不同形态氮对白菜硝酸盐含量影响的研究

Ihe influence of Different-N to the Nitqrate Contert in Ch.cabbage

通过微区田间试验研究了不同形态氮肥对白菜硝酸盐含量的影响。试验结果表明:施用不同种类的化肥,其白菜体内硝酸盐含量不同,施用等氮量的有机肥或硫酸铵,则比施用尿素和硝态氮肥降低硝酸盐含量。白菜在包心期,其植株的部位不同硝酸盐含量也不同,具有根茎>叶柄>叶片的趋势。

We researched the influence of different- N to the Nitrate content in Ch. cabbage. The conclusion is that the Nitrate content in Ch. cabbage is lower when we used organie fertilizer or Sulphuric- NH4 than used urea or NO3^-1 - fertilizer in the condition of the same Nitrate input. In the Wrap heart period the Nitrate content is different in Ch. cabbage. The trend is root - stock 〉 petiole 〉 leaves.