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本试验通过对迟播迟栽水稻的秧苗素质、生育期及产量构成因素和产量的研究。结果表明:不同播栽期和寄栽规格的秧苗素质差异达极显著水平,迟播迟栽的水稻本田期缩短5-10天。寄栽密度稀的秧苗素质优于寄栽密度大的。早播早栽有利于增加有效穗、着粒数、结实率和千粒重。寄栽稀的可以增加有效穗数,但穗子较小,千粒重随密度减小而增大。播栽期和寄栽规格对产量均有影响,但互作效应不显著。研究认为:适当地进行迟播迟栽,虽然获得的水稻产量相对偏低,但可以比常规栽培模式多收获一季玉米,可大幅度提高周年的粮食总产量。
In this study, through late rice sowing late rice seedling quality, growth period and yield components and yield studies. The results showed that the differences of seedling quality at different sowing dates and seeding specifications were extremely significant, and the late rice sowing shorted and late sowing was shortened by 5-10 days. Seedling density planting seedling quality is better than planting density. Early sowing early planting is conducive to increasing effective panicles, grain number, seed setting rate and grain weight. Send planted spikes can increase the number of effective panicles, but smaller ears, 1000-grain weight increases with decreasing density. Sowing date and planting specifications have an impact on the yield, but the interaction effect is not significant. The study suggests that: late late sowing is appropriate, although the yield of rice obtained is relatively low, but more than the conventional cultivation mode to harvest a quarter of corn, can greatly improve the annual total grain output.