A Japonica rice (Oryza sativa L.) cultivar Wuyunjing 24 currentlyused in local production were grown in the field. Across the two years, seedlings were raised in the seed bed with sowing date on 15 May and transplanted on 10 June at a hill spacing of 0.25 m × 0.16 mwith two seedlings per hill. Phosphorus (30 kg ha−1as single super-phosphate) and potassium (40 kg ha−1as KCl) were applied and incorporated before transplanting. Weeds, insects, and diseaseswere controlled as required to avoid yield loss. The heading date(50% plants) of the cultivar was on 27–28 August, and plants wereharvested on 15–16 October.