Alfalfa, rice by‐products and their incorporation for weed control in rice
Alfalfa, rice by‐products and their incorporation for weed control in rice
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苜蓿、水稻副产品及其用于水稻杂草控制的掺入
DOI：
10.1046/j.1445-6664.2003.00095.x
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发表时间：
2003
影响因子：
1.4
通讯作者：
N. H. Hong
中科院分区：
文献类型：
--
作者：
T. Xuan;E. Tsuzuki;H. Terao;M. Matsuo;T. Khanh;S. Murayama;N. H. Hong
两个紫花苜蓿品种，即罗森和育巴，以及Koshihikari （Oryza sativa L. cv.）的水稻副产品。粳稻),包括船体和麸皮用于除草大米。在日本8个常见的紫花苜蓿品种中，依次评价了拉森和羽巴的化感作用最强。在实验室实验中，莲子、育巴和水稻的副产品显示出抑制莴苣（Lactuca sativa L.）、稗草（Echinochloa oryzicola Vasing.）和单毛菌（monochoria vaginalis Presl var. plantaginea Solms-Laub.）出苗的作用。在水田试验中，施用后15 d，苜蓿、水稻副产物和苜蓿-水稻副产物掺入量为1 t ha - 1时，除米糠外，显著抑制杂草生长和减少杂草种类。在施用40 d后，尤霸（95.2%）、罗森（90.5%）和混合罗森壳（88.3%）对杂草的控制效果最好。稻壳对杂草的防效（51.7%）强于米糠（25.1%）。施用后，罗森和育巴对杂草出苗的抑制作用逐渐增强，而水稻副产物对杂草出苗的抑制作用逐渐减弱。与对照相比，拉森处理的水稻产量增幅最大（80.6%），略高于除草剂处理（9.6%）。结果表明，在这些研究中，拉森是最有希望控制杂草的材料。结果表明，化感物质的抑杂草能力对水稻生长和产量有较大影响。
Two alfalfa varieties, namely Rasen and Yuba, and rice by-products of Koshihikari (Oryza sativa L. cv. Japonica), including hull and bran were used for weed control in rice. Rasen and Yuba were sequentially evaluated to have the strongest allelopathic potential among eight common alfalfa varieties in Japan. Rasen, Yuba and rice by-products in a laboratory experiment exhibited suppression of emergence of lettuce (Lactuca sativa L.), barnyardgrass (Echinochloa oryzicola Vasing.), and monochoria (Monochoria vaginalis Presl var. plantaginea Solms-Laub.). In a paddy field experiment, at 15 days after application, a dose of 1 ton ha−1 of alfalfa, rice by-products and the incorporated alfalfa-rice by-products significantly inhibited weed growth and reduced weed species, except for rice bran. However, at 40 days after application, the greatest weed control was sequentially recorded with Yuba (95.2%), Rasen (90.5%) and the incorporated Rasen-hull (88.3%). Rice hull exhibited stronger (51.7%) weed control than the negligible weed control of rice bran (25.1%). Inhibition of both Rasen and Yuba on weed emergence after application became more vigorous, whereas those of rice by-products were gradually devitalized. Rasen had a maximum increase of rice yield (80.6%) compared to the control and it was slightly higher (9.6%) than the herbicide treatment. Findings showed that Rasen was the most promising material for weed control among those studied. Results denoted that weed control capability of allelopathic materials had an impetuous effect on rice growth and yield.