot).
[0025]
[Table 3]
[0026]
Test example 4
The test was conducted in the same manner as in Test Example 3 except that a 10 ppm solution was used instead of a 5 ppm solution with a chemical treatment concentration. Table 4 shows the results.
As is clear from Table 4, the group of the present invention showed an extremely high effect of increasing the yield as compared with the control group (untreated group), similarly to the above-mentioned Test Example 3.
[0027]
[Table 4]
[0028]
Test example 5
The test was conducted in the same manner as in Test Example 4 except that Compound B [drug treatment concentration (ppm): 500] was used instead of Compound A [drug treatment concentration (ppm): 10]. As a result, a similar effect of increasing sales was observed.
[0029]
Test Example 6
Potatoes (cultivar, make-in) are cultivated in the field, and a 50 ppm solution of compound C, a 5000 ppm solution of compound D, or a compound E prepared as a wettable powder according to Formulation Example 2 during the flowering period (60 days after seeding of potatoes) Is sprayed with foliage at a drug throughput of 200 L / ha. After cultivating for 110 days after planting the seed potato, the yield is investigated. Yield is expressed as the product of the number of thighs (30 g or more per plant) and the average weight of one thigh per plant, and the relative increase is calculated by calculating the relative value with the control (untreated) as 100%. Check.
[0030]
【The invention's effect】
According to the present invention, it has become possible to easily improve the yield of potatoes easily.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15795295A JP3577787B2 (en) | 1995-06-23 | 1995-06-23 | How to increase potato sales |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15795295A JP3577787B2 (en) | 1995-06-23 | 1995-06-23 | How to increase potato sales |
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| Publication Number | Publication Date |
|---|---|
| JPH0971A JPH0971A (en) | 1997-01-07 |
| JP3577787B2 true JP3577787B2 (en) | 2004-10-13 |
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| JP15795295A Expired - Fee Related JP3577787B2 (en) | 1995-06-23 | 1995-06-23 | How to increase potato sales |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006045144A (en) * | 2004-08-06 | 2006-02-16 | Kao Corp | Increased yield cultivation method of potatoes |
| CN102469789B (en) | 2009-07-24 | 2013-12-04 | 国立大学法人静冈大学 | Method for increasing income of staple food crop production |
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