摘要
为了明确四川单季籼稻机插旱育秧的生长特点及其配套技术,采用田间小区试验和生产示范,研究了不同处理机插旱育秧的秧苗素质、栽后分蘖消长、产量和产量构成因素。结果表明:与常规旱育秧和塑盘旱育秧相比,机插旱育秧秧苗素质差,栽后分蘖发生较迟缓,中期分蘖速度较快,有效穗较多,穗粒数、结实率和籽粒充实率较强化栽培和优化定抛低。中大苗机插旱育秧播种密度以75g/框较适宜,秧龄在35～40天。
The growth characters and cultural techniques of dry seedbed seedlings for mechanized transplanting were studies with the methods of field experiments. The results showed as follows： there were lower seedlings qualities of dry seedbed seedlings for mechanized transplanting than normal dry seedbed seedlings and seedlings raised on plastic trays. The tillers emergency of mechanized transplanting seedlings was lately, and had higher tillering speed in full-tillering stage. Mechanized transplanting rice had higher effective panicles, but lower spikelets per ears, seed-setting rate and filling rate of grains. The fittest sowing density of dry seedbed seedlings for mechanized transplanting was 75g/tray （28cm×58cm） and seedlings ages were 35-40d. From the experiments, formed the technology of dry seedbed seedlings for mechanized transplanting those raised on yard ground too.
出处
《农机化研究》
北大核心
2008年第1期138-141,共4页
Journal of Agricultural Mechanization Research
基金
国家粮食丰产科技工程项目(2006BAD02A05)
关键词
农艺学
旱育秧
试验
机插
秧苗素质
agronomy
dry seedbed seedlings
experiment
mechanized transplanting
rice
seedlings qualities
