タイトル |
麦あと湛水散播水稲における落水出芽の効果と処理法 |
担当機関 |
埼玉県農業試験場 |
研究期間 |
1998~1998 |
研究担当者 |
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発行年度 |
1998 |
要約 |
麦あと湛水散播における播種後~出芽揃期までの落水処理は、芽干処理と比べ苗立率の向上と初期生育の促進が図れる。また有効茎の早期確保による収量性の向上や倒伏多発年ではその発生を遅らせる効果も見られ、生産安定に有効である。
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背景・ねらい |
生育期間の短い麦あと湛直の生産安定を図るため、苗立の安定と初期生育の早期確保に有効と考えられる落水出芽方式の効果確認とその処理法を確立する。
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成果の内容・特徴 |
- 落水出芽の効果(芽干し処理と比較して以下の効果がある)
(1)苗立率を高め、苗立を安定して確保できる(図1)。 (2)初期生育を促進し、有効茎の早期確保ができる(図2)。 (3)穂数や籾数の増加により収量も高まる(図3)。 (4)倒伏の多発年ではその発生を遅らせ、登熟歩合や千粒重の低下を防げる(図4)。
- 落水処理の期間
播種後から出芽揃期までとする。6月中旬以降の散播湛直では播種後5~6日間となる。落水期間の延長は生育中期の葉色低下、茎数減から収量性が低下する(図5)
- 落水出芽による初期管理体系
図6の体系とする。気温の高い麦あとの播種では特に雑草の生育進度に注意し、発生状況によっては落水処理の期間の短縮を行う。
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成果の活用面・留意点 |
- 播種期6月第4~5半旬に細粒灰色低地土において品種「彩の華」で、乾籾の3倍重のコーティング種子を用い、麦稈搬出条件で得た成果である。なお、比較の「芽干し」は出芽揃期までは浅水とし、出芽揃期から3日間程度落水処理を行った。
- 雀等の鳥害の危険性がある場合は避ける。また、大雨が予想される場合は入水し、被害を回避する。
- 雑草発生量の多いほ場や発生の早い場合は行わない。
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図表1 |
![215664-1.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-1.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=1d7f75472e666e6a641998a8b7fe8ddff4b1bb1369557f919bcae8fcd6b813b4) |
図表2 |
![215664-2.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-2.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=01325943754013fdf8119bf50e6aed2c7df7e77ce695e80f4ebab82977647a04) |
図表3 |
![215664-3.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-3.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=ec4c90f9cde30b7d72deb193e9f58601d7a976f7938e4c3c78164300e2585b10) |
図表4 |
![215664-4.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-4.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=9c8b9d483ea81f638cca62771e7a07a5e651e8a9e599a8c67e015af504790877) |
図表5 |
![215664-5.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-5.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=84950fed48f51b66c74311448d7709c0ab436dc072a4f0b8b77a2ea0db5a5d0b) |
図表6 |
![215664-6.gif](https://s3-agre-content.s3.ap-northeast-1.amazonaws.com/assets/images/seika_chart/215664-6.gif?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Security-Token=IQoJb3JpZ2luX2VjEBcaDmFwLW5vcnRoZWFzdC0xIkgwRgIhAMQdSzMvsyhw0gclM9FQvVK5VDvF7XnV1%2Fxbd6ZwwiHnAiEA31oz3FzplzFE9pQ2DjJ6y7cGTJQD8u57vnOfTtd5GRkqmQQIsP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgw1MzIzMzEwNzIwNDEiDE3Wuz50YuXgSiUOZirtAzUKosBdKliOdFZO3YiMB7ArtalaRa1jRt18MPgMQOVt5h7mvswjqeUQXYpJgPWKA5GlM0zly2az95dV4IAG4zq5%2BygS180G6LSxFFbkp6pd%2BcuUxFZr0T2JK0%2BV71CU%2F6kN0p6Ahpyzz8HKVCBzNdlT7J3AwBwTTOAw2s5%2BiEsP4ljQktC4pYEzixa2Is1i4ZWsx3k2mgFcg9aEsx%2FwyQOy%2Bma%2FWnBUTqQjdzMECC36Tz%2FeTHd7GieEEA54gxOnxDWpbLuthiHnJJOEpFjkx4f7xngJYqCriPBN4Rq%2BmGAylVrK%2FV7ixE9Qw2nZ96MWqL3%2BbIWeuV%2FA17KO70cberLDOI2Vt2ZlbDWJFaCM0NBZAp4m%2BYSAcxXMqodGgDdDPbQvVA0ZWSXPOck8xLTHTC4VuVnV5x2I35YV1oUEQmNVdJ8JXLt3X4CcedU3uwjT%2FnQoFEKf0nH3w3EY4BhW0a80wx0SbYT4%2F11S9PqKlCIaGPJXC4eFQpKHl8u2ocmZKMPGir9d85RTp05cwp4Sk%2FWGstuvf4QyFQalh%2FewgPPi%2BXdxqYyilCSvwobcwgI8iUTGq%2BsauAC%2BICnE496fG%2Fowb5QCA71Nxi90yPkRhGsqs4z%2BrxnKp6NSXFTklMnFKslhjvi%2FRPqzJKS162Aw%2B5yzswY6pQFqhbKVPThtIBlVzQeIxBR%2BC%2BNcvIW%2BAgNqHbTIDTLqOnFpDIyHkn2S7iT8Rg%2Fx75gDiPVwEodFKO9vQOiF8o94K4M8lZ7kIhFUKAYWa4Ukj08glQCV05InVUQ5Z2DtMYV4SM8d4pJa0eIxtrvFHYB8hL3YjGnY5WqsrHWTsQyPEAbTc5QFe1a0ytH5N55bb449t3Iw6hcvlE4bI7WlaNTC11CXAxY%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=ASIAXX4LHRIU3JILKDLF%2F20240614%2Fap-northeast-1%2Fs3%2Faws4_request&X-Amz-Date=20240614T233157Z&X-Amz-SignedHeaders=host&X-Amz-Expires=1800&X-Amz-Signature=8107b1fc9c16fd68fae951fac964b5c3ce7df1abfb4b6bf748c46fe88fea6759) |
カテゴリ |
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