The invention discloses a
machine-transplanted
hybrid rice hill-reduction
seedling-stabilizing large-ear culturing method. The
machine-transplanted line spacing of
hybrid rice is 0.30 m, and the hill spacing is adjusted to be 0.20 m to 0.25 m; the
seedling grabbing area is set according to the
seedling establishment percentage, and during
transplanting, the number of seedlings in each hill is 3 to 5 on average so that it can be guaranteed that the number of survival seedlings in each hill is 2 to 4 after regeneration, the density is 132000 hills per hm<2> to 167000 hills per hm<2>, the average total seedling number is 240 pieces per hm<2> to 300 pieces per hm<2>; in other words, the weight of seeds per hm<2> is kept being 18 kg to 22.5 kg. According to the
machine-transplanted
hybrid rice hill-reduction seedling-stabilizing large-ear culturing method, the number of
transplanting hills is reduced by 25.8% to 41% compared with conventional
transplanting, and transplanting efficiency is greatly improved; as the number of hills is decreased without decreasing the number of seedlings, the number of seedlings in each hill is increased, the transplanting missing rate is reduced by 10 percent or above, and the number of persons for seedling supplementing is decreased by 3 to 4 per hm<2>; the machine-transplanted late-planting and late-harvesting area of multi-
cropping rice fields in Sichuan is large, and rainwater after autumn is much; when the number of hills is decreased, ventilation and light transmitting become better, pest and
disease damage is reduced, lodging is reduced, and
large ears, more grains and high yield are achieved.