JP2021172582A - Rice yield stabilizer for paddy rice cultivation to be used at time of undesirable weather, paddy rice cultivation method, and rice yield stabilization method - Google Patents
Rice yield stabilizer for paddy rice cultivation to be used at time of undesirable weather, paddy rice cultivation method, and rice yield stabilization method Download PDFInfo
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Abstract
Description
本発明は、水稲栽培に用いる天候不順時の米の収量安定化剤に関する。また、本発明は、天候不順時の米の収量を安定化する水稲栽培方法に関する。さらに、本発明は、水稲栽培における天候不順時の米の収量安定化方法に関する。 The present invention relates to a rice yield stabilizer used for rice cultivation in unseasonable weather. The present invention also relates to a paddy rice cultivation method for stabilizing the yield of rice in unseasonable weather. Furthermore, the present invention relates to a method for stabilizing the yield of rice in unseasonable weather in paddy rice cultivation.
従来、稲作のための土壌には、ｐＨ矯正を目的として農業用石灰資材が散布されてきた。しかし、農業用石灰資材を大量に散布しても、土壌中でのカルシウム溶出量が極めて微量であるため、カルシウム欠乏症状が発生していた。そこで、溶けにくい農業用石灰資材のカルシウム成分を溶け易くするために、クエン酸などの食用有機酸を配合することにより、カルシウム成分を土壌中の水分に容易に、より多く溶出させることが提案されている（特許文献１参照）。 Conventionally, agricultural lime material has been sprayed on the soil for rice cultivation for the purpose of pH correction. However, even when a large amount of agricultural lime material was sprayed, the amount of calcium eluted in the soil was extremely small, so that the symptoms of calcium deficiency occurred. Therefore, in order to make the calcium component of the difficult-to-dissolve agricultural lime material easier to dissolve, it has been proposed to easily dissolve more calcium component into the water in the soil by adding an edible organic acid such as citric acid. (See Patent Document 1).
また、土壌改良剤としては、サンゴや牡蠣殻等の貝殻等の炭酸カルシウムを含む海洋資源が用いられてきた。例えば、海中に堆積した粒状の風化造礁サンゴ粒を採取する採取工程と、採取した風化造礁サンゴ粒を未焼成のまま、培土全質量に対して２〜５質量％の割合で混合して土壌改良剤を製造することが提案されている（特許文献２参照）。 Further, as a soil conditioner, marine resources containing calcium carbonate such as shells such as coral and oyster shells have been used. For example, a sampling process for collecting granular weathered reef-building coral grains deposited in the sea and the collected weathered reef-building coral grains are mixed at a ratio of 2 to 5% by mass with respect to the total mass of the soil without being fired. It has been proposed to produce a soil conditioner (see Patent Document 2).
しかし、特許文献１に記載されるような従来の炭酸カルシウム資材を土壌に散布しても、日照不足や高温障害等の天候不良時の米の収量は改善できていなかった。また、特許文献２に記載されるような海洋資源を土壌に散布した場合には塩分が残留し、塩害が発生する恐れがあった。 However, even if the conventional calcium carbonate material as described in Patent Document 1 is sprayed on the soil, the yield of rice in bad weather such as lack of sunlight or high temperature damage cannot be improved. In addition, when marine resources as described in Patent Document 2 are sprayed on soil, salt remains and there is a risk of salt damage.
そこで、本発明の目的は、海洋資源を用いずに、水稲栽培において日照不足や高温障害等の天候不順時の米の収量を安定化するための安定化剤、水稲栽培方法および米の収量安定化方法を提供するものである。 Therefore, an object of the present invention is a stabilizer for stabilizing the yield of rice in unseasonable weather such as lack of sunlight and high temperature damage in paddy rice cultivation without using marine resources, a paddy rice cultivation method, and rice yield stabilization. It provides a method of conversion.
本発明者等は、上記課題を解決するために鋭意検討した結果、驚くべきことに、水稲栽培において、卵殻膜を含む卵殻粉砕物を有効成分として含有する米の収量安定化剤を土壌に散布することによって、上記課題が解決できることを知見した。本発明者等は、当該知見に基づいて、本発明を完成するに至った。 As a result of diligent studies to solve the above problems, the present inventors surprisingly sprayed a rice yield stabilizer containing a crushed eggshell membrane containing an eggshell membrane as an active ingredient in paddy rice cultivation. It was found that the above problems can be solved by doing so. The present inventors have completed the present invention based on the findings.
すなわち、本発明の第１の態様によれば、
水稲栽培に用いる天候不順時の米の収量安定化剤であって、
卵殻膜を含む卵殻粉砕物を有効成分として含有することを特徴とする、
米の収量安定化剤が提供される。
That is, according to the first aspect of the present invention.
It is a rice yield stabilizer used for paddy rice cultivation in unseasonable weather.
It is characterized by containing a crushed eggshell product containing an eggshell membrane as an active ingredient.
A rice yield stabilizer is provided.
また、本発明の第２の態様によれば、
天候不順時の米の収量を安定化する水稲栽培方法であって、
卵殻膜を含む卵殻粉砕物を有効成分として含有する米の収量安定化剤を、カルシウム量として、２５ｋｇ／１０ａ以上３００ｋｇ／１０ａ以下の量で土壌に散布することを特徴とする、
水稲栽培方法が提供される。
Further, according to the second aspect of the present invention.
It is a paddy rice cultivation method that stabilizes the yield of rice in unseasonable weather.
A rice yield stabilizer containing a crushed eggshell membrane containing an eggshell membrane as an active ingredient is sprayed on the soil in an amount of 25 kg / 10a or more and 300 kg / 10a or less as the amount of calcium.
Paddy rice cultivation methods are provided.
また、本発明の第３の態様によれば、
水稲栽培における天候不順時の米の収量安定化方法であって、
卵殻膜を含む卵殻粉砕物を、カルシウム量として、２５ｋｇ／１０ａ以上３００ｋｇ／１０ａ以下の量で土壌に散布することを特徴とする、
米の収量安定化方法が提供される。
Further, according to the third aspect of the present invention.
It is a method of stabilizing the yield of rice in unseasonable weather in paddy rice cultivation.
The crushed eggshell membrane containing the eggshell membrane is sprayed on the soil in an amount of 25 kg / 10a or more and 300 kg / 10a or less as the amount of calcium.
A method for stabilizing the yield of rice is provided.
本発明による米の収量安定化剤を水稲栽培において土壌に散布することで、日照不足や高温障害等の天候不順時であっても、米の収量を安定化することができる。また、本発明によれば、天候不順時の米の収量を安定化することができる水稲栽培方法を提供することができる。さらに、本発明によれば、水稲栽培における天候不順時の米の収量安定化方法を提供することができる。 By spraying the rice yield stabilizer according to the present invention on the soil in paddy rice cultivation, the rice yield can be stabilized even in unseasonable weather such as lack of sunlight or high temperature damage. Further, according to the present invention, it is possible to provide a paddy rice cultivation method capable of stabilizing the yield of rice in unseasonable weather. Furthermore, according to the present invention, it is possible to provide a method for stabilizing the yield of rice in unseasonable weather in paddy rice cultivation.
＜米の収量安定化剤＞
本発明による米の収量安定化剤は、日照不足や高温障害等の天候不順時の米の収量を安定化するものであり、卵殻粉砕物を有効成分として含有する。
<Rice yield stabilizer>
The rice yield stabilizer according to the present invention stabilizes the yield of rice in unseasonable weather such as lack of sunlight and high temperature damage, and contains crushed eggshell as an active ingredient.
本発明による米の収量安定化剤は、土壌改良剤として用いられている一般的な形態と同様の形態で用いることができる。本発明による米の収量安定化剤の形態は、特に限定されるものではないが、例えば、粉末、顆粒、ペレット等が挙げられる。また、米の収量安定化剤は、土壌にそのまま散布してもよいし、使用前に水等の溶媒に懸濁して液状にした後で土壌に散布してもよい。 The rice yield stabilizer according to the present invention can be used in a form similar to the general form used as a soil conditioner. The form of the rice yield stabilizer according to the present invention is not particularly limited, and examples thereof include powders, granules, and pellets. Further, the rice yield stabilizer may be sprayed on the soil as it is, or may be suspended in a solvent such as water to make it liquid before use, and then sprayed on the soil.
（米の種類）
本発明による米の収量安定化剤は、いずれの種類の米にも用いることができる。米の種類としては、例えば、キヌヒカリ、コシヒカリ、ササニシキ、あきたこまち、バスマティ等の粳米、こがねもち、ヒメノモチ等の糯米、山田錦等の酒米が挙げられる。
(Type of rice)
The rice yield stabilizer according to the present invention can be used for any kind of rice. Examples of the type of rice include glutinous rice such as Kinuhikari, Koshihikari, Sasanishiki, Akitakomachi and Basmati, glutinous rice such as Koganemochi and Himenomochi, and sake rice such as Yamada Nishiki.
（卵殻粉砕物）
本発明による米の収量安定化剤の有効成分である卵殻粉砕物には、一般に市販で流通されている卵殻を用いることができる。また、本発明は、卵殻の原料として、容易に入手しやすい観点から鶏卵由来のものを用いることが好ましい。さらに、卵殻粉砕物中の炭素分やチッ素分を向上させる観点から、卵殻膜付きの卵殻を用いることが好ましい。
(Crushed eggshell)
As the crushed eggshell product, which is the active ingredient of the rice yield stabilizer according to the present invention, commercially available eggshells can be used. Further, in the present invention, it is preferable to use a chicken egg-derived raw material for the eggshell from the viewpoint of easy availability. Further, from the viewpoint of improving the carbon content and nitrogen content in the crushed eggshell, it is preferable to use an eggshell with an eggshell membrane.
（卵殻粉砕物の大きさ）
卵殻粉砕物の大きさは、特に限定されないが、土壌に撒く際の舞い上がりによる作業効率を考慮し、大きさの下限値は、最長辺の長さが１０μｍ以上が好ましく、３０μｍ以上がより好ましい。一方、大きさの上限値は、土壌中での分散を考慮し、最長辺の長さが１５ｍｍ以下が好ましく、１０ｍｍ以下がより好ましい。
(Size of crushed eggshell)
The size of the crushed eggshell is not particularly limited, but the lower limit of the size is preferably 10 μm or more, more preferably 30 μm or more, in consideration of the work efficiency due to the soaring when sprinkling on the soil. On the other hand, the upper limit of the size is preferably 15 mm or less, and more preferably 10 mm or less, in consideration of dispersion in the soil.
（その他の成分）
本発明の米の収量安定化剤は、本発明の効果を損なわない範囲で、上述の卵殻粉砕物以外の成分を含んでもよい。卵殻粉砕物以外の成分としては、賦形剤や一般的に農作物を栽培する際に用いられる土壌改良剤成分等が挙げられる。具体的に、賦形剤としては澱粉やデキストリン等が挙げられる。土壌改良剤成分としては、チッ素、リン酸、カリウム、マグネシウム等が挙げられる。
(Other ingredients)
The rice yield stabilizer of the present invention may contain components other than the above-mentioned crushed eggshell product as long as the effects of the present invention are not impaired. Examples of components other than crushed eggshells include excipients and soil conditioner components generally used when cultivating agricultural products. Specific examples of the excipient include starch and dextrin. Examples of the soil conditioner component include nitrogen, phosphoric acid, potassium, magnesium and the like.
＜水稲栽培方法＞
本発明による水稲栽培方法は、天候不順時の米の収量を安定化する水稲栽培方法であって、卵殻粉砕物を有効成分として含有する米の収量安定化剤を土壌に散布するものである。米の収量安定化剤の使用量は、１０ａ（アール）あたり、カルシウム量として、２５ｋｇ以上３００ｋｇ以下であり、好ましくは５０ｋｇ以上であり、より好ましくは１００ｋｇ以上であり、また、好ましくは２００ｋｇ以下である。米の収量安定化剤の使用量が上記数値範囲内であれば、天候不順時であっても比較的良好な玄米収量を達成することができる。
なお、例えば、米の収量安定化剤の使用量が１０ａ（アール）あたり、カルシウム量として２５ｋｇの場合、２５ｋｇＣａ／１０ａと表示する。
<Paddy rice cultivation method>
The paddy rice cultivation method according to the present invention is a paddy rice cultivation method for stabilizing the yield of rice in unseasonable weather, in which a rice yield stabilizer containing a crushed eggshell product as an active ingredient is sprayed on the soil. The amount of the rice yield stabilizer used is 25 kg or more and 300 kg or less, preferably 50 kg or more, more preferably 100 kg or more, and preferably 200 kg or less as the amount of calcium per 10 a (are). be. If the amount of the rice yield stabilizer used is within the above numerical range, a relatively good brown rice yield can be achieved even in unseasonable weather.
For example, when the amount of the rice yield stabilizer used is 25 kg per 10a (are), it is displayed as 25 kg Ca / 10a.
（米の収量安定化剤の使用時期）
本発明による水稲栽培方法においては、田起こしの時期、栽培の直前、前期、中期または後期等いずれの時期に米の収量安定化剤を使用してもよい。さらに、これらの使用時期を組み合わせて使用してもよい。本発明による水稲栽培方法においては、本発明の効果が得られやすいことから、特に、栽培の直前又は前記の時期が好ましい。なお、使用時期を組み合わせて使用した場合の米の収量安定化剤の使用量は、その合計使用量が、前記米の収量安定化剤の使用量となる。
(When to use rice yield stabilizer)
In the paddy rice cultivation method according to the present invention, the rice yield stabilizer may be used at any time such as the time of raising the rice field, immediately before the cultivation, the early stage, the middle stage or the late stage. Further, these usage periods may be used in combination. In the paddy rice cultivation method according to the present invention, since the effects of the present invention can be easily obtained, it is particularly preferable immediately before cultivation or at the above-mentioned time. The total amount of the rice yield stabilizer used when used in combination with the time of use is the amount of the rice yield stabilizer used.
＜米の収量安定化方法＞
本発明による米の収量安定化方法は、水稲栽培における天候不順時の米の収量を安定化する方法であって、卵殻膜を含む卵殻粉砕物を、カルシウム量として、２５ｋｇ／１０ａ以上３００ｋｇ／１０ａ以下の量で土壌に散布するものである。卵殻粉砕物の使用量は、１０ａ（アール）あたり、カルシウム量として、２５ｋｇ以上３００ｋｇ以下であり、好ましくは５０ｋｇ以上であり、より好ましくは１００ｋｇ以上であり、また、好ましくは２００ｋｇ以下である。卵殻粉砕物の使用量が上記数値範囲内であれば、天候不順時であっても比較的良好な玄米収量を達成することができる。
<Rice yield stabilization method>
The method for stabilizing the yield of rice according to the present invention is a method for stabilizing the yield of rice in unseasonable weather in paddy rice cultivation. It is sprayed on the soil in the following amounts. The amount of crushed eggshell used is 25 kg or more and 300 kg or less, preferably 50 kg or more, more preferably 100 kg or more, and preferably 200 kg or less as the amount of calcium per 10 a (are). If the amount of crushed eggshell used is within the above numerical range, a relatively good brown rice yield can be achieved even in unseasonable weather.
以下に、実施例と比較例を挙げて本発明をさらに詳細に説明するが、本発明は以下の実施例の内容に限定して解釈されるものではない。 Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not construed as being limited to the contents of the following Examples.
＜米の収量安定化剤の製造例＞
卵殻膜付きの鶏卵殻を、乾燥卵殻粉製造装置を用いて、粒状になるまで粉砕して、卵殻粉砕物を得た。卵殻粉砕物の大きさは、最長辺の長さが３０μｍ以上１０ｍｍ以下であった。この卵殻粉砕物を米の収量安定化剤とした。なお、卵殻粉砕物の元素組成は、Ｃａ：３９．４％、Ｃ：１２．８％、Ｎ：０．５３％であり、従来の炭酸カルシウム資材（Ｃａ：４３．１％、Ｃ：３．２％、Ｎ：０．０１％）に比べて、炭素分およびチッ素分を豊富に含んでいた。
<Production example of rice yield stabilizer>
A chicken eggshell with an eggshell membrane was crushed using a dry eggshell powder production apparatus until it became granular to obtain a crushed eggshell product. The size of the crushed eggshell was 30 μm or more and 10 mm or less on the longest side. This crushed eggshell was used as a rice yield stabilizer. The elemental composition of the crushed eggshell is Ca: 39.4%, C: 12.8%, N: 0.53%, and conventional calcium carbonate materials (Ca: 43.1%, C: 3.3). Compared with 2%, N: 0.01%), it was rich in carbon and nitrogen.
＜水稲栽培の試験例＞
（実施例１Ａ）
神奈川県内の水田圃場（灰色低地土）にて水稲栽培試験を行った。供試品種はキヌヒカリとした。上記で製造した米の収量安定化剤を元肥として土壌に１００ｋｇＣａ／１０ａの量で使用した。その後、５月第４週に田植えを行ったが、７月第４週から８月第３週にかけて、日照不足が発生した。その後、９月第２週に収穫し、玄米収量を測定した。結果を表１に示す。
<Test example of paddy rice cultivation>
(Example 1A)
A paddy rice cultivation test was conducted in a paddy field (gray lowland soil) in Kanagawa Prefecture. The test variety was Kinuhikari. The rice yield stabilizer produced above was used as a base fertilizer in the soil in an amount of 100 kgCa / 10a. After that, rice was planted in the 4th week of May, but lack of sunshine occurred from the 4th week of July to the 3rd week of August. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 1.
（実施例１Ｂ）
実施例１Ａの試験方法において米の収量安定化剤の使用量を２００ｋｇＣａ／１０ａに変更した以外は同様の方法で、同一の水田圃場の別の区画で水稲栽培試験を行った。その後、９月第２週に収穫し、玄米収量を測定した。結果を表１に示す。
(Example 1B)
A paddy rice cultivation test was conducted in another section of the same paddy field in the same manner except that the amount of the rice yield stabilizer used was changed to 200 kgCa / 10a in the test method of Example 1A. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 1.
（実施例１Ｃ）
実施例１Ａの試験方法において米の収量安定化剤の使用量を３００ｋｇＣａ／１０ａに変更した以外は同様の方法で、同一の水田圃場の別の区画で水稲栽培試験を行った。その後、９月第２週に収穫し、玄米収量を測定した。結果を表１に示す。
(Example 1C)
A paddy rice cultivation test was conducted in another section of the same paddy field in the same manner except that the amount of the rice yield stabilizer used was changed to 300 kgCa / 10a in the test method of Example 1A. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 1.
（比較例１）
実施例１Ａの試験方法において米の収量安定化剤を使用しなかった以外は同様の方法で、同一の水田圃場の別の区画で水稲栽培試験を行った。その後、９月第２週に収穫し、玄米収量を測定した。結果を表１に示す。
(Comparative Example 1)
A paddy rice cultivation test was carried out in another section of the same paddy field in the same manner except that the rice yield stabilizer was not used in the test method of Example 1A. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 1.
上記の実施例１Ａ〜１Ｃの結果から、卵殻膜を含む卵殻粉砕物からなる米の収量安定化剤を元肥として土壌に１００〜３００ｋｇＣａ／１０ａの量で使用することで、日照不足という天候不順時であっても、玄米収穫量が低下せずに比較的良好であった。 From the results of Examples 1A to 1C above, by using a rice yield stabilizer composed of crushed eggshell membranes containing eggshell membranes as a base fertilizer in an amount of 100 to 300 kg Ca / 10a in the soil, when the weather is unseasonable due to insufficient sunshine. Even so, the yield of brown rice did not decrease and was relatively good.
（実施例２Ａ）
実施例１Ａの試験の次年度に、神奈川県内の同一の水田圃場（灰色低地土）にて水稲栽培試験を行った。供試品種はキヌヒカリとした。上記で製造した米の収量安定化剤を元肥として土壌に２５ｋｇＣａ／１０ａの量で使用した。その後、５月第４週に田植えを行ったが、７月第３週から７月第５週にかけて、高温障害が発生した。その後、９月第２週に収穫し、玄米収量を測定した。結果を表２に示す。
(Example 2A)
In the next year of the test of Example 1A, a paddy rice cultivation test was conducted in the same paddy field (gray lowland soil) in Kanagawa prefecture. The test variety was Kinuhikari. The rice yield stabilizer produced above was used as a base fertilizer in the soil in an amount of 25 kgCa / 10a. After that, rice was planted in the 4th week of May, but a high temperature disorder occurred from the 3rd week of July to the 5th week of July. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 2.
（実施例２Ｂ）
実施例２Ａの試験方法において米の収量安定化剤の使用量を５０ｋｇＣａ／１０ａに変更した以外は同様の方法で、同一の水田圃場の別の区画で水稲栽培試験を行った。その後、９月第２週に収穫し、玄米収量を測定した。結果を表２に示す。
(Example 2B)
A paddy rice cultivation test was conducted in another section of the same paddy field in the same manner except that the amount of the rice yield stabilizer used was changed to 50 kgCa / 10a in the test method of Example 2A. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 2.
（比較例２）
実施例２Ａの試験方法において米の収量安定化剤を使用しなかった以外は同様の方法で、同一の水田圃場の別の区画で水稲栽培試験を行った。その後、９月第２週に収穫し、玄米収量を測定した。結果を表２に示す。
(Comparative Example 2)
A paddy rice cultivation test was carried out in another section of the same paddy field in the same manner except that the rice yield stabilizer was not used in the test method of Example 2A. Then, it was harvested in the second week of September, and the yield of brown rice was measured. The results are shown in Table 2.
上記の実施例２Ａ〜２Ｂの結果から、卵殻膜を含む卵殻粉砕物からなる米の収量安定化剤を元肥として土壌に２５〜５０ｋｇＣａ／１０ａの量で使用することで、高温障害という天候不順時であっても、玄米収穫量が低下せずに比較的良好であった。 From the results of Examples 2A to 2B above, by using a rice yield stabilizer composed of crushed eggshell membranes containing eggshell membranes as a base fertilizer in soil in an amount of 25 to 50 kg Ca / 10a, when the weather is unseasonable due to high temperature damage. Even so, the yield of brown rice did not decrease and was relatively good.
（参考例）
実施例２Ａの試験の次年度に、神奈川県内の同一の水田圃場（灰色低地土）にて水稲栽培試験を行った。供試品種はキヌヒカリとした。米の収量安定化剤を使用せずに、５月第４週に田植えを行った後、９月第２週に収穫し、玄米収量を測定した。その結果、玄米収穫量は４３３ｋｇ／１０ａであった。なお、本年は、５月第４週から９月第２週までの間で日照不足や高温障害は発生せずに、天候良好であった。
(Reference example)
In the next year of the test of Example 2A, a paddy rice cultivation test was conducted in the same paddy field (gray lowland soil) in Kanagawa prefecture. The test variety was Kinuhikari. After planting rice in the 4th week of May without using a rice yield stabilizer, the rice was harvested in the 2nd week of September and the brown rice yield was measured. As a result, the yield of brown rice was 433 kg / 10a. This year, the weather was good from the 4th week of May to the 2nd week of September, with no lack of sunshine or high temperature damage.
上記の水稲栽培の試験例によれば、卵殻膜を含む卵殻粉砕物からなる米の収量安定化剤を元肥として土壌に２５〜３００ｋｇＣａ／１０ａの量で使用することで、天候不順時であっても玄米収穫量の低下を抑制し、天候良好時の玄米収穫量に比較的近づけることが可能であった。 According to the above-mentioned test example of paddy rice cultivation, by using a rice yield stabilizer composed of crushed eggshell membrane containing eggshell membrane as a base fertilizer in an amount of 25 to 300 kg Ca / 10a in soil, even in unseasonable weather. It was possible to suppress the decrease in brown rice yield and to bring it relatively close to the brown rice yield when the weather was good.
Claims (3)
卵殻膜を含む卵殻粉砕物を有効成分として含有することを特徴とする、
米の収量安定化剤。 It is a rice yield stabilizer used for paddy rice cultivation in unseasonable weather.
It is characterized by containing a crushed eggshell product containing an eggshell membrane as an active ingredient.
Rice yield stabilizer.
卵殻膜を含む卵殻粉砕物を有効成分として含有する米の収量安定化剤を、カルシウム量として、２５ｋｇ／１０ａ以上３００ｋｇ／１０ａ以下の量で土壌に散布することを特徴とする、
水稲栽培方法。 It is a paddy rice cultivation method that stabilizes the yield of rice in unseasonable weather.
A rice yield stabilizer containing a crushed eggshell membrane containing an eggshell membrane as an active ingredient is sprayed on the soil in an amount of 25 kg / 10a or more and 300 kg / 10a or less as the amount of calcium.
Paddy rice cultivation method.
卵殻膜を含む卵殻粉砕物を、カルシウム量として、２５ｋｇ／１０ａ以上３００ｋｇ／１０ａ以下の量で土壌に散布することを特徴とする、
米の収量安定化方法。 It is a method of stabilizing the yield of rice in unseasonable weather in paddy rice cultivation.
The crushed eggshell membrane containing the eggshell membrane is sprayed on the soil in an amount of 25 kg / 10a or more and 300 kg / 10a or less as the amount of calcium.
How to stabilize the yield of rice.
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