氮肥施用量对机插优质晚稻产量和稻米品质的影响

唐健,唐闯,郭保卫,张诚信,张振振,王科,张洪程,陈恒,孙明珠

Effect of nitrogen application on yield and rice quality of mechanical transplanting high quality late rice

Jian TANG,Chuang TANG,Bao-Wei GUO,Cheng-Xin ZHANG,Zhen-Zhen ZHANG,Ke WANG,Hong-Cheng ZHANG,Heng CHEN,Ming-Zhu SUN

表9 各处理灌浆结实期的温光情况

Table 9 Temperature and light factors during filling stage

品种 Cultivar 处理 Treatment 日平均温度 Daily mean temperature (℃) 日最高温度 Daily maximum temperature (℃) 日最低温度 Daily minimum temperature (℃) 日平均温差 Daily mean temperature difference (℃) 日平均光照时数 Daily mean illumination hours (h) 2017 美香新占 Meixiangxinzhan N0 20.34 23.97 16.81 7.16 7.14 N1 20.41 23.18 16.24 6.94 6.87 N2 19.52 22.98 16.11 6.87 6.54 N3 19.14 22.78 15.98 6.80 6.17 泰优398 Taiyou 398 N0 23.87 25.49 19.68 5.81 6.87 N1 23.24 25.12 19.37 5.75 6.69 N2 22.17 24.41 19.25 5.16 6.26 N3 19.98 24.19 19.07 5.12 5.76 天优华占 Tianyouhuazhan N0 22.56 25.17 18.23 6.94 6.58 N1 21.49 24.98 18.25 6.73 6.12 N2 21.05 24.52 17.92 6.60 5.56 N3 19.88 23.91 17.24 6.67 5.24 黄华占 Huanghuazhan N0 22.59 25.74 17.86 7.88 6.97 N1 22.11 25.24 17.53 7.71 6.68 N2 21.47 24.56 16.97 7.59 6.25 N3 20.41 23.87 16.54 7.33 6.16 2018 美香新占 Meixiangxinzhan N0 21.02 25.06 17.03 8.03 7.05 N1 20.56 24.33 16.54 7.79 6.98 N2 19.61 23.57 15.69 7.88 6.57 N3 19.41 23.12 15.40 7.72 6.21 泰优398 Taiyou 398 N0 24.90 26.57 21.28 5.29 6.66 N1 23.45 25.98 20.95 5.03 6.25 N2 22.35 24.56 20.41 4.15 5.78 N3 22.04 24.22 19.88 4.34 5.52 天优华占 Tianyouhuazhan N0 22.76 26.32 19.23 7.09 6.15 N1 22.46 26.12 18.84 7.28 5.57 N2 21.15 25.74 18.35 7.39 5.68 N3 20.94 25.16 18.02 7.14 5.21 黄华占 Huanghuazhan N0 22.75 26.63 18.91 7.72 6.72 N1 22.13 25.93 18.46 7.47 6.34 N2 21.58 25.12 18.17 6.95 5.97 N3 20.97 24.95 17.76 7.19 6.04