JP3278694B2 - Drying method for granulated coated seeds - Google Patents
Drying method for granulated coated seedsInfo
- Publication number
- JP3278694B2 JP3278694B2 JP32459891A JP32459891A JP3278694B2 JP 3278694 B2 JP3278694 B2 JP 3278694B2 JP 32459891 A JP32459891 A JP 32459891A JP 32459891 A JP32459891 A JP 32459891A JP 3278694 B2 JP3278694 B2 JP 3278694B2
- Authority
- JP
- Japan
- Prior art keywords
- drying
- temperature
- granulated
- seeds
- granulated coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Pretreatment Of Seeds And Plants (AREA)
- Drying Of Solid Materials (AREA)
- Adjustment And Processing Of Grains (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、造粒材と湿潤剤とで造
粒コートされた直後の高含水率の造粒コート種子を乾燥
する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for drying granulated coated seeds having a high moisture content immediately after being granulated and coated with a granulating material and a wetting agent.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】農業人口
等の減少のため、農業分野においても省力化は必須の課
題になっている。そのため、種子を造粒コーティングし
て、播種を機械化することが相当な勢いで進んでいる。2. Description of the Related Art Labor saving has become an indispensable subject even in the agricultural field due to a decrease in the agricultural population and the like. Therefore, mechanization of seeding by granulating and coating seeds is proceeding with considerable momentum.
【０００３】このような造粒コート種子は、造粒材と湿
潤剤（通常はバインダーを含む水溶液）を用いて製造さ
れており、造粒直後の造粒コート種子には、２０〜４０
％の大量の水分が含まれている。このような高含水率の
造粒コート種子を乾燥するには、種々の方法が知られて
いるが、一般に種子は高湿度で高温にさらされると発芽
性を失うので、特開昭５５−２１７０５号や特開平２−
６０５１０号などに記載されているように、３０〜４０
℃の比較的低温の空気で数時間から十数時間もかけて乾
燥している。[0003] Such granulated coated seeds are produced using a granulating material and a wetting agent (usually an aqueous solution containing a binder).
Contains a large amount of water. Various methods are known for drying granulated coated seeds having such a high water content. However, since seeds generally lose germination when exposed to high temperatures at high humidity, Japanese Patent Laid-Open No. 55-21705 discloses No.
No. 30510, as described in No. 60510
Drying in air at a relatively low temperature of ° C. for several hours to several tens of hours.
【０００４】本発明の課題は、発芽性を失わずに乾燥時
間を短縮する方法を提供する処にある。An object of the present invention is to provide a method for shortening the drying time without losing germination.
【０００５】[0005]
【課題を解決するための手段】本発明の造粒コート種子
の乾燥法は、造粒材と湿潤剤とで造粒コートされた種子
を乾燥する方法であって、造粒直後の含水率２０％以上
の造粒コート種子を振動または転動させながら、５０℃
以上１００℃以下の熱風を前記造粒コート種子に接触通
過させ、該種子自体または排風の温度を測定し、該温度
が熱風温度よりも低い所定の温度となったときに乾燥を
終了させることを特徴とする。The method for drying granulated coated seeds of the present invention is a method for drying granulated and coated seeds with a granulating material and a wetting agent. % Or more while shaking or rolling granulated coated seeds
Hot air having a temperature of 100 ° C. or less is passed through the granulated coated seed, and the temperature of the seed itself or exhaust air is measured, and when the temperature reaches a predetermined temperature lower than the hot air temperature, drying is terminated. It is characterized by.
【０００６】本発明においては、高温の熱風を使用して
いながら、被乾燥物である造粒コート種子の温度上昇が
抑えられているので、種子の発芽性を失うことなく、乾
燥時間が短縮される。In the present invention, while using high-temperature hot air, the temperature rise of the granulated coated seeds to be dried is suppressed, so that the drying time is reduced without losing the germination of the seeds. You.
【０００７】すなわち、造粒直後の高含水率の造粒コー
ト種子を、５０℃以上の高温の熱風（熱風は、通常は高
温空気で構成されているが、窒素などの常温で気体の物
質を加熱してもよい）で乾燥しても、造粒コート層中に
含まれている水分の蒸発潜熱により、造粒コート種子そ
のものの温度上昇は抑えられる。この際、造粒コート種
子が振動または転動しているので、熱風が造粒コート種
子に満遍なく接触して、乾燥斑がない。That is, a granulated coated seed having a high moisture content immediately after granulation is treated with hot air having a temperature of 50 ° C. or higher (hot air is usually composed of high-temperature air; (Heating may be performed), and the temperature rise of the granulated coated seed itself can be suppressed by the latent heat of vaporization of the moisture contained in the granulated coat layer. At this time, since the granulated coated seed is vibrating or rolling, hot air uniformly contacts the granulated coated seed and there is no dry spot.
【０００８】乾燥が進み、造粒コート種子の含水率が小
さくなると、水分の拡散・蒸発が遅くなり、造粒コート
種子そのものの温度が上昇し始める。このまま放置する
と、最終的には、熱風温度と同じ温度まで上昇するた
め、種子の発芽性を失う。しかしながら、熱風温度と同
じになるまで乾燥する必要はなく、造粒コート種子の温
度が４０℃程度まで上昇すれば、造粒コート種子は目的
の含水率（通常５％以下）まで乾燥される。この時点で
乾燥を終了すれば、種子は発芽性を維持できる。When drying proceeds and the moisture content of the granulated coated seeds decreases, the diffusion and evaporation of water slows down, and the temperature of the granulated coated seeds itself starts to rise. If left as it is, the temperature eventually rises to the same temperature as the hot air temperature, so that the seeds lose their germinability. However, it is not necessary to dry until the temperature becomes the same as the hot air temperature, and when the temperature of the granulated coated seed is raised to about 40 ° C., the granulated coated seed is dried to the target moisture content (usually 5% or less). If drying is terminated at this point, the seeds can maintain germination.
【０００９】次に、乾燥の具体的手段を列挙する。Next, specific means for drying are listed.
【００１０】（１）本発明においては、乾燥時間を短縮
するために、５０℃以上に加温して相対湿度を下げた熱
風を用いて、造粒コート種子を乾燥させる。すなわち、
高温になるほど相対湿度が下がり、造粒コート種子から
の水分の蒸発が大きくなるため、乾燥時間は短くなる。
熱風温度が５０℃未満だと、乾燥速度が遅く、乾燥時間
短縮の目的に合致しない。ただし、熱風温度が１００℃
を超えると、乾燥速度が早すぎて造粒コート種子内の水
の拡散が追いつかず、表面と内部との間に温度差が生
じ、造粒コート層にひび割れが生じる。なお、好ましい
熱風温度は、６０〜９０℃である。(1) In the present invention, in order to shorten the drying time, the granulated coated seeds are dried using hot air heated to 50 ° C. or higher and the relative humidity is reduced. That is,
The higher the temperature, the lower the relative humidity, and the greater the evaporation of moisture from the granulated coated seeds, so the shorter the drying time.
If the hot air temperature is lower than 50 ° C., the drying speed is low, which does not meet the purpose of reducing the drying time. However, hot air temperature is 100 ℃
If it exceeds, the drying rate is too fast to keep up with the diffusion of water in the granulated coat seeds, causing a temperature difference between the surface and the inside, causing cracks in the granulated coat layer. The preferred hot air temperature is 60 to 90 ° C.
【００１１】（２）造粒コート種子を乾燥する際、造粒
コート種子が極く少なくて各種子が重ならずに離れて存
在する場合は、造粒コート種子から熱風への水分の蒸発
・拡散はスムーズに行なわれる。(2) When drying the granulated coated seeds, if the number of the granulated coated seeds is very small and the various seeds are separated without overlapping, the evaporation of water from the granulated coated seeds to hot air Diffusion occurs smoothly.
【００１２】しかしながら、造粒コート種子が多くなっ
て層状に堆積すると、熱風に接している造粒コート種子
は早く乾燥するが、熱風に接していない内部の種子は乾
燥が遅いため、早く乾燥した表面の種子の温度が上昇
し、長時間にわたって高温・高湿状態下にさらされる。
このため、表面の種子の発芽性が失われる。However, when the number of granulated coated seeds increases and deposits in layers, the granulated coated seeds that are in contact with the hot air dry quickly, but the inner seeds that are not in contact with the hot air dry slowly, so that they dry quickly. The temperature of the seed on the surface rises and is exposed to high temperature and high humidity for a long time.
For this reason, the germination of the seed on the surface is lost.
【００１３】そこで、この問題を解決するために、本発
明においては、造粒コート種子を機械的に振動または転
動させて、種子一粒一粒の周りに満遍なく熱風が流れる
ようにし、どの種子からも、熱風への水分の蒸発・拡散
がスムーズに行なわれるようにした。Therefore, in order to solve this problem, in the present invention, the granulated coated seeds are mechanically vibrated or rolled so that hot air flows evenly around each seed. Therefore, the evaporation and diffusion of water into the hot air can be performed smoothly.
【００１４】すなわち、例えば、目皿または網などの多
孔性支持体の上に造粒直後の造粒コート種子を層状に堆
積させ、この造粒コート種子を振動または転動させなが
ら、下方より熱風を送って種子層を通過させれば、全て
の造粒コート種子が熱風と接触して、水分の蒸発が均一
に満遍なく行なわれる。That is, for example, granulated coated seeds immediately after granulation are deposited in layers on a porous support such as a perforated plate or a net, and while the granulated coated seeds are vibrated or rolled, hot air is applied from below. Is sent to pass through the seed layer, all the granulated coated seeds come into contact with the hot air, and the evaporation of water is performed uniformly and evenly.
【００１５】造粒コート種子を振動または転動させるに
は、熱風の風速または風量を上げてもよいし、目皿また
は網などの多孔性支持体を振動させてもよいし、造粒コ
ート種子層の上部を撹拌機で撹拌してもよい。また、そ
れらを組み合わせてもよい。なお、振動または転動は、
常時行なう必要はなく、断続的に実施してもよいが、造
粒コート種子より蒸発・拡散した水分を含む高湿度の排
風は、造粒コート種子層をすみやかに通過させ、上方よ
りすみやかに系外に排出させることが重要である。In order to vibrate or roll the granulated coated seeds, the wind speed or air volume of the hot air may be increased, a porous support such as a perforated plate or a net may be vibrated, or the granulated coated seeds may be vibrated or rolled. The upper part of the layer may be stirred with a stirrer. Moreover, you may combine them. In addition, vibration or rolling
It is not necessary to perform it all the time, and it may be carried out intermittently.However, high-humidity exhaust air containing moisture evaporated and diffused from the granulated coat seeds immediately passes through the granulated coat seed layer, and immediately from above. It is important to discharge it out of the system.
【００１６】（３）造粒コート種子の乾燥は、造粒コー
ト種子自体の温度（以下、品温ともいう）または排風の
温度が所定の温度（通常は、４０℃）に達したところで
終了する。これは、品温や排風温度と造粒コート種子の
含水率との間には一定の関係があり、品温または排風温
度を測定すれば、造粒コート種子の含水率を推定するこ
とができるからである。(3) The drying of the granulated coated seed is terminated when the temperature of the granulated coated seed itself (hereinafter also referred to as the product temperature) or the temperature of the exhaust air reaches a predetermined temperature (normally 40 ° C.). I do. This is because there is a certain relationship between the product temperature or the exhaust air temperature and the moisture content of the granulated coated seeds, and if the product temperature or the exhaust air temperature is measured, the moisture content of the granulated coated seeds should be estimated. Because it can be.
【００１７】ただし、造粒コートの方法や熱風の条件な
どにより、この関係は若干変化するので、予め、実際に
行なう条件で実験を行なって、終了温度を確認しておく
ことが好ましい。However, this relationship slightly changes depending on the method of the granulation coating, the condition of the hot air, and the like. Therefore, it is preferable to confirm the end temperature by conducting an experiment in advance under the conditions actually performed.
【００１８】また、品温は、振動または転動が不充分で
あると、測定場所により差が生じる。これは、乾燥が不
均一であることをも示しているので、振動または転動条
件を変更して乾燥の均一化を図ることが好ましい。If the vibration or the rolling is insufficient, the product temperature varies depending on the measuring place. This also indicates that drying is non-uniform, so it is preferable to change the vibration or rolling conditions to achieve uniform drying.
【００１９】なお、品温と排風温度とは、原則的に同一
の値となるので、乾燥の終了はどちらの温度で判断して
もよいが、測定温度のばらつきのより少ない排風温度に
より判断することが好ましい。両方の温度で判断するこ
とが、さらに好ましい。Since the product temperature and the exhaust air temperature have the same value in principle, the end of the drying may be determined at any temperature. It is preferable to judge. It is more preferable to make a judgment at both temperatures.
【００２０】（４）多孔性支持体の上に堆積させる造粒
コート種子層の厚さは特に限定されるものではないが、
層が厚すぎると、種子の振動または転動が困難となり、
層が薄く種子がまばらにしかない場合は、熱の損失が多
く不経済である。(4) The thickness of the granulated coat seed layer deposited on the porous support is not particularly limited.
If the layer is too thick, it will be difficult to vibrate or roll the seeds,
If the layers are thin and the seeds are sparse, heat loss is high and uneconomical.
【００２１】従って、種子層の厚さは、造粒コート種子
が多孔性支持体を一面に覆った状態から２０ｃｍ程度ま
での間が好ましい。このようにすると、１時間以内とい
う非常に短時間での乾燥が可能となる。Therefore, the thickness of the seed layer is preferably between about 20 cm and the state in which the granulated coated seed completely covers the porous support. In this way, drying can be performed in a very short time of 1 hour or less.
【００２２】（５）乾燥温度により発芽性が悪影響を受
け易い種類の種子については、乾燥終期の品温上昇時
に、熱風の温度を５０℃以下に下げて品温の上昇を抑え
ることが好ましい。乾燥終期に熱風温度を５０℃以下に
下げることにより、乾燥時間は若干延びるが、乾燥終期
までに至る時間が短かいので、本発明の優位性を否定す
ることにはならない。(5) For seeds of a kind whose germination property is likely to be adversely affected by the drying temperature, it is preferable that the temperature of hot air be reduced to 50 ° C. or less at the end of drying to suppress the temperature rise. By lowering the hot air temperature to 50 ° C. or less at the end of drying, the drying time is slightly extended, but the time required to reach the end of drying is short, so that the superiority of the present invention is not denied.
【００２３】このように、種子に応じて、あるいは造粒
条件に応じて、熱風温度の条件変更は可能である。As described above, it is possible to change the condition of the hot air temperature according to the seed or the granulation condition.
【００２４】（６）本発明によれば、乾燥が短時間で終
了するので、回分式乾燥法で行なってもよいし、連続式
乾燥法で行なってもよい。(6) According to the present invention, since drying is completed in a short time, the drying may be performed by a batch drying method or a continuous drying method.
【００２５】本発明を実施する上で使用する造粒材、湿
潤剤、バインダーなどとしては、従来の造粒コーティン
グに用いられたものを、そのまま適用することができ
る。また、添加物として、殺菌剤、疎水剤、植物ホルモ
ン、肥料などの各種薬剤を用いることも可能である。As the granulating material, wetting agent, binder and the like used in carrying out the present invention, those used in the conventional granulating coating can be applied as they are. Further, as an additive, various agents such as a bactericide, a hydrophobic agent, a plant hormone, and a fertilizer can be used.
【００２６】また、本発明を適用する種子の種類も特に
限定されるものではなく、白菜、人参、レタス、ホウレ
ン草、玉葱などの各種の野菜種子や、ベチュニヤ、ベコ
ニヤなどの花卉類の種子などに広く適用できる。The kind of seeds to which the present invention is applied is not particularly limited. For example, various kinds of vegetable seeds such as Chinese cabbage, ginseng, lettuce, spinach, and onion, and seeds of flowers such as betunia and beconia are also available. Widely applicable.
【００２７】[0027]
【実施例】以下、実施例及び比較例により本発明をより
詳細に説明するが、本発明はこれらの実施例に限定され
るものではない。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.
【００２８】実施例１ 白菜の種子１２ｋｇを傾斜回転パンに入れ、これにポリ
ビニルアルコールの０．５％水溶液をスプレーで加え、
次いでクレーを加える。この操作を交互に繰り返し、粒
径約３ｍｍの造粒コート種子を得た。ポリビニルアルコ
ール０．５％水溶液の総使用量は３８ｋｇであり、クレ
ーの総使用量は５５ｋｇであった。この造粒直後の未乾
燥造粒コート種子の含水率は３７．６％であった。 Example 1 12 kg of Chinese cabbage seeds were placed in an inclined rotating pan, and a 0.5% aqueous solution of polyvinyl alcohol was added thereto by spraying.
The clay is then added. This operation was alternately repeated to obtain granulated coated seeds having a particle size of about 3 mm. The total amount of the 0.5% aqueous solution of polyvinyl alcohol was 38 kg, and the total amount of the clay was 55 kg. The moisture content of the undried granulated coated seed immediately after the granulation was 37.6%.
【００２９】実施例２ 実施例１で得られた未乾燥造粒コート種子を、図１に示
す振動式乾燥機を用いて乾燥した。 Example 2 The undried granulated coated seed obtained in Example 1 was dried using a vibratory dryer shown in FIG.
【００３０】この振動式乾燥機は、下方に熱風の入口１
１、上方に排風の出口１２をそれぞれ有する中太の乾燥
室１３からなり、この乾燥室１３の中に、目皿または網
からなる多孔性支持体１４が水平に取付けられている。
この多孔性支持体１４の上に、造粒直後の未乾燥造粒コ
ート種子を堆積し、図示しない振動手段で乾燥室全体を
振動させながら、入口１１より熱風を送り込んで、種子
層１５を下から上に通過させる。通過した排風は、図示
しないブロワーにより、出口１２から乾燥室外に排出さ
れる。なお、品温と排風温度を測定するためには、種子
層１５と出口１２に温度計を設置すればよい。The vibratory dryer has a hot air inlet 1
1, a medium-sized drying chamber 13 having an exhaust air outlet 12 at the top, and a porous support 14 made of a mesh plate or a net is horizontally mounted in the drying chamber 13.
On the porous support 14, undried granulated coated seeds immediately after granulation are deposited, and while the entire drying chamber is vibrated by vibrating means (not shown), hot air is sent from the inlet 11 to lower the seed layer 15 down. From above. The exhaust air that has passed through is discharged from the outlet 12 to the outside of the drying chamber by a blower (not shown). In order to measure the product temperature and the exhaust air temperature, a thermometer may be installed at the seed layer 15 and the outlet 12.
【００３１】本実施例においては、実施例１で得られた
未乾燥造粒コート種子のうち５０ｋｇを図１に示す振動
式乾燥機に仕込み、充分に振動させながら、底部より６
５℃の熱風を１００ｍ３／分で圧送し、造粒コート種子
に接触させながら通過させた。In this example, 50 kg of the undried granulated coated seeds obtained in Example 1 was charged into the vibratory dryer shown in FIG.
Hot air at 5 ° C. was pumped at 100 m 3 / min, and passed while contacting the granulated coated seeds.
【００３２】乾燥開始前には２５℃であった造粒コート
種子の品温は、乾燥開始後直ちに２８℃まで上昇し、そ
の後ほぼその温度を維持し、２０分経過後に徐々に上昇
した。品温が４０℃に達した時点で乾燥を終了し、室温
まで冷却した。乾燥の終了は乾燥開始後２５分の時点で
あった。また、乾燥後の造粒コート種子の含水率は３．
９％であった。The temperature of the granulated coated seed, which was 25 ° C. before the start of drying, rose to 28 ° C. immediately after the start of drying, and was maintained at that temperature, and gradually increased after 20 minutes. When the product temperature reached 40 ° C., the drying was finished and the product was cooled to room temperature. The end of the drying was 25 minutes after the start of the drying. The moisture content of the granulated coated seed after drying is 3.
9%.
【００３３】なお、本実施例で用いた振動式乾燥機は、
乾燥室全体を振動させるものであったが、本発明はこれ
に限られず、多孔性支持体のみを振動させてもよい。The vibration dryer used in this embodiment is
Although the whole drying chamber is vibrated, the present invention is not limited to this, and only the porous support may be vibrated.
【００３４】比較例１ 実施例１で得られた未乾燥造粒コート種子のうちの５０
ｋｇを、４０℃の熱風乾燥機に入れ、１５時間乾燥した
後に室温まで冷却した。この乾燥造粒コート種子の含水
率を測定すると、４．１％であった。 Comparative Example 1 50 of the wet granulated coated seeds obtained in Example 1
The kg was put in a hot air dryer at 40 ° C., dried for 15 hours, and then cooled to room temperature. The moisture content of the dried granulated coated seed was 4.1%.
【００３５】以上の実施例２及び比較例１で得られた造
粒コート種子を用いて、常法により発芽テストを行なっ
た。その結果を表１に示す。Using the granulated coated seeds obtained in Example 2 and Comparative Example 1, a germination test was carried out by a conventional method. Table 1 shows the results.
【００３６】[0036]
【表１】 [Table 1]
【００３７】表１から明らかなように、本発明の乾燥法
によって得られた造粒コート種子は、従来の乾燥法で得
られた造粒コート種子と、発芽勢、発芽率ともに変わら
ず、乾燥方法による差は認められなかった。As is clear from Table 1, the granulated coated seeds obtained by the drying method of the present invention differ from the granulated coated seeds obtained by the conventional drying method in that both the germination power and the germination rate are unchanged. No difference was observed between the methods.
【００３８】[0038]
【発明の効果】以上のように、本発明の乾燥法によれ
ば、種子の発芽勢、発芽率を維持しながら、短時間で造
粒コート種子を乾燥することができるので、造粒コーテ
ィング全体の工程時間が大巾に短縮でき、産業の発展に
多大な貢献ができる。As described above, according to the drying method of the present invention, the granulated coated seeds can be dried in a short time while maintaining the germination rate and germination rate of the seeds. Process time can be greatly reduced, and can greatly contribute to industrial development.
【図１】本発明の一実施例で用いる振動式乾燥機を示す
縦断面図である。FIG. 1 is a longitudinal sectional view showing a vibratory dryer used in one embodiment of the present invention.
１１ 熱風の入口 １２ 排風の出口 １３ 乾燥室 １４ 多孔性支持体 １５ 種子層 11 Hot Air Inlet 12 Exhaust Air Outlet 13 Drying Chamber 14 Porous Support 15 Seed Layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 西畑 隆男 滋賀県蒲生郡安土町下豊浦６−72 (72)発明者 松下 慎哉 大津市一里山３−24−18 (56)参考文献 特開 昭62−269612（ＪＰ，Ａ) 特公 昭53−44339（ＪＰ，Ｂ２) 特公 平１−38442（ＪＰ，Ｂ２) 特公 昭59−1443（ＪＰ，Ｂ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A01C 1/06 B02B 1/02 F26B 3/092 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takao Nishihata 6-72 Shimotoyoura, Azuchi-cho, Gamo-gun, Shiga Prefecture (72) Inventor Shinya Matsushita 3-24-18 Ichiriyama, Otsu-shi (56) References JP-A-62-62 269612 (JP, A) JP-B-53-44339 (JP, B2) JP-B-1-38442 (JP, B2) JP-B-59-1443 (JP, B2) (58) Fields surveyed (Int. Cl. 7 , DB name) A01C 1/06 B02B 1/02 F26B 3/092
Claims (2)
子を乾燥する方法であって、造粒直後の含水率２０％以
上の造粒コート種子を振動または転動させながら、５０
℃以上１００℃以下の熱風を前記造粒コート種子に接触
通過させ、該種子自体または排風の温度を測定し、該温
度が熱風温度よりも低い所定の温度となったときに乾燥
を終了させることを特徴とする造粒コート種子の乾燥
法。1. A method for drying seeds granulated and coated with a granulating material and a wetting agent, wherein the granulated coated seeds having a water content of 20% or more immediately after granulation are vibrated or tumbled while stirring.
The hot air of not less than 100 ° C. and not more than 100 ° C. is passed through the granulated coated seed, and the temperature of the seed itself or the exhaust air is measured. When the temperature reaches a predetermined temperature lower than the hot air temperature, the drying is finished. A method for drying granulated coated seeds, comprising:
０〜４０％であることを特徴とする請求項１記載の造粒
コート種子の乾燥法。 2. The granulated coated seed immediately after granulation has a moisture content of 2
The granulation according to claim 1, wherein the amount is from 0 to 40%.
Method for drying coated seeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32459891A JP3278694B2 (en) | 1991-12-09 | 1991-12-09 | Drying method for granulated coated seeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32459891A JP3278694B2 (en) | 1991-12-09 | 1991-12-09 | Drying method for granulated coated seeds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05207807A JPH05207807A (en) | 1993-08-20 |
| JP3278694B2 true JP3278694B2 (en) | 2002-04-30 |
Family
ID=18167610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32459891A Expired - Fee Related JP3278694B2 (en) | 1991-12-09 | 1991-12-09 | Drying method for granulated coated seeds |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3278694B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5754837B2 (en) * | 2010-08-26 | 2015-07-29 | 住化農業資材株式会社 | Method for drying coated granulated seeds |
| JP5866185B2 (en) * | 2011-11-22 | 2016-02-17 | 住化農業資材株式会社 | Method for improving coated seed characteristics |
| KR102524640B1 (en) * | 2020-08-03 | 2023-04-24 | (주)신농 | Apparatus for drying seed |
| CN114391335B (en) * | 2021-12-30 | 2023-03-31 | 河北沃土种业股份有限公司 | Seed coating machine |
-
1991
- 1991-12-09 JP JP32459891A patent/JP3278694B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05207807A (en) | 1993-08-20 |
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