旱薄地夏播谷子氮肥合理施用量及吸氮参数的研究

刘艳丽, 平文超, 周璐璐, 张立新, 解新宇, 王伟, 田伯红

Study on Reasonable Application Amount of Nitrogen Fertilizer and Nitrogen Absorption Parameters of Summer-Sown Foxtail Millet in Dry and Thin Land

Liu Yanli, Ping Wenchao, Zhou Lulu, Zhang Lixin, Xie Xinyu, Wang Wei, Tian Bohong

表1 不同施氮量对谷子各生育时期农艺性状的影响

Table 1 Effects of different nitrogen application rates on agronomic traits of foxtail millet at different growth stages

生长期 Growth stage 处理 Treatment 株高 Plant height (cm) 叶绿素含量 Chlorophyll content 叶鲜重 Leaf fresh weight (g) 叶干重 Leaf dry weight (g) 茎鲜重 Stem fresh weight (g) 茎干重 Stem dry weight (g) 单株鲜重 Fresh weight per plant (g) 穗鲜重 Panicle fresh weight (g) 穗干重 Panicle dry weight (g) 拔节期 Jointing N0 48.60b 32.12b 1.47b 0.35b 2.03b 0.33a 3.52b － － N1 53.99ab 38.47a 1.84ab 0.44ab 2.67ab 0.29a 4.55ab － － N2 59.38a 40.79a 2.88a 0.60a 3.82a 0.39a 6.81a － － N3 59.34a 40.79a 2.79a 0.60a 3.84a 0.50a 6.68a － － 孕穗期 Booting N0 70.89b 40.35a 4.70b 1.07b 7.71b 1.12b 9.06b － － N1 75.11ab 41.27a 5.35ab 1.19ab 9.05b 1.27ab 11.09ab － － N2 80.98a 47.79a 6.94a 1.50a 12.57a 1.69a 15.01a － － N3 77.54ab 67.15a 5.91ab 1.29ab 10.33ab 1.42ab 14.33a － － 抽穗期 Heading N0 82.35b 46.24b 9.18b 3.05b 20.62b 5.77a 34.67b 4.87a 1.47b N1 91.70a 51.52a 10.98ab 3.52ab 25.14ab 6.84a 42.64ab 5.88a 1.87a N2 91.08a 51.35a 11.77ab 3.64ab 26.37ab 6.72a 44.03ab 6.52a 1.64ab N3 92.89a 50.10ab 12.43a 4.05a 29.17a 7.30a 47.73a 6.14a 1.76ab 灌浆期 Filling N0 98.03b 52.22a 10.55a 3.56a 21.49b 6.54a 48.58a 15.39a 7.43a N1 102.10ab 56.02a 11.22a 3.86a 22.58a 7.03a 53.70a 16.90a 8.31a N2 106.30a 55.97a 12.59a 4.23a 28.30a 7.12a 58.18a 17.29a 8.31a N3 104.00ab 55.75a 11.99a 4.12a 26.58a 6.88a 54.74a 16.16a 7.82a 成熟期 Maturation N0 100.70b 31.72b 6.24b 2.67c 18.74b 6.57c 43.74b 18.75b 13.30b N1 104.90ab 37.21a 8.04ab 3.18bc 24.39a 7.91b 54.93a 22.49a 15.78ab N2 108.90a 39.60a 10.21a 3.72ab 23.88a 8.82a 59.24a 25.15a 17.70a N3 109.70a 40.25a 10.17a 3.91a 24.82a 9.08a 63.00a 24.82a 17.23a