多效唑和氮肥对马铃薯产量及经济效益的影响

杨妍, 徐宁生, 潘哲超, 李燕山, 杨琼芬, 张磊

Effects of Paclobutrazol and Nitrogen on Yield and Economic Benefit of Potato

Yang Yan, Xu Ningsheng, Pan Zhechao, Li Yanshan, Yang Qiongfen, Zhang Lei

表3 2019-2020年氮肥对马铃薯产量及其构成因素的影响

Table 3 Effects of nitrogen fertilizer on potato yield and its components in 2019-2020

年份 Year 氮肥 Nitrogen fertilizer 产量 Yield (t/hm2) 大薯率 Large tuber rate (%) 中薯率 Middle tuber rate (%) 小薯率 Small tuber rate (%) 单株结薯个数 Tuber number per plant 2019 N0 36.35b 61.89d 25.91a 12.20a 7.01b N1 44.02a 64.64c 23.46ab 11.90a 7.55a N2 48.71a 71.33a 18.30d 10.37b 7.57a N3 48.43a 70.95ab 18.69cd 10.36b 7.83a N4 43.28a 68.41b 21.32bc 10.27b 6.89b 2020 N0 39.44d 61.89c 25.69a 12.42a 7.56c N1 55.16c 64.42c 22.81b 12.76a 8.58b N2 65.95a 71.56a 18.53c 9.91b 9.30a N3 66.89a 70.95ab 18.59c 10.46b 9.24a N4 59.53b 68.41b 21.98b 9.61b 8.58b 平均Mean N0 37.90c 63.19d 23.43a 13.38a 7.29c N1 49.59b 65.40c 22.10a 12.50a 8.06ab N2 57.33a 71.84a 17.89c 10.28b 8.43a N3 57.66a 71.71a 18.65c 9.64b 8.54a N4 51.40b 69.35b 20.37b 10.29b 7.73bc