甘薯源库关系建立、发展和平衡对氮肥用量的响应

宁运旺, 马洪波, 张辉, 汪吉东, 许仙菊, 张永春^*

Response of Sweetpotato in Source-Sink Relationship Establishment, Expanding, and Balance to Nitrogen Application Rates

NING Yun-Wang, MA Hong-Bo, ZHANG Hui, WANG Ji-Dong, XU Xian-Ju, ZHANG Yong-Chun^*

图1 甘薯生长前期不同氮用量处理的单株根系形态和生物量 N10、N11和N12表示盆栽试验中3个不同用量氮肥处理, 分别为0、150和300 mg N kg -1 土。相同测定项目标以不同字母的值在 P =0.05水平上差异显著。
Fig. 1 Individual root morphology and biomass of sweetpotato at early growth stage under different nitrogen rates N10, N11, and N12 were the three treatments with different nitrogen rates in pot experiment, which were 0, 150, and 300 mg N kg -1 soil, respectively. Values in the same trait followed by different letters are significantly different at P =0.05.