纳米制剂对小白菜生长及氮肥利用率的影响

为提高肥料利用率，研发环境友好型肥料，从源头上控制农业面源污染，采用土培试验，研究了纳米制剂对小白菜产量、养分吸收量、氮肥利用率、叶片叶绿素含量及部分品质指标的影响。结果表明，氮肥中添加纳米氢醌和纳米茶多酚均可提高小白菜产量和叶片叶绿素含量、增加氮磷钾养分吸收量、提高氮肥利用率，以上效果在纳米制剂添加量增加时更加明显。在本试验所设的4种添加纳米制剂处理中，以4%茶多酚处理的效果最好，与未添加纳米制剂处理相比，小白菜产量增加44.6%，氮肥利用率增加134.1%。添加纳米制剂对小白菜品质的影响却不同，可溶性糖含量变化不大，硝酸盐含量有所提高，维生素C含量也有提高趋势，但干重增加最多的（4%茶多酚）处理维生素C含量并没有提高。总之添加纳米制剂可以提高作物产量并能提高肥料利用率。

Effects of Nano-preparation on Growth and Nitrogen Fertilizer Use Efficiency of Cabbage

In order to improve the fertilizer use efficiency,research and develop environment-friendly fertilizers,which can control the agricultural nonpoint source pollution from the source,a soil pot experiment was taken to study the effects of nano-preparation on the production,nutrient absorption,nitrogen fertilizer use efficiency,leaf chlorophyll content and some quality indexes of cabbage.The results showed that,the production,leaf chlorophyll content,the amount of nutrients (N,P,K) absorption and nitrogen fert...