一季中晚稻旱直播栽培技术试验初报  

Preliminary report on cultivation technique of dry direct seeding for single-middle-late season rice

作　　者：李康活[1] 刘怀珍[1] 黄庆[1] 陆秀明[1] 张彬[1] 李惠芬[1] 邹积祥[1] 周少川[1] 

机构地区：[1]广东省农科院水稻研究所/广东省水稻育种新技术重点实验室,广东广州510640

出　　处：《广东农业科学》2013年第20期1-3,共3页Guangdong Agricultural Sciences

基　　金：国家科技支撑计划项目(2007BAD89B14);农业部公益性行业(农业)科研专项(200803028;201103001);农业部农业结构调整重大技术研究专项(06-03-07B);广东省财政厅项目(粤财预[2005]11号;粤财教[2006]187号);广东省科技厅农业攻关项目(2005B20101001)

摘　　要：2012年在惠州会达菜场进行了一季中晚稻旱直播栽培技术研究,结果表明:一季中晚稻旱直播每667 m2产量为491.84～582.80 kg,在水管的条件下产量水平较高,每667 m2比湿润管理增产35.93～38.71 kg,增幅7.11%～7.31%,差异达显著水平;水管的分蘖力较强、最高苗数和有效穗数较多,植株较粗壮、穗子较大、穗粒数较多,群体的颖花数较多,籽粒充实饱满,千粒重较大;水管还表现出根量较大、根系发达,白根数较少、根活力较弱,稻米的蛋白质含量降低、直链淀粉含量上升。Study on cultivation technique of dry direct-seeded for single-middle-late season rice was carried out in Huizhou Huida vegetable farm in 2012. The results showed that, the yield of dry direct seeding cultivation technique of single-middle-late season rice was 491.84-582.80 kg per 667 m2. The yield of live in water had higher yield level, significantly increased 35.93-38.71 kg per 667 m2 than moisture management, with increasing rate of 7.11%-7.31%. Under the condition of live in water for rice, the tillering ability was strong, highest number of seedlings and effective panicles was big, plants was stout, ears was large, grain number per spike was big, spikelets was much, grain was full, 1 000-grain weight was big; amount of roots was large, root was developed, number of white roots was small, root activity was weak; and protein content of rice decreased, amylose content of rice increased.

关 键 词：一季中晚稻 旱直播 栽培技术 

分 类 号：S511.042[农业科学—作物学]