期刊论文

中文

西北农业学报

1004-1389

2006

15

2

134-137

10.3969/j.issn.1004-1389.2006.02.035

湖南省科技厅重点项目（04NK2006）； 湖南农业大学资源环境学院创新基金； 湖南农业大学学生科技创新基金；

本校为第一机构

采用砂培和土培试验，研究喷施氯化钾和蔗糖溶液、光照及钼素营养对小白菜体内硝酸盐累积的影响。结果表明，在小白菜生长期叶面喷施蔗糖和氯化钾溶液，均能明显降低体内硝酸盐含量，但不影响其生物量；遮光和缺钼处理明显增加小白菜体内硝酸盐含量，降低根系活力及可食部分产量。缺钼处理还明显降低叶片硝酸还原酶活性。

The effects of spraying KCI and sucrose solutions, light and nutritional Mo on the nitrate accumulation in a variety of Chinese cabbage were investigated by sand culture and soil culture test. The results showed that spraying sucrose and KCl solutions on the leaf surface of Chinese cabbage obviously decreased the contents of nitrate in it, and not affected its biomass; shielding light and without applying mo apparently increased the contents of nitrate, dropped root activity and yields of edible parts. The deficiency ...