种植密度和施氮量对优质常规稻桂育12产量和米质的影响

李虎, 黄秋要, 吴子帅, 刘广林, 陈传华, 罗群昌, 朱其南

Effects of Planting Density and Nitrogen Application Rate on Yield and Rice Quality of High-Quality Conventional Rice Guiyu 12

Li Hu, Huang Qiuyao, Wu Zishuai, Liu Guanglin, Chen Chuanhua, Luo Qunchang, Zhu Qinan

表1 种植密度和施氮量对桂育12早稻经济性状及产量的影响

Table 1 Effects of planting density and nitrogen application rate on economic characteristics and yield of Guiyu 12 early rice

处理 Treatment 有效穗数 Effective panicles (×106/hm2) 最高苗数 Maximum number of seedlings (×106/hm2) 成穗率 Panicle formation rate (%) 千粒重 1000-grain weight (g) 结实率 Seed-setting rate (%) 穗粒数 Grain number per panicle 穗长 Panicle length (cm) 株高 Plant height (cm) 产量 Yield (×103 kg/hm2) A1 2.85b 4.37bB 65.25a 22.06a 86.66a 125.56a 26.91a 114.23b 6.54a A2 3.21a 5.22aA 61.49a 21.99a 87.91a 131.76a 27.23a 118.36ab 6.33a A3 3.15a 5.52aA 57.33a 21.85a 86.26a 131.34a 27.23a 120.20a 6.39a B1 2.79cB 4.79b 59.05bB 21.96a 86.33a 128.22a 27.29a 116.17bB 6.52a B2 3.12bA 5.25a 59.93bAB 22.16a 87.46a 130.33a 27.21a 120.14aA 6.36a B3 3.29aA 5.07ab 65.08aA 21.79a 87.05a 130.11a 26.87a 115.99bB 6.38a A1B1 2.54bB 3.96b 64.11a 21.83a 86.39a 128.15a 26.91a 112.67b 6.71a A1B2 2.96aA 4.66a 64.02a 22.23a 86.58a 122.79a 26.93a 115.67a 6.53ab A1B3 3.05aA 4.50a 67.60a 22.12a 87.02a 125.74a 26.89a 114.37ab 6.39b A2B1 2.83bB 4.75b 59.66a 22.33a 87.55a 127.67a 27.43a 117.67abAB 6.10bB A2B2 3.28aA 5.44a 60.36a 21.97ab 87.96a 132.59a 27.30a 121.00aA 6.63aA A2B3 3.51aA 5.47a 64.44a 21.68b 88.23a 135.03a 26.95a 116.40bB 6.28bAB A3B1 3.01b 5.65a 53.38b 21.71ab 85.05a 128.84a 27.51a 119.67bAB 6.75aA A3B2 3.12ab 5.65a 55.41b 22.29a 87.84a 135.62a 27.40a 123.73aA 5.94bB A3B3 3.31a 5.25a 63.20a 21.56b 85.88a 129.57a 26.76a 117.20bB 6.47bB A 7.99* 49.06** 2.94 1.67 1.51 2.22 2.80 7.43* 3.37 B 22.45** 2.66 5.83* 2.21 0.90 0.36 0.73 10.96** 2.49 A×B 1.48 1.56 0.54 2.01 0.59 1.37 0.19 1.47 14.06**