Nurturing sturdy mechanical-transplanting seedlings is the key to achieve high yield using mechanical-transplanting technology under wheat-rice cropping conditions in Chengdu Basin. In this study, super hybrid rice II...Nurturing sturdy mechanical-transplanting seedlings is the key to achieve high yield using mechanical-transplanting technology under wheat-rice cropping conditions in Chengdu Basin. In this study, super hybrid rice II You 602 was adopted as experimental material, to investigate the effects of sowing date on seedling growth,transplanting quality, growth process and yield of mechanical-transplanting seedlings in wheat-rice cropping region of Chengdu Basin, thus exploring supporting high-yield cultivation techniques for mechanical-transplanting technology in Chengdu Basin, Results showed that the appropriate sowing date for mechanical transplanting in wheatrice cropping region of Chengdu Basin was April 10-15, and the appropriate seedling age was 45-50 d, which led to the highest yield of mechanical-transplanting seedlings. Although postponing sowing was conducive to improving transplanting quality and increasing the percentage of earbearing tillers, it would result in lagged group growth, poor spike quality and reduced effective number of panicles, grain number, seed-setting rate, 1 000-seed weight and other yield components, thus declining the yield. Yield reduction rate would be above 10% with sowing date postponed by 15 d.展开更多
基金Supported by "Twelfth Five-Year"National Science and Technology Support Program(2012BAD04B13)"Twelfth Five-Year"National Science and Technology Support Program(2011BAD16B05)+3 种基金Special Fund for National Public Service Sectors(Agriculture)from the Ministry of Agriculture of China(200903050-4)Special Fund for National Public Service Sectors(Agriculture)of China(201303129)Major Special Project from the Ministry of Agriculture of ChinaScience and Technology SupportProgram of Sichuan Province(2010NZ0093)~~
文摘Nurturing sturdy mechanical-transplanting seedlings is the key to achieve high yield using mechanical-transplanting technology under wheat-rice cropping conditions in Chengdu Basin. In this study, super hybrid rice II You 602 was adopted as experimental material, to investigate the effects of sowing date on seedling growth,transplanting quality, growth process and yield of mechanical-transplanting seedlings in wheat-rice cropping region of Chengdu Basin, thus exploring supporting high-yield cultivation techniques for mechanical-transplanting technology in Chengdu Basin, Results showed that the appropriate sowing date for mechanical transplanting in wheatrice cropping region of Chengdu Basin was April 10-15, and the appropriate seedling age was 45-50 d, which led to the highest yield of mechanical-transplanting seedlings. Although postponing sowing was conducive to improving transplanting quality and increasing the percentage of earbearing tillers, it would result in lagged group growth, poor spike quality and reduced effective number of panicles, grain number, seed-setting rate, 1 000-seed weight and other yield components, thus declining the yield. Yield reduction rate would be above 10% with sowing date postponed by 15 d.
文摘丹麦创新工业机器人制造商Universal Robots(优傲机器人)在2013年中国国际机器人展上正式宣布成立中国分公司——优傲机器人(上海)有限公司,旨在为中国客户提供更专注的本地化服务,全力开拓中国市场。分公司的成立是Universal Robots(优傲机器人)进一步满足中国市场需求所采取的重要战略举措,标志着该公司在中国发展迈入全新阶段。为了表示对中国市场的充分重视,该公司首席执行官恩里克?克罗格?艾佛森(Enrico Krog Iversen)先生携董事会成员专程来华出席分公司成立庆典和新闻发布会,
