JP6303954B2 - How to grow lotus root - Google Patents
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Description
本発明は、レンコンの栽培方法に関する。 The present invention relates to a method for cultivating lotus root.
レンコンの栽培において問題となる多くの害虫のうち、その被害の甚大さから、防除が重要視される害虫としてカメムシ目害虫を挙げることができる。カメムシ目害虫の中でも特にクワイクビレアブラムシ等のアブラムシは、４月から５月にかけて立葉が形成される時期に畦畔から圃場に入り込んでレンコンに寄生し、そこで増殖を繰り返して５月から６月に大発生する。そして、収量に最も影響を与える根茎肥大期にあるレンコンが害虫被害を受け、しばしば減収になる。レンコン栽培における殺虫剤の施用は、５月上旬から６月上旬までの害虫の発生時期に２回程度、水和剤または粒剤の湛水散布を行うのが一般的であり、特定の粒剤については、植え付け時の植え溝土壌混和も行われている。一方、肥料については、種レンコンの植え付け前の全面施用が一般的に行われている。植え付け後は、必要に応じて追肥を行う。このように、従来のレンコン栽培においては、農薬と肥料とは別々に施用する必要があり、これらの作業は多くの労力を要するため、相当な負担となっていた。
農作業の省力化の手段としては、例えば、農薬含有肥料の使用が挙げられる（例えば、特許文献１参照）。
Among many pests that cause problems in the cultivation of lotus roots, stink bugs can be mentioned as pests that are important to control because of their large damage. Among the stink bugs, especially the aphids such as the long-horned beetle, enter the field from the shore during the time when the leaves are formed from April to May, and parasitize the lotus roots. A big outbreak occurs. The lotus root in the rhizome enlargement period, which has the greatest effect on yield, is damaged by pests and often decreases. The application of insecticides in lotus root cultivation is generally carried out by spraying a wettable powder or granule twice in the period of occurrence of pests from early May to early June. For, planting ditch soil mixing at the time of planting is also performed. On the other hand, for fertilizers, full-scale application before seed lotus planting is generally performed. After planting, add fertilizer if necessary. Thus, in the conventional lotus root cultivation, it is necessary to apply the agrochemical and the fertilizer separately, and these operations require a lot of labor, which is a considerable burden.
As a means for labor saving of farm work, for example, use of an agrochemical-containing fertilizer can be mentioned (for example, see Patent Document 1).
本発明は、効率的なレンコンの栽培方法を提供することを課題とする。 This invention makes it a subject to provide the cultivation method of an efficient lotus root.
本発明者は、上記課題を解決すべく鋭意検討を行った結果、湛水前の水田において、ネオニコチノイド殺虫活性化合物を含有する粒状肥料を植え溝に施用し、当該植え溝に種レンコンを植え付けることによって、カメムシ目害虫に対する防除効果が向上し、レンコンが良好に生育することを見出した。
すなわち本発明は、次の通りである。
［１］ （ａ）湛水前の水田において、ネオニコチノイド殺虫活性化合物を含有する粒状肥料を植え溝に施用する工程、及び
（ｂ）当該植え溝に種レンコンを植え付ける工程
を有することを特徴とするレンコンの栽培方法。
［２］ 前記粒状肥料は、ネオニコチノイド殺虫活性化合物が粒状肥料に含浸または粒状肥料の表面に付着されてなる農薬含有粒状肥料である［１］に記載の栽培方法。
［３］ 前記ネオニコチノイド殺虫活性化合物がクロチアニジンである［１］または［２］に記載の栽培方法。
［４］ （ａ）湛水前の水田において、ネオニコチノイド殺虫活性化合物を含有する粒状肥料を植え溝に施用する工程、及び
（ｂ）当該植え溝に種レンコンを植え付ける工程
を有することを特徴とするレンコンに発生するカメムシ目害虫の防除方法。
［５］ 前記カメムシ目害虫がカメムシ目アブラムシ科に属する昆虫である［４］に記載の防除方法。
As a result of intensive studies to solve the above problems, the present inventor applied a granular fertilizer containing a neonicotinoid insecticidal active compound to a planting groove in a paddy field before flooding, and seed lotus in the planting groove. It has been found that the planting improves the control effect against stink bugs and the lotus root grows well.
That is, the present invention is as follows.
[1] (a) In a paddy field before flooding, a step of applying granular fertilizer containing a neonicotinoid insecticidal active compound to a planting groove, and (b) planting a seed lotus in the planting groove How to grow lotus root.
[2] The cultivation method according to [1], wherein the granular fertilizer is an agrochemical-containing granular fertilizer in which a neonicotinoid insecticidal active compound is impregnated in a granular fertilizer or attached to the surface of the granular fertilizer.
[3] The cultivation method according to [1] or [2], wherein the neonicotinoid insecticidal active compound is clothianidin.
[4] (a) In a paddy field before flooding, the method comprises applying a granular fertilizer containing a neonicotinoid insecticidal active compound to a planting groove, and (b) planting a seed lotus into the planting groove. A control method for stink bugs in the lotus root.
[5] The control method according to [4], wherein the stink bug is an insect belonging to the order Aphididae.
本発明により、効率的なレンコンの栽培方法を提供することができる。 According to the present invention, an efficient lotus cultivation method can be provided.
本発明において、レンコンとはハスの根茎を指し、肥大したものが食用とされている。ハスとしては、ハス科ハス属ハス（Ｎｅｌｕｍｂｏ ｎｕｃｉｆｅｒａ）及びハス科ハス属キバナハス（Ｎｅｌｕｍｂｏ ｌｕｔｅａ）が挙げられる。これらのうち、ハス科ハス属ハスの根茎を肥大させてレンコンを得る方法として好適である。また、本発明において、種レンコンとは先端に生長点を有するハスの根茎を指し、植え付け用レンコンとして一般に知られている。 In the present invention, lotus root refers to the rhizome of lotus, and the enlarged one is edible. The lotus includes a lotus family, Nelumbo nucifera, and a lotus family, Nelumbo lutea. Among these, it is suitable as a method for obtaining a lotus root by enlarging the rhizome of the lotus family Lotus genus. Further, in the present invention, the seed lotus refers to a lotus rootstock having a growth point at the tip, and is generally known as a planting lotus root.
本発明のレンコンの栽培方法（以下、本発明栽培方法と記す）においては、ネオニコチノイド殺虫活性化合物を含有する粒状肥料（以下、本農薬含有粒状肥料と記す）を使用する。本農薬含有粒状肥料は、ネオニコチノイド殺虫活性化合物が肥料に混ぜ込まれ造粒されてなる農薬含有粒状肥料、または、ネオニコチノイド殺虫活性化合物が粒状肥料に含浸もしくは粒状肥料の表面に付着されてなる農薬含有粒状肥料であり、本発明においては後者の使用が好ましい。また、ネオニコチノイド殺虫活性化合物が粒状肥料の表面に付着されてなる農薬含有粒状肥料の使用がさらに好ましい。かかる農薬含有粒状肥料は、国際公開第２０１４／０９８２０３号に記載の方法に準じて製造することができる。 In the cultivation method of the lotus root of the present invention (hereinafter referred to as the present cultivation method), a granular fertilizer containing a neonicotinoid insecticidal active compound (hereinafter referred to as the present agricultural chemical-containing granular fertilizer) is used. This pesticide-containing granular fertilizer is an agrochemical-containing granular fertilizer that is granulated by mixing a neonicotinoid insecticidal active compound into the fertilizer, or a neonicotinoid insecticidal active compound is impregnated into the granular fertilizer or attached to the surface of the granular fertilizer The use of the latter is preferred in the present invention. Further, it is more preferable to use an agrochemical-containing granular fertilizer obtained by attaching a neonicotinoid insecticidal active compound to the surface of the granular fertilizer. Such agrochemical-containing granular fertilizer can be produced according to the method described in International Publication No. 2014/098203.
本農薬含有粒状肥料に含有されるネオニコチノイド殺虫化合物としては、クロチアニジン［（Ｅ）−１−（２−クロロ−１，３−チアゾール−５−イルメチル）−３−メチル−２−ニトログアニジン］（以下、化合物Ａと記す）、（Ｅ）−Ｎ−（６−クロロ−３−ピリジルメチル）−Ｎ−エチル−Ｎ’−メチル−２−ニトロビニリデンジアミン（以下、化合物Ｂと記す）、１−（６−クロロ−３−ピリジルメチル）−Ｎ−ニトロイミダゾリジン−２−イリデンアミン（以下、化合物Ｃと記す）、３−（２−クロロ−１，３−チアゾール−５−イルメチル）−５−メチル−１，３，５−オキサジアジナン−４−イリデン（ニトロ）アミン（以下、化合物Ｄと記す）、（Ｅ）−Ｎ−［（６−クロロ−３−ピリジル）メチル］−Ｎ’−シアノ−Ｎ−メチルアセトアニジン（以下、化合物Ｅと記す）、（ＲＳ）−１−メチル−２−ニトロ−３−（テトラヒドロ−３−フリルメチル）グアニジン、及び３−（６−クロロ−３−ピリジルメチル）−１，３−チアゾリジン−２−イリデンシアナミド等が挙げられる。本農薬含有粒状肥料に対するネオニコチノイド殺虫活性化合物の含有量は、通常０．００１〜２０重量％、好ましくは０．０１〜２重量％の範囲である。 As a neonicotinoid insecticidal compound contained in the present fertilizer-containing granular fertilizer, clothianidin [(E) -1- (2-chloro-1,3-thiazol-5-ylmethyl) -3-methyl-2-nitroguanidine] (Hereinafter referred to as compound A), (E) -N- (6-chloro-3-pyridylmethyl) -N-ethyl-N′-methyl-2-nitrovinylidenediamine (hereinafter referred to as compound B), 1 -(6-Chloro-3-pyridylmethyl) -N-nitroimidazolidin-2-ylideneamine (hereinafter referred to as Compound C), 3- (2-chloro-1,3-thiazol-5-ylmethyl) -5-methyl- 1,3,5-oxadiazinan-4-ylidene (nitro) amine (hereinafter referred to as Compound D), (E) -N-[(6-chloro-3-pyridyl) methyl] -N′-cyano-N— Tylacetanidine (hereinafter referred to as Compound E), (RS) -1-methyl-2-nitro-3- (tetrahydro-3-furylmethyl) guanidine, and 3- (6-chloro-3-pyridylmethyl) -1,3-thiazolidine-2-ylidenecyanamide and the like. The content of the neonicotinoid insecticidal active compound with respect to the present fertilizer-containing granular fertilizer is usually 0.001 to 20% by weight, preferably 0.01 to 2% by weight.
本農薬含有粒状肥料に含有される肥料成分としては、窒素、リン、カリウム、珪酸、マグネシウム、カルシウム、マンガン、ホウ素、及び鉄等のレンコンの生育に必要な元素を挙げることができる。特に窒素（Ｎ）、リン（Ｐ）及びカリウム（Ｋ）が適しており、これらから選ばれる一種以上、特にこれら全てを含有することが好ましい。本農薬含有粒状肥料におけるＮ、Ｐ2Ｏ5及びＫ2Ｏの三成分の含有量の比としては、５−５−７（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏの重量比率を意味する。以下同じ）、及び１２−１２−１６等の１型平上り型、５−５−５、及び１４−１４−１４等の２型水平型、６−６−５、及び８−８−５等の３型平下がり型、４−７−９、６−８−１１、及び１１−１６−２２等の４型上り型、４−７−７、及び１０−２０−２０等の５型上り平型、４−７−４、及び６−９−６等の６型山型、６−４−５、及び１４−１０−１３等の７型谷型、６−５−５、及び１８−１１−１１等の８型下がり平型、７−６−５、及び１４−１２−９等の９型下がり型、３−２０−０、及び１８−３５−０等の１０型ＮＰ型、１６−０−１２、及び１８−０−１６等の１１型ＮＫ型、並びに０−３−１４、及び０−１５−１５等の１２型ＰＫ型等を挙げることができる。粒状肥料の原料としては、尿素、硝酸アンモニウム、硝酸苦土アンモニウム、塩化アンモニウム、硫酸アンモニウム、リン酸アンモニウム、硝酸アンモニウム、硝酸ソーダ、硝酸カルシウム、硝酸カリウム、石灰窒素、ホルムアルデヒド加工尿素肥料（ＵＦ）、アセトアルデヒド加工尿素肥料（ＣＤＵ）、イソブチルアルデヒド加工尿素肥料（ＩＢＤＵ）、及びグアニール尿素（ＧＵ）等の窒素質肥料、過リン酸石灰、重過リン酸石灰、苦土過リン酸、リン酸アンモニウム、苦土リン酸、硫リン安、リン硝安カリウム、及び塩リン安等のリン酸質肥料、塩化カリウム、硫酸カリウム、硫酸カリソーダ、硫酸カリ苦土、重炭酸カリウム、リン酸カリウム、及び硝酸カリウム等のカリウム質肥料、珪酸カルシウム等の珪酸質肥料、硫酸マグネシウム、及び塩化マグネシウム等のマグネシウム質肥料、生石灰、消石灰、及び炭酸カルシウム等のカルシウム質肥料、硫酸マンガン、硫酸苦土マンガン、及び鉱さいマンガン等のマンガン質肥料、ホウ酸、及びホウ酸塩等のホウ素質肥料、並びに鉄鋼スラグ等の含鉄肥料等の肥料取締法に定められる普通肥料（複合肥料を含む）を挙げることができる。本農薬含有粒状肥料に対する肥料成分の含有量は、通常７５〜９９．９９重量％、好ましくは９５〜９９．９９重量％の範囲である。 Examples of fertilizer components contained in the present agricultural chemical-containing granular fertilizer include elements necessary for growing lotus root such as nitrogen, phosphorus, potassium, silicic acid, magnesium, calcium, manganese, boron, and iron. Nitrogen (N), phosphorus (P), and potassium (K) are particularly suitable, and it is preferable to contain one or more selected from these, particularly all of them. As a ratio of the contents of the three components N, P 2 O 5 and K 2 O in the present fertilizer-containing granular fertilizer, it means 5-5-7 (weight ratio of N—P 2 O 5 —K 2 O. The same shall apply hereinafter), 1-12 flat type such as 12-12-16, 2 type horizontal type such as 5-5-5 and 14-14-14, 6-6-5 and 8-8-5 etc. 3 type flat type, 4-7-9, 6-8-11, 4 type up type such as 11-16-22, 5 type up type flat such as 4-7-7, 10-20-20, etc. Type, 6 type mountain type such as 4-7-4 and 6-9-6, 7 type valley type such as 6-4-5 and 14-10-13, 6-5-5 and 18-11 8 type falling flat type such as -11, 9 type falling type such as 7-6-5 and 14-12-9, 10 type NP type such as 3-20-0 and 18-35-0, 16- 11 such as 0-12 and 18-0-16 NK-type, and 0-3-14 and 12 type PK-type such as 0-15-15 and the like. As raw materials for granular fertilizer, urea, ammonium nitrate, ammonium nitrate, ammonium nitrate, ammonium chloride, ammonium sulfate, ammonium phosphate, ammonium nitrate, sodium nitrate, calcium nitrate, potassium nitrate, lime nitrogen, formaldehyde processed urea fertilizer (UF), acetaldehyde processed urea fertilizer Nitrogenous fertilizers such as (CDU), isobutyraldehyde processed urea fertilizer (IBDU), and guaneaurea urea (GU), superphosphate lime, heavy superphosphate lime, bitter clay superphosphate, ammonium phosphate, bitter phosphate , Phosphate fertilizers such as ammonium sulfate, potassium phosphate ammonium, and ammonium phosphate; potassium fertilizers such as potassium chloride, potassium sulfate, potassium sulfate, potassium sulfate clay, potassium bicarbonate, potassium phosphate, and potassium nitrate; Silicate fertilizers such as calcium silicate, magnesium sulfate , And magnesium fertilizers such as magnesium chloride, calcium-based fertilizers such as quicklime, slaked lime, and calcium carbonate, manganese-based fertilizers such as manganese sulfate, sulfated manganese manganese, and mineral manganese, boron such as boric acid and borate Normal fertilizers (including complex fertilizers) defined in the Fertilizer Control Law such as fertilizers and ferrous fertilizers such as steel slag. Content of the fertilizer component with respect to this agrochemical-containing granular fertilizer is 75 to 99.99 weight% normally, Preferably it is the range of 95 to 99.99 weight%.
本発明における粒状肥料とは、前記原料が造粒されてなる粒状肥料、または、前記原料が担体に保持されてなる粒状肥料である。担体としては、カオリナイト等のカオリン鉱物、モンモリロナイト、スメクタイト、タルク、ロウ石、シリカ、含水珪酸カルシウム、炭酸カルシウム、ゼオライト、及び酸性白土等の鉱物質担体、セルロース、籾殻、澱粉、及び大豆粉等の植物質担体、並びに乳糖、蔗糖、デキストリン、食塩、及びトリポリリン酸ナトリウム等の水溶性担体が挙げられ、これらの担体は単独で用いてもよいし、組み合わせて用いてもよい。 The granular fertilizer in the present invention is a granular fertilizer formed by granulating the raw material or a granular fertilizer formed by holding the raw material on a carrier. Carriers include kaolin minerals such as kaolinite, montmorillonite, smectite, talc, rholite, silica, hydrous calcium silicate, calcium carbonate, zeolite, and acid clay, cellulose, rice husk, starch, soybean powder, etc. And a water-soluble carrier such as lactose, sucrose, dextrin, sodium chloride, and sodium tripolyphosphate. These carriers may be used alone or in combination.
本発明栽培方法においては、（ａ）湛水前の水田において、本農薬含有粒状肥料を植え溝に施用する工程（以下、工程ａと記す）に次いで、（ｂ）当該植え溝に種レンコンを植え付ける工程（以下、工程ｂと記す）を実施する。
本発明栽培方法の詳細を以下に記す。まず、土壌に堆肥等を施用して耕うんを行う等の通常のレンコン栽培における準備を実施した後、工程ａを実施する。工程ａにおける湛水前の水田は、湛水後に落水した状態の水田であってもよい。工程ａにおいては、種レンコンの植え付け位置に溝を形成し、当該溝に本農薬含有粒状肥料をすじ状に施用する。形成する溝の深さは、通常５〜３０ｃｍ、好ましくは１０〜２５ｃｍの範囲である。本農薬含有粒状肥料の施用は、人の手により行うか、施肥機を使用して行う。本農薬含有粒状肥料の施用量は、本農薬含有粒状肥料の重量で、通常１００〜１００００ｇ／ａ、好ましくは２０００〜６０００ｇ／ａ、より好ましくは３０００〜４５００ｇ／ａの範囲であり、ネオニコチノイド殺虫化合物の施用量として、通常０．０１〜１０００ｇ／ａ、好ましくは０．１〜１０ｇ／ａ、より好ましくは１〜５ｇ／ａ、より一層好ましくは２〜３ｇ／ａの範囲となるように施用する。肥料成分については、地域毎の慣行施肥基準に従い、必要に応じて本農薬含有粒状肥料と共に市販の肥料を施用する。
In the cultivation method of the present invention, (a) in the paddy field before flooding, following the step of applying the present agricultural chemical-containing granular fertilizer to the planting groove (hereinafter referred to as step a), (b) seed lotus root in the planting groove A planting step (hereinafter referred to as step b) is performed.
Details of the cultivation method of the present invention will be described below. First, after carrying out preparations for normal lotus root cultivation such as applying compost or the like to the soil and plowing, step a is carried out. The paddy field before flooding in the step a may be a paddy field in a state where water has been dropped after flooding. In the step a, a groove is formed at the seed lotus planting position, and the pesticide-containing granular fertilizer is applied to the groove in a streak shape. The depth of the groove to be formed is usually in the range of 5 to 30 cm, preferably 10 to 25 cm. The pesticide-containing granular fertilizer is applied by hand or by using a fertilizer applicator. The application rate of the present agricultural chemical-containing granular fertilizer is usually 100 to 10,000 g / a, preferably 2000 to 6000 g / a, more preferably 3000 to 4500 g / a in terms of the weight of the present agricultural chemical-containing granular fertilizer. The application rate of the insecticidal compound is usually 0.01 to 1000 g / a, preferably 0.1 to 10 g / a, more preferably 1 to 5 g / a, and even more preferably 2 to 3 g / a. Apply. For fertilizer components, commercially available fertilizers are applied together with the present agricultural chemical-containing granular fertilizer according to local customary fertilizer standards.
工程ａを実施した後、工程ｂを実施する。工程ｂにおいては、工程ａにおいて本農薬含有粒状肥料を施用した溝に種レンコンを植え付け、覆土する。種レンコンを植え付ける深さは、通常５〜２５ｃｍ、好ましくは１０〜２０ｃｍの範囲である。また、種レンコンを植え付ける際の株間は通常２０〜１００ｃｍ、条間は通常２．５〜４．５ｍの範囲である。工程ｂを実施した後は、湛水し、慣行の方法に準じて圃場の栽培管理を実施する。そして、通常の収穫時期に則り収穫を行う。 After performing step a, step b is performed. In step b, a seed lotus root is planted in the groove to which the present agricultural chemical-containing granular fertilizer is applied in step a and covered with soil. The depth for planting the seed lotus root is usually 5 to 25 cm, preferably 10 to 20 cm. Moreover, the distance between the plants when planting the seed lotus is usually 20 to 100 cm, and the distance between the streaks is usually 2.5 to 4.5 m. After carrying out step b, it is submerged and the cultivation management of the field is carried out according to the conventional method. Then, harvesting is performed according to the normal harvesting time.
本発明栽培方法において、工程ａ及び工程ｂは通常の植え付け時期に則り実施する。通常、工程ａ及び工程ｂを同日に実施し、工程ａを実施した直後に工程ｂを実施する態様が好適である。 In the cultivation method of the present invention, step a and step b are performed according to the normal planting time. Usually, an embodiment in which step a and step b are performed on the same day and step b is performed immediately after step a is performed is preferable.
また、工程ａ及び工程ｂを実施することにより、レンコンに発生するカメムシ目害虫を防除することができる。ここで、本発明の防除方法により防除可能なカメムシ目害虫としては、カメムシ目アブラムシ科 Ｒｈｏｐａｌｏｓｉｐｈｕｍ属 クワイクビレアブラムシ（Ｒｈｏｐａｌｏｓｉｐｈｕｍ ｎｙｍｐｈａｅａｅ）、Ａｐｈｉｓ属 ワタアブラムシ（Ａｐｈｉｓ ｇｏｓｓｙｐｉｉ）、Ｍｙｚｕｓ属 モモアカアブラムシ（Ｍｙｚｕｓ ｐｅｒｓｉｃａｅ）等が挙げられ、Ｒｈｏｐａｌｏｓｉｐｈｕｍ属の防除方法として好適である。 In addition, by carrying out step a and step b, stink bugs generated on the lotus root can be controlled. Here, the bugs that are controllable by the control method of the present invention include the order of the Aphididae, Rhopalosiphum spp. And the like, and is suitable as a method for controlling Rhopalosifum.
工程ａ及び工程ｂを実施することにより、農薬と肥料とを別々に施用するよりもカメムシ目害虫に対する防除効果が向上すると共にレンコンが良好に生育するという効果が発揮される。 By carrying out step a and step b, the effect of improving the control effect against stink bugs is improved and the lotus root grows better than when the pesticide and fertilizer are applied separately.
本発明栽培方法により、植え付け前の全面施肥を省略することが可能になる。そして、従来は、種レンコンを植え付けた後、５月〜６月にかけて発生するカメムシ目害虫を防除するため、水田全面に農薬散布を２回程度実施する必要があったところ、本発明栽培方法の場合、害虫の発生が減少する７月まで防除効果が持続するため、従来実施してきた水田全面への農薬散布を省略することが可能になる。 The cultivation method of the present invention makes it possible to omit full-scale fertilization before planting. And conventionally, after planting the seed lotus root, it was necessary to carry out pesticide spraying on the entire paddy field about twice in order to control stink bugs occurring from May to June. In this case, since the pest control effect continues until July when the occurrence of pests is reduced, it is possible to omit the pesticide spraying on the entire surface of the paddy field.
以下、実施例により本発明をさらに具体的に説明するが、本発明はこれらに限定されるものではない。 EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited thereto.
製造例１
粒径約１〜４ｍｍの粒状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％）９３．３重量部を粉砕要素のない混合機中に投入し、ポリビニルアルコール２重量％水溶液をスプレーする。スプレー後、化合物Ｂ １重量％を含有する水和剤６．７重量部を混合機中に投入し、２０分間混合する。この顆粒を６０℃で２０分間乾燥し、農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得る。
Production Example 1
93.3 parts by weight of granular fertilizer having a particle size of about 1 to 4 mm (NP 2 O 5 —K 2 O = 11% −16% −22%) was put into a mixer without a pulverizing element, and polyvinyl alcohol 2 Spray a weight% aqueous solution. After spraying, 6.7 parts by weight of a wettable powder containing 1% by weight of Compound B is charged into the mixer and mixed for 20 minutes. The granules are dried at 60 ° C. for 20 minutes to obtain agrochemical-containing granular fertilizer (agrochemical active ingredient content is 0.067% by weight).
製造例２
化合物Ｃ ０．０６７重量部及び粉状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％）９９．９３３重量部を混合機中に投入し、２０分間混合する。この化合物Ｃを０．０６７重量％含有する粉状肥料を、皿型造粒機を用いて転動させながら、水をスプレーして粒状に造粒する。この顆粒を６０℃で２０分間乾燥し、農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得る。
Production Example 2
0.067 parts by weight of Compound C and 99.933 parts by weight of powdered fertilizer (N—P 2 O 5 —K 2 O = 11% -16% -22%) are put into a mixer and mixed for 20 minutes. The powdered fertilizer containing 0.067% by weight of the compound C is granulated into granules by spraying water while rolling it using a dish type granulator. The granules are dried at 60 ° C. for 20 minutes to obtain agrochemical-containing granular fertilizer (agrochemical active ingredient content is 0.067% by weight).
製造例３
化合物Ｄ ０．０６７重量部及び粉状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％）９９．９３３重量部を混合機中に投入し、２０分間混合する。この化合物Ｄを０．０６７重量％含有する粉状肥料を、皿型造粒機を用いて転動させながら、水をスプレーして粒状に造粒する。この顆粒を６０℃で２０分間乾燥し、農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得る。
Production Example 3
0.067 parts by weight of Compound D and 99.933 parts by weight of powdered fertilizer (N—P 2 O 5 —K 2 O = 11% -16% -22%) are put into a mixer and mixed for 20 minutes. The powdered fertilizer containing 0.067% by weight of Compound D is granulated into granules by spraying water while rolling it using a dish type granulator. The granules are dried at 60 ° C. for 20 minutes to obtain agrochemical-containing granular fertilizer (agrochemical active ingredient content is 0.067% by weight).
製造例４
化合物Ｅ ０．０６７重量部及び粉状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％）９９．９３３重量部を混合機中に投入し、２０分間混合する。この化合物Ｅを０．０６７重量％含有する粉状肥料を、皿型造粒機を用いて転動させながら、水をスプレーして粒状に造粒する。この顆粒を６０℃で２０分間乾燥し、農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得る。
Production Example 4
0.067 parts by weight of Compound E and 99.933 parts by weight of powdered fertilizer (NP 2 O 5 —K 2 O = 11% -16% -22%) are put into a mixer and mixed for 20 minutes. The powdered fertilizer containing 0.067% by weight of the compound E is granulated into granules by spraying water while rolling it using a dish type granulator. The granules are dried at 60 ° C. for 20 minutes to obtain agrochemical-containing granular fertilizer (agrochemical active ingredient content is 0.067% by weight).
製造例５
化合物Ａ １重量部をアセトン９９重量部に溶解して、有効成分量が１重量％である溶液を得る。次いで、該溶液６．７重量部を粒径約１〜４ｍｍの粒状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％）１００重量部に添加し、粉砕要素のない混合機中によって十分に混合した後、一昼夜風乾することによって農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得る。
Production Example 5
1 part by weight of Compound A is dissolved in 99 parts by weight of acetone to obtain a solution having an active ingredient amount of 1% by weight. Next, 6.7 parts by weight of the solution is added to 100 parts by weight of granular fertilizer having a particle diameter of about 1 to 4 mm (NP 2 O 5 —K 2 O = 11% −16% −22%). After thorough mixing in a non-mixing machine, air-drying for a day and night gives agrochemical-containing granular fertilizer (agrochemical active ingredient content is 0.067% by weight).
製造例６
化合物Ａ ７０．０重量部及び勝光山クレーＳ（ロウ石、株式会社勝光山鉱業所製）３０．０重量部を混合し、遠心粉砕機を用いて粉砕することにより、化合物Ａを含有する粉状農薬（以下、粉状農薬Ａと記す。）を得た。
次に、粉状農薬Ａ ３４．７３ｇ及びコーティングオイル（石油系炭化水素、ＪＸ日鉱日石エネルギー株式会社製）５１９．９３ｇを、混合機を用いて混合することにより、化合物Ａ懸濁液を得た。
次に、ドラムミキサー（ＵＤ−５、杉山重工株式会社製）の容器に粒状肥料（Ｎ−Ｐ2Ｏ5−Ｋ2Ｏ＝１１％−１６％−２２％、ＳＲ化成１６２、住友化学株式会社製）３５．０ｋｇを入れ、１４ｒｐｍで転動させながら、化合物Ａ懸濁液５５４．６６ｇを常温で添加し、６０分間混合した。その後、特花ＳＰクレー（ロウ石、株式会社勝光山鉱業所製）４３１．９２ｇを常温で添加し、１０分間混合することにより、農薬含有粒状肥料（農薬有効成分含有量は０．０６７重量％）を得た。
Production Example 6
A powder containing Compound A by mixing 70.0 parts by weight of Compound A and 30.0 parts by weight of Katsuyama Clay S (Roishi, manufactured by Katsuyama Mining Co., Ltd.) and pulverizing using a centrifugal pulverizer A pesticide (hereinafter referred to as powdered pesticide A) was obtained.
Next, 34.73 g of powdery pesticide A and 519.93 g of coating oil (petroleum hydrocarbon, manufactured by JX Nippon Oil & Energy Corporation) are mixed using a mixer to obtain a compound A suspension. It was.
Next, a drum mixer (UD-5, Sugiyama Heavy Industries Co., Ltd.) container granular fertilizer (N-P 2 O 5 -K 2 O = 11% -16% -22% of, SR Kasei 162, Sumitomo Chemical Co., Ltd. (Made) 35.0 kg was added, and while rolling at 14 rpm, 554.66 g of Compound A suspension was added at room temperature and mixed for 60 minutes. After that, 431.92 g of Tokuhana SP clay (Roishi, manufactured by Katsumiyama Mining Co., Ltd.) was added at room temperature and mixed for 10 minutes, whereby an agrochemical-containing granular fertilizer (agrochemical active ingredient content was 0.067% by weight) )
試験例１
１／２５０ａポットに土壌を入れ、当該土壌に溝を形成した後、当該溝に製造例６で得られた農薬含有粒状肥料を、施用量が表１に記載の通りになるようにすじ状に施用した。農薬含有粒状肥料を施用した溝にレンコン（品種：支那白花）の種レンコンを植え付け、覆土した。植え付けは３月２８日に実施した。植え付けを実施した後は、湛水し、通常の方法に準じて栽培管理を実施した。浮き葉や立ち葉が現れた植え付け後６３日目に、まず各ポットにクワイクビレアブラムシを５０頭ずつ放虫し、その後１週間おきに１０頭ずつ計３回放虫した。これを処理区とする。
一方、農薬含有粒状肥料に代えて、下記の表１における処理区１と同じ施肥量になるように化成肥料を施用したこと以外は処理区１及び２と同様にレンコンを栽培し、放虫した。これを無処理区とする。
その後、表１に記載の日数経過後のクワイクビレアブラムシの成虫及び幼虫数をそれぞれの試験区において調査した。試験は１区３ポットで行った。寄生したアブラムシの３ポットの合計数を表１に示す。
［表１］
After putting the soil into the 1 / 250a pot and forming a groove in the soil, the pesticide-containing granular fertilizer obtained in Production Example 6 is streaked into the groove so that the application rate is as shown in Table 1. Applied. A lotus root of a lotus root (variety: Chinese white flower) was planted and covered with a pesticide-containing granular fertilizer. Planting was carried out on March 28th. After planting, the plants were flooded and cultivation management was carried out according to the usual method. On the 63rd day after planting in which floating leaves and standing leaves appeared, first 50 quilled beetles were released into each pot, and then 10 worms were released 3 times a week. This is the treatment area.
On the other hand, in place of the agrochemical-containing granular fertilizer, lotus roots were cultivated and released in the same manner as in the treatment sections 1 and 2 except that the chemical fertilizer was applied so as to have the same fertilization amount as the treatment section 1 in Table 1 below. . Let this be an untreated zone.
Thereafter, the number of adults and larvae of the long-tailed beetle after the lapse of the days shown in Table 1 was examined in each test section. The test was carried out in 3 pots in 1 district. The total number of 3 pots of parasitic aphids is shown in Table 1.
[Table 1]
Claims (5)
（ｂ）当該植え溝に種レンコンを植え付ける工程
を有することを特徴とするレンコンの栽培方法。 (A) In a paddy field before flooding, a step of applying a granular fertilizer containing a neonicotinoid insecticidal active compound to a planting groove, and (b) a step of planting a seed lotus in the planting groove Cultivation method.
（ｂ）当該植え溝に種レンコンを植え付ける工程
を有することを特徴とするレンコンに発生するカメムシ目害虫の防除方法。 (A) In a paddy field before flooding, a step of applying a granular fertilizer containing a neonicotinoid insecticidal active compound to a planting groove, and (b) a step of planting a seed lotus in the planting groove To control stink bugs that occur in the world.
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