Mechanism of high biomass production and stability of intercropped green manure species

间作绿肥品种高生物量产生机制及稳定性

• 批准号: 19780015
• 负责人: MIYAZAWA Kae
• 金额: $ 2.98万
• 依托单位: National Agricultural Research Organization
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19780015/
• 关键词: 混植; 環境変動; 相互作用; マルチカラー染色; 密度効果; 混作; 定植前リン酸施用; AM菌根菌; バイオマス; ソルガム; ヒマワリ; クロタラリア; 緑肥

Greater productivity under intercropping has been attributed to the complementary use of environmental resources. However, the rooting pattern of component species under intercropping, which is an important morphological feature considering the complementary uptake of nutrients, has been studied only rarely under field conditions because of inherent technical difficulties. I examined rooting patterns of three green manure species, both sole cropped and intercropped, using a newly developed multi-color staining technique.Sorghum distributed roots deeper under intercropping than under sole cropping ; it was the most important contributor to increased biomass under intercropping. Crotalaria had a deep rooting system under both sole cropping and intercropping. Sunflower, with a shallow rooting system, was suppressed extremely under intercropping, possibly because of water deficiency in late in the season. The rooting patterns of green manure species examined using multi-color staining were related closely to the aboveground performance of these species under intercropping.

间作作物生产力的提高归功于环境资源的互补利用。然而，由于固有的技术困难，间作成分物种的生根模式是考虑到养分互补吸收的重要形态特征，在田间条件下的研究很少。我使用新开发的多色染色技术检查了三种绿肥品种（单作和间作）的生根模式。间作的高粱比单作的根部分布更深；它是间作生物量增加的最重要贡献者。猪屎豆在单作和间作下都有深根系。向日葵的根系较浅，在间作条件下受到极大的抑制，可能是由于晚季缺水的缘故。使用多色染色检查的绿肥物种的生根模式与这些物种在间作下的地上表现密切相关。

项目成果

緑肥作物を混作するとなぜバイオマスが増加するのか

为什么与绿肥作物混作会增加生物量？

• 发表时间: 2008
• 作者: 宮沢佳恵;武田容枝;村上敏文;村山徹
• 通讯作者: 村山徹

Intercropping green manure species-effects on rooting patterns

间作绿肥品种——对生根模式的影响

• 发表时间: 2010
• 期刊: Plant and Soil (Online first)
• 作者: Kawakatsu T;Yamamoto M. P;Touno S. M;Yasuda H;Takaiwa F;宮沢佳恵 et al.
• 通讯作者: 宮沢佳恵 et al.

緑肥作物の混作によるバイオマス増加と安定性への効果

绿肥作物混作对生物量增加和稳定性的影响

• 发表时间: 2010
• 作者: 宮沢佳恵;武田容枝;村上敏文;村山徹
• 通讯作者: 村山徹

Combining pre-transplanting phosphorus application and green manure incorporation: a trial for reducing fertilizer input

移栽前施磷与绿肥掺施相结合：减少化肥投入的尝试

• DOI: 10.1080/00380768.2010.548311
• 发表时间: 2011
• 作者: K. Miyazawa;M. Takeda;T. Murayama;Kazuhiro Watanabe
• 通讯作者: Kazuhiro Watanabe