论文部分内容阅读
磷能促进甜菜根系发育 ,施磷能显著地增加须根的干物重、长度和表面积 ,施磷量与须根干物重呈显著正相关 ,r=0 .999 。施磷量与块根产量呈显著正相关 ,r=0 .90 4 。在本试验土壤条件下 ,磷肥对块根含糖率没有明显的影响。
Phosphorus promoted root development of beet. Phosphorus application significantly increased dry weight, length and surface area of fibrous roots. Phosphorus application had a significant positive correlation with root dry matter weight (r = 0.999). There was a significant positive correlation between phosphorus application rate and tuber yield (r = 0. 90 4). Under the soil conditions in the experiment, phosphate fertilizer had no obvious effect on the sugar content of roots.