土壤耕作与施肥配合对玉米根系微观结构及产量的影响

张韶昀,李向岭,刘盼,张悦,翟大帅,尹宝重

Effects of Soil Tillage and Fertilization on Root Microstructure and Yield in Maize

Shaoyun Zhang,Xiangling Li,Pan Liu,Yue Zhang,Dashuai Zhai,Baozhong Yin

表1 不同处理夏玉米根系微观结构比较

Table 1 Comparison of root microstructure of summer maize under different treatments

处理 Treatment 中柱直径Stele diameter (μm) 髓腔占中柱面积比例Proportion of pith by stele area (%) 导管直径Vessel diameter (μm) 苗期 Seedling 拔节期 Jointing 抽雄期 Tasseling 灌浆期 Filling 苗期 Seedling 拔节期 Jointing 抽雄期 Tasseling 灌浆期 Filling 苗期 Seedling 拔节期 Jointing 抽雄期 Tasseling 灌浆期 Filling CK 41.7c 97.7b 98.0c 104.7b 13.3d 71.7ab 69.3a 67.7b 6.7b 9.7b 6.7c 9.3b SAF 50.0a 101.0a 102.0b 106.0a 15.7b 74.7a 65.3b 73.7a 6.3c 9.0c 6.7c 8.0d SLF1 47.4b 103.7a 105.3b 107.3a 14.0c 75.0a 71.3a 57.3d 11.3a 8.6d 10.6a 8.6c SLF2 47.3b 74.7c 114.0a 101.3b 16.7a 69.7b 66.6b 60.7c 11.0a 11.0a 8.6b 10.3a