苗床培肥和播种量对不同秧龄机插杂交籼稻秧苗素质的影响  

Effects of Different Fertilizer Application Rates and Seeding Rates on Seedling Quality for Different Seedling Ages of Mechanical Transplanting of Indica Hybrid Rice

作　　者：朱丽芬 李能早 帕三石 谢云玲 赵丽娟 康玲会 夏琼梅[3] 朱海平[3] 陈明艳 尹娇 杨从党[3] 李贵勇[3] 龙瑞平[3] ZHU Li-fen;LI Neng-zao;PA San-shi;XIE Yun-ling;ZHAO Li-juan;KANG Ling-hui;XIA Qiong-mei;ZHU Hai-ping;CHEN Ming-yan;YIN Jiao;YANG Cong-dang;LI Gui-yong;LONG Rui-ping(Agricultural Technology Extension Center of Mangshi County,Yunnan Mangshi 678400,China;Comprehensive Agricultural Service Center of Mangshi Township,Yunnan Mangshi 678400,China;Food Crops Research Institute,Yunnan Academy of Agricultural Sci-ences,Yunnan Kunnjing 650205,China)

机构地区：[1]芒市农业技术推广中心,云南芒市678400 [2]芒市镇农业综合服务中心,云南芒市678400 [3]云南省农业科学院粮食作物研究所,云南昆明650205

出　　处：《西南农业学报》2018年第11期2282-2287,共6页Southwest China Journal of Agricultural Sciences

基　　金：国家重点研发计划(2016YFD0300506);云南省科技惠民专项(2016RA001);农业部公益行业(农业)科研专项(201303102,201303129);云南省科技人才和平台计划(2017HC0022);云南省现代农业水稻产业技术体系建设

摘　　要：【目的】探索机插籼稻适龄壮秧培育技术。【方法】以杂交籼稻岗优6366为试验材料,通过设置不同播种量和施肥量,研究不同秧龄期秧苗素质的差异,探索机插籼稻适龄壮秧培育技术。【结果】播种量、施肥量和秧龄3因素对机插杂交籼稻秧苗素质有显著影响,其影响大小为秧龄>播种量>施肥量;机插杂交籼稻适宜的秧龄为20～30 d,超过30 d后秧苗生长受阻,秧苗素质变差,不适宜机插;随着秧龄的增加,应减少播种量;每100 kg育秧土掺混200 g复合肥能够满足30 d以内的秧苗生长。【结论】秧龄对秧苗素质影响最大,其次是播种量;机插杂交籼稻适宜的秧龄为20～30 d; 20 d秧龄时播种量为90 g/盘,当秧龄为25～30 d时播种量为70 g/盘; 30 d以内秧龄的施肥量为每100 kg育秧土掺混200 g复合肥。[ Objective] The aim of this paper is to explore the technology of cultivation strong seedlings for mechanical transplanting rice. [ Method] Using indica hybrid rice Gangyou6366 as material, the quality of mechanical transplanting seedling of rice was studied by means of carrying out the experiments of different fertilizer application rates and seeding rates at diffeent seedling ages. [ Result] The seeding rates, fertilizer application rates and seedling ages had significant effect on quality of machine-transplanting indica hybrid rice seedling. The effect of seeding age on seedling quality was predominant, followed by seeding rate and fertilizer application rate. The suitable transplanting age was 20 - 30 days and the seedlings quality became worse when the seedling age was over 30 days. The sowing rate should be reduced with the increase of the seedlings age. It proved to be sufficient to growth of seedlings that 100 kg of soil mixed with 200 g compound fertilizer in 30 days of seeding age. [ Conclusion] Seedling age had the greatest influence on seedling quality, followed by seeding rate. The suitable seedling age of machine-transplanted indica hybrid rice was 20 - 30 days. The seeding rates were respectively 90 g/plate at the seedling age of 20 days and 70 g/plate at the seedling age of 25 to 30 days. The amount of fertilization within 30 days of the seedling age was 100 kg of soil mixed with 200 g of compound fertilizer.

关 键 词：机插秧 快龄 施肥量 播种量 秧苗素质 籼稻 

分 类 号：S511[农业科学—作物学]